The Decline and Conservation History of Natural Shorelines - April 1995 The Situation in the 1990s A 1995 survey revealed that natural shorelines across Japan had significantly decreased, shrinking to approximately 55% of their total length. The primary cause of this decline was the increase in artificial shorelines, such as port development and revetment construction. Particularly concerning were the confirmed losses of approximately 40 kilometers in Hokkaido and significant natural coastline disappearances in Akita Prefecture, raising fears of ecological impacts. Natural coastlines serve as vital habitats supporting precious biodiversity, and their loss leads to habitat destruction for numerous plants and animals. In response to this situation, conservation activities and initiatives aimed at restoring natural environments have been advanced, but they have yet to yield sufficient results.
Progress in the 2000s Entering the 2000s, natural restoration projects advanced nationwide. Notably, Chiba Prefecture initiated a tidal flat restoration plan for Tokyo Bay, targeting the recovery of approximately 30 hectares of tidal flats. Furthermore, the Ministry of the Environment enacted the "Natural Restoration Promotion Act" in 2002, establishing a framework for local residents, businesses, and municipalities to collaborate on ecosystem restoration. However, development pressures remained strong, with new landfill projects continuing, creating numerous challenges. Situation in the 2010s By the 2010s, the impacts of climate change compounded the problem, further accelerating the decline of natural coastlines. In Okinawa, coral bleaching spread, leading to increased conservation activities on Ishigaki Island and Miyako Island. The government formulated the "National Biodiversity Strategy 2012-2020," setting clear goals for protecting and restoring natural coastlines. Fur
thermore, the introduction of "coastal erosion control structures designed for coexistence with nature" to curb coastal erosion progressed, but budget constraints and technical challenges hindered these efforts. Current Situation in the 2020s Entering the 2020s, Japan's natural coastlines show a further declining trend. According to a Ministry of the Environment survey, the total length of natural coastline had fallen below approximately 50% of the total by 2023, with the decline continuing. Landfill development is particularly advanced in urban areas like Tokyo Bay and Osaka Bay. The plastic waste problem has also worsened, urgently requiring responses from companies and local governments. On the other hand, companies and organizations such as Nestlé Japan and The Nippon Foundation are actively working to reduce plastic waste and tackle marine debris.
Conclusion The decline of natural coastlines remains a long-term environmental challenge in Japan. Efforts from the 1990s to the 2020s have yielded some results, but further action is essential. Striking a balance between development and conservation to preserve a rich natural environment for future generations is an urgent priority. Sources - Ministry of the Environment: Overview of the "Act on the Promotion of Nature Restoration" - Chiba Prefecture Tokyo Bay Restoration Plan Report (2005 Edition)
- Okinawa Prefecture Ishigaki Island Nature Conservation Activity Report (2015) - Ministry of the Environment "National Biodiversity Strategy 2012-2020" - Nestlé Japan Official Website "Plastic Waste Reduction Initiatives" - The Nippon Foundation "Setouchi Oceans X" Activity Report (2023) Source: 9-1995-04-15.pdf
Friday, March 6, 2026
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自然海岸の減少と保全の歴史-1995年4月
自然海岸の減少と保全の歴史-1995年4月
1990年代の状況
1995年の調査では、日本全国の自然海岸が著しく減少し、総延長の約55％にまで縮小していることが判明しました。この減少の主な要因は、港湾開発や護岸工事などの人工海岸の増加にあります。特に、北海道では約40キロ、秋田県では大幅な自然海岸の消失が確認され、生態系への影響が懸念されています。自然海岸は貴重な生物多様性を支える重要な場であり、その消失は多くの動植物の生息地喪失につながっています。この事態を受け、保護活動や自然環境の復元を目指す取り組みが進められていますが、十分な成果を上げるには至っていません。
2000年代の進展
2000年代に入ると、自然再生事業が全国的に進められました。特に、千葉県では東京湾の干潟再生計画が開始され、約30ヘクタールの干潟復元を目標としました。さらに、環境省は2002年に「自然再生推進法」を制定し、地域住民、企業、自治体が協力して生態系の再生に取り組む枠組みを構築しました。一方で、開発圧力は依然として強く、新たな埋立地造成が継続しており、課題が山積していました。
2010年代の状況
2010年代になると、気候変動の影響も加わり、自然海岸の減少がさらに深刻化しました。沖縄では珊瑚礁の白化現象が広がり、石垣島や宮古島での保全活動が活発化しました。政府は「生物多様性国家戦略2012-2020」を策定し、自然海岸の保護と回復に向けた目標を明確にしました。また、沿岸浸食を抑えるための「自然共生型護岸」の導入が進められましたが、予算不足や技術的課題が取り組みを妨げています。
2020年代の現状
2020年代に入り、日本の自然海岸はさらに減少傾向を示しています。環境省の調査では、2023年時点で自然海岸の総延長は全体の約50％を下回り、減少が続いています。特に東京湾や大阪湾などの都市部では埋立地開発が進行中です。プラスチックごみの問題も深刻化しており、企業や自治体による対応が急がれています。一方で、ネスレ日本や日本財団などの企業や団体が、廃プラスチック削減や海洋ごみ対策に積極的に取り組んでいます。
結論
自然海岸の減少は、日本における環境保護の長期的課題として依然として残されています。1990年代から2020年代にかけての取り組みは一定の成果を上げていますが、さらなる努力が求められています。開発と保全のバランスを取りながら、次世代に豊かな自然環境を残すことが急務です。
情報源
- 環境省「自然再生推進法」概要資料
- 千葉県東京湾再生計画報告書（2005年版）
- 沖縄県石垣島自然保護活動報告（2015年）
- 環境省「生物多様性国家戦略2012-2020」
- ネスレ日本公式サイト「プラスチックごみ削減の取り組み」
- 日本財団「瀬戸内オーシャンズX」活動報告（2023年）
出典：9-1995-04-15.pdf
1990年代の状況
1995年の調査では、日本全国の自然海岸が著しく減少し、総延長の約55％にまで縮小していることが判明しました。この減少の主な要因は、港湾開発や護岸工事などの人工海岸の増加にあります。特に、北海道では約40キロ、秋田県では大幅な自然海岸の消失が確認され、生態系への影響が懸念されています。自然海岸は貴重な生物多様性を支える重要な場であり、その消失は多くの動植物の生息地喪失につながっています。この事態を受け、保護活動や自然環境の復元を目指す取り組みが進められていますが、十分な成果を上げるには至っていません。
2000年代の進展
2000年代に入ると、自然再生事業が全国的に進められました。特に、千葉県では東京湾の干潟再生計画が開始され、約30ヘクタールの干潟復元を目標としました。さらに、環境省は2002年に「自然再生推進法」を制定し、地域住民、企業、自治体が協力して生態系の再生に取り組む枠組みを構築しました。一方で、開発圧力は依然として強く、新たな埋立地造成が継続しており、課題が山積していました。
2010年代の状況
2010年代になると、気候変動の影響も加わり、自然海岸の減少がさらに深刻化しました。沖縄では珊瑚礁の白化現象が広がり、石垣島や宮古島での保全活動が活発化しました。政府は「生物多様性国家戦略2012-2020」を策定し、自然海岸の保護と回復に向けた目標を明確にしました。また、沿岸浸食を抑えるための「自然共生型護岸」の導入が進められましたが、予算不足や技術的課題が取り組みを妨げています。
2020年代の現状
2020年代に入り、日本の自然海岸はさらに減少傾向を示しています。環境省の調査では、2023年時点で自然海岸の総延長は全体の約50％を下回り、減少が続いています。特に東京湾や大阪湾などの都市部では埋立地開発が進行中です。プラスチックごみの問題も深刻化しており、企業や自治体による対応が急がれています。一方で、ネスレ日本や日本財団などの企業や団体が、廃プラスチック削減や海洋ごみ対策に積極的に取り組んでいます。
結論
自然海岸の減少は、日本における環境保護の長期的課題として依然として残されています。1990年代から2020年代にかけての取り組みは一定の成果を上げていますが、さらなる努力が求められています。開発と保全のバランスを取りながら、次世代に豊かな自然環境を残すことが急務です。
情報源
- 環境省「自然再生推進法」概要資料
- 千葉県東京湾再生計画報告書（2005年版）
- 沖縄県石垣島自然保護活動報告（2015年）
- 環境省「生物多様性国家戦略2012-2020」
- ネスレ日本公式サイト「プラスチックごみ削減の取り組み」
- 日本財団「瀬戸内オーシャンズX」活動報告（2023年）
出典：9-1995-04-15.pdf
Thursday, March 5, 2026
Matsumoto City's Heavy Metal Contaminated Soil Remediation Project (2007-2024)
Matsumoto City's Heavy Metal Contaminated Soil Remediation Project (2007-2024)
Since 2007, Matsumoto City has been actively working on a remediation project to address heavy metal contaminated soil. The primary contaminants, lead (Pb) and hexavalent chromium (Cr6+), have been a major concern, with focused investigations and remediation efforts covering approximately 12000 square meters near Matsumoto Station and 8500 square meters in the Asama Onsen area. Shimizu Corporation introduced electrolytic purification technology, reducing the remediation cost of lead-contaminated soil to 30000 yen per ton, achieving an annual processing capacity of approximately 4000 tons. Additionally, DOWA Eco-System introduced iron powder reduction technology, which shortened the remediation period for hexavalent chromium from the conventional 12 weeks to 6 weeks. These initiatives have enabled the treatment of over 80% of the 5000 tons of contaminated soil annually, with remediated land being utilized for constructing hotels and commercial facilities. During the 2010s, fur
ther contaminated areas, such as the Kiri district, were identified and remediated. For instance, in 2015, high concentrations of lead were detected on 1200 square meters of land in the Kiri district, and remediation costs amounted to approximately 300 million yen. During this period, the Matsumoto City Environmental Energy Division conducted over 300 investigations, allocating a budget of approximately 2 billion yen to the remediation projects.
In the 2020s, Matsumoto City has seen an increase in the designation of "areas requiring measures" and "areas requiring notification prior to land alteration" under the Soil Contamination Countermeasures Act. As of 2024, specific sites such as Kaname 478 (259.83 square meters, fluorine concentration of 5.5 mg/L) and Yoshino 105-1 (158.09 square meters, hexavalent chromium concentration of 8.2 mg/L) have been designated, and remediation efforts are ongoing. Shimizu Corporation's on-site plant can now process up to 100 tons of contaminated soil per day, and DOWA Eco-System has successfully reduced the cost of hexavalent chromium remediation to 20000 yen per ton using iron powder reduction technology. Citywide, approximately 6000 tons of contaminated soil are generated annually, with an estimated annual remediation cost of 1.8 billion yen. Matsumoto City plans to utilize 50% of the remediated land for new facility construction by 2025, contributing significantly to reducing heal
th risks for residents and utilizing tourism resources. The Matsumoto City Environmental Energy Division, in collaboration with the local company Environmental Science Co., Ltd., aims to further improve efficiency and reduce costs through the adoption of advanced technologies.
Since 2007, Matsumoto City has been actively working on a remediation project to address heavy metal contaminated soil. The primary contaminants, lead (Pb) and hexavalent chromium (Cr6+), have been a major concern, with focused investigations and remediation efforts covering approximately 12000 square meters near Matsumoto Station and 8500 square meters in the Asama Onsen area. Shimizu Corporation introduced electrolytic purification technology, reducing the remediation cost of lead-contaminated soil to 30000 yen per ton, achieving an annual processing capacity of approximately 4000 tons. Additionally, DOWA Eco-System introduced iron powder reduction technology, which shortened the remediation period for hexavalent chromium from the conventional 12 weeks to 6 weeks. These initiatives have enabled the treatment of over 80% of the 5000 tons of contaminated soil annually, with remediated land being utilized for constructing hotels and commercial facilities. During the 2010s, fur
ther contaminated areas, such as the Kiri district, were identified and remediated. For instance, in 2015, high concentrations of lead were detected on 1200 square meters of land in the Kiri district, and remediation costs amounted to approximately 300 million yen. During this period, the Matsumoto City Environmental Energy Division conducted over 300 investigations, allocating a budget of approximately 2 billion yen to the remediation projects.
In the 2020s, Matsumoto City has seen an increase in the designation of "areas requiring measures" and "areas requiring notification prior to land alteration" under the Soil Contamination Countermeasures Act. As of 2024, specific sites such as Kaname 478 (259.83 square meters, fluorine concentration of 5.5 mg/L) and Yoshino 105-1 (158.09 square meters, hexavalent chromium concentration of 8.2 mg/L) have been designated, and remediation efforts are ongoing. Shimizu Corporation's on-site plant can now process up to 100 tons of contaminated soil per day, and DOWA Eco-System has successfully reduced the cost of hexavalent chromium remediation to 20000 yen per ton using iron powder reduction technology. Citywide, approximately 6000 tons of contaminated soil are generated annually, with an estimated annual remediation cost of 1.8 billion yen. Matsumoto City plans to utilize 50% of the remediated land for new facility construction by 2025, contributing significantly to reducing heal
th risks for residents and utilizing tourism resources. The Matsumoto City Environmental Energy Division, in collaboration with the local company Environmental Science Co., Ltd., aims to further improve efficiency and reduce costs through the adoption of advanced technologies.
Matsumoto City's Heavy Metal Contaminated Soil Remediation Project (2007-2024)
Matsumoto City's Heavy Metal Contaminated Soil Remediation Project (2007-2024)
Since 2007, Matsumoto City has been actively working on a remediation project to address heavy metal contaminated soil. The primary contaminants, lead (Pb) and hexavalent chromium (Cr6+), have been a major concern, with focused investigations and remediation efforts covering approximately 12000 square meters near Matsumoto Station and 8500 square meters in the Asama Onsen area. Shimizu Corporation introduced electrolytic purification technology, reducing the remediation cost of lead-contaminated soil to 30000 yen per ton, achieving an annual processing capacity of approximately 4000 tons. Additionally, DOWA Eco-System introduced iron powder reduction technology, which shortened the remediation period for hexavalent chromium from the conventional 12 weeks to 6 weeks. These initiatives have enabled the treatment of over 80% of the 5000 tons of contaminated soil annually, with remediated land being utilized for constructing hotels and commercial facilities.
During the 2010s, further contaminated areas, such as the Kiri district, were identified and remediated. For instance, in 2015, high concentrations of lead were detected on 1200 square meters of land in the Kiri district, and remediation costs amounted to approximately 300 million yen. During this period, the Matsumoto City Environmental Energy Division conducted over 300 investigations, allocating a budget of approximately 2 billion yen to the remediation projects.
In the 2020s, Matsumoto City has seen an increase in the designation of "areas requiring measures" and "areas requiring notification prior to land alteration" under the Soil Contamination Countermeasures Act. As of 2024, specific sites such as Kaname 478 (259.83 square meters, fluorine concentration of 5.5 mg/L) and Yoshino 105-1 (158.09 square meters, hexavalent chromium concentration of 8.2 mg/L) have been designated, and remediation efforts are ongoing. Shimizu Corporation's on-site plant can now process up to 100 tons of contaminated soil per day, and DOWA Eco-System has successfully reduced the cost of hexavalent chromium remediation to 20000 yen per ton using iron powder reduction technology.
Citywide, approximately 6000 tons of contaminated soil are generated annually, with an estimated annual remediation cost of 1.8 billion yen. Matsumoto City plans to utilize 50% of the remediated land for new facility construction by 2025, contributing significantly to reducing health risks for residents and utilizing tourism resources. The Matsumoto City Environmental Energy Division, in collaboration with the local company Environmental Science Co., Ltd., aims to further improve efficiency and reduce costs through the adoption of advanced technologies.
Since 2007, Matsumoto City has been actively working on a remediation project to address heavy metal contaminated soil. The primary contaminants, lead (Pb) and hexavalent chromium (Cr6+), have been a major concern, with focused investigations and remediation efforts covering approximately 12000 square meters near Matsumoto Station and 8500 square meters in the Asama Onsen area. Shimizu Corporation introduced electrolytic purification technology, reducing the remediation cost of lead-contaminated soil to 30000 yen per ton, achieving an annual processing capacity of approximately 4000 tons. Additionally, DOWA Eco-System introduced iron powder reduction technology, which shortened the remediation period for hexavalent chromium from the conventional 12 weeks to 6 weeks. These initiatives have enabled the treatment of over 80% of the 5000 tons of contaminated soil annually, with remediated land being utilized for constructing hotels and commercial facilities.
During the 2010s, further contaminated areas, such as the Kiri district, were identified and remediated. For instance, in 2015, high concentrations of lead were detected on 1200 square meters of land in the Kiri district, and remediation costs amounted to approximately 300 million yen. During this period, the Matsumoto City Environmental Energy Division conducted over 300 investigations, allocating a budget of approximately 2 billion yen to the remediation projects.
In the 2020s, Matsumoto City has seen an increase in the designation of "areas requiring measures" and "areas requiring notification prior to land alteration" under the Soil Contamination Countermeasures Act. As of 2024, specific sites such as Kaname 478 (259.83 square meters, fluorine concentration of 5.5 mg/L) and Yoshino 105-1 (158.09 square meters, hexavalent chromium concentration of 8.2 mg/L) have been designated, and remediation efforts are ongoing. Shimizu Corporation's on-site plant can now process up to 100 tons of contaminated soil per day, and DOWA Eco-System has successfully reduced the cost of hexavalent chromium remediation to 20000 yen per ton using iron powder reduction technology.
Citywide, approximately 6000 tons of contaminated soil are generated annually, with an estimated annual remediation cost of 1.8 billion yen. Matsumoto City plans to utilize 50% of the remediated land for new facility construction by 2025, contributing significantly to reducing health risks for residents and utilizing tourism resources. The Matsumoto City Environmental Energy Division, in collaboration with the local company Environmental Science Co., Ltd., aims to further improve efficiency and reduce costs through the adoption of advanced technologies.
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Overseas Expansion of Desulfurization Equipment - Development from 1998 to the 2020s In 1998, Mitsubishi Heavy Industries and Hitachi, leading Japanese companies, began exporting desulfurization equipment to the Asian market. Demand grew particularly strong in Taiwan and South Korea, with plans to install 200 units in Taiwan and 150 units in South Korea by 2025. These units efficiently remove sulfur oxides (SOx) generated by power plants and steel mills, contributing to regional air pollution control. Employing wet scrubbing technology, they chemically absorb SOx using limestone as an absorbent. The resulting byproduct, approximately 100,000 tons of gypsum annually, is reused as construction material, helping reduce industrial waste.
Furthermore, Mitsubishi Heavy Industries formed a technical partnership with Taiwan Power Company (Taipower) to adapt to local environmental standards. In South Korea, Korea Southeast Power adopted units capable of removing over 95% of SOx. This was expected to reduce SOx emissions in South Korea by approximately 150,000 tons annually. With an eye on entering the European market, technological improvements were also advanced to meet regional environmental standards.
Entering the 2020s, Japanese companies further intensified the overseas expansion of desulfurization equipment. Mitsubishi Power, a subsidiary of Mitsubishi Heavy Industries, secured an order for two of the world's largest flue gas desulfurization (FGD) units for Serbia's Nikola Tesla B coal-fired power plant, with operation scheduled to commence in 2024. This power plant has an output of 1.34 million kW, and each FGD unit installed can process flue gas up to 670,000 kW. The introduction of these FGDs is expected to reduce SO₂ emissions by 96%, achieving levels below 130 mg/Nm³, compliant with the EU's new Industrial Emissions Directive (IED) standards.
Mitsubishi Power has delivered over 300 FGD units globally. In 2019, it secured the top market share of 37.2% in the FGD market. Cumulatively over the six years from 2014, it achieved a 37% share with a total capacity of 51.01 million kW. In the Asian market, amid rising demand for Air Quality Control Systems (AQCS) in emerging economies like China and India, Mitsubishi Power contributes to regional environmental improvement through technology transfer and guidance.
In this way, Japanese companies continue to play a vital role in improving the global environment and realizing a sustainable society by leveraging desulfurization technology.
Furthermore, Mitsubishi Heavy Industries formed a technical partnership with Taiwan Power Company (Taipower) to adapt to local environmental standards. In South Korea, Korea Southeast Power adopted units capable of removing over 95% of SOx. This was expected to reduce SOx emissions in South Korea by approximately 150,000 tons annually. With an eye on entering the European market, technological improvements were also advanced to meet regional environmental standards.
Entering the 2020s, Japanese companies further intensified the overseas expansion of desulfurization equipment. Mitsubishi Power, a subsidiary of Mitsubishi Heavy Industries, secured an order for two of the world's largest flue gas desulfurization (FGD) units for Serbia's Nikola Tesla B coal-fired power plant, with operation scheduled to commence in 2024. This power plant has an output of 1.34 million kW, and each FGD unit installed can process flue gas up to 670,000 kW. The introduction of these FGDs is expected to reduce SO₂ emissions by 96%, achieving levels below 130 mg/Nm³, compliant with the EU's new Industrial Emissions Directive (IED) standards.
Mitsubishi Power has delivered over 300 FGD units globally. In 2019, it secured the top market share of 37.2% in the FGD market. Cumulatively over the six years from 2014, it achieved a 37% share with a total capacity of 51.01 million kW. In the Asian market, amid rising demand for Air Quality Control Systems (AQCS) in emerging economies like China and India, Mitsubishi Power contributes to regional environmental improvement through technology transfer and guidance.
In this way, Japanese companies continue to play a vital role in improving the global environment and realizing a sustainable society by leveraging desulfurization technology.
脱硫装置の海外展開 - 1998年から2020年代までの発展
脱硫装置の海外展開 - 1998年から2020年代までの発展
1998年、日本企業の代表である三菱重工業と日立製作所は、アジア市場に向けた脱硫装置の輸出を開始しました。特に台湾と韓国での需要が高まり、2025年までに台湾で200基、韓国で150基の設置が計画されました。この装置は、発電所や製鉄工場で発生する硫黄酸化物（SOx）を効率的に除去するためのもので、地域の大気汚染の抑制に寄与しています。湿式脱硫法を採用し、石灰石を吸収剤としてSOxを化学的に吸収し、年間約10万トンの石膏として副生成物を建築資材に再利用するなど、産業廃棄物の削減にも貢献しています。
また、三菱重工業は現地の環境基準に適応するため、台湾の電力会社台電との技術提携も行い、韓国では韓国南東発電がSOxを95%以上除去する能力を持つ装置を採用。これにより韓国では年間約15万トンのSOx削減が見込まれました。さらにヨーロッパ市場への進出も視野に入れ、地域ごとの環境基準に対応するための技術改良が進められました。
2020年代に入ると、日本企業はさらに脱硫装置の海外展開を強化します。三菱重工業の子会社である三菱パワーは、セルビアのニコラ・テスラB石炭火力発電所に世界最大級の排煙脱硫装置（FGD）2基を受注し、2024年中の運転開始を予定しています。この発電所は出力134万kWで、導入されるFGDは1基あたり67万kWの排煙処理が可能です。このFGDの導入により、SO₂排出量が96%削減され、EUの新産業排出指令（IED）基準に適合する130mg/Nm³以下が達成される予定です。
三菱パワーは世界市場で300基以上のFGDの納入実績を持ち、2019年にはFGD市場でトップシェア37.2%を獲得、2014年から6年間の累計でも出力5101万kWでシェア37%を達成しています。アジア市場においても、中国やインドの新興経済圏で空気質制御システム（AQCS）の需要が高まる中、技術供与や指導を通じて地域の環境改善に貢献しています。
このように、日本企業は脱硫装置の技術を活用して、地球環境の改善と持続可能な社会の実現に向けて重要な役割を果たし続けています。
1998年、日本企業の代表である三菱重工業と日立製作所は、アジア市場に向けた脱硫装置の輸出を開始しました。特に台湾と韓国での需要が高まり、2025年までに台湾で200基、韓国で150基の設置が計画されました。この装置は、発電所や製鉄工場で発生する硫黄酸化物（SOx）を効率的に除去するためのもので、地域の大気汚染の抑制に寄与しています。湿式脱硫法を採用し、石灰石を吸収剤としてSOxを化学的に吸収し、年間約10万トンの石膏として副生成物を建築資材に再利用するなど、産業廃棄物の削減にも貢献しています。
また、三菱重工業は現地の環境基準に適応するため、台湾の電力会社台電との技術提携も行い、韓国では韓国南東発電がSOxを95%以上除去する能力を持つ装置を採用。これにより韓国では年間約15万トンのSOx削減が見込まれました。さらにヨーロッパ市場への進出も視野に入れ、地域ごとの環境基準に対応するための技術改良が進められました。
2020年代に入ると、日本企業はさらに脱硫装置の海外展開を強化します。三菱重工業の子会社である三菱パワーは、セルビアのニコラ・テスラB石炭火力発電所に世界最大級の排煙脱硫装置（FGD）2基を受注し、2024年中の運転開始を予定しています。この発電所は出力134万kWで、導入されるFGDは1基あたり67万kWの排煙処理が可能です。このFGDの導入により、SO₂排出量が96%削減され、EUの新産業排出指令（IED）基準に適合する130mg/Nm³以下が達成される予定です。
三菱パワーは世界市場で300基以上のFGDの納入実績を持ち、2019年にはFGD市場でトップシェア37.2%を獲得、2014年から6年間の累計でも出力5101万kWでシェア37%を達成しています。アジア市場においても、中国やインドの新興経済圏で空気質制御システム（AQCS）の需要が高まる中、技術供与や指導を通じて地域の環境改善に貢献しています。
このように、日本企業は脱硫装置の技術を活用して、地球環境の改善と持続可能な社会の実現に向けて重要な役割を果たし続けています。
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The Journey of Satoyama Conservation and Regional Revitalization - Hisaya District, Matsuyama City The "Satoyama Conservation Project" in Hisaya District, Matsuyama City, Ehime Prefecture, launched in 2001, involves local company "Matsuyama Environmental Development" and residents working together to restore degraded forests and revitalize the community. By the 2020s, the project had achieved cumulative planting of over 200,000 trees, with forest regeneration progressing across more than 100 hectares. Improvements in the water quality of the Ishite River and the return of fireflies were observed. However, challenges remain, including landslides due to climate change, an increase in invasive species, and a shortage of workers due to an aging population. Efforts to address these issues through the use of AI technology and funds have made the project a notable model for sustainable community development.
里山保護活動と地域再生の歩み - 松山市久谷地区
里山保護活動と地域再生の歩み - 松山市久谷地区
2001年に始まった愛媛県松山市久谷地区の「里山保全プロジェクト」は、地元企業「松山環境開発」と住民が協力し、荒廃した森林の再生と地域活性化を目指しています。2020年代までに累計20万本以上の植樹を達成し、100ヘクタール超の森林再生が進行。石手川の水質改善やホタルの復活も見られました。一方、気候変動による土砂災害や外来種の増加、高齢化による担い手不足が課題となっています。AI技術や基金の活用で対応を図り、持続可能な地域づくりの模範例として注目されています。
2001年に始まった愛媛県松山市久谷地区の「里山保全プロジェクト」は、地元企業「松山環境開発」と住民が協力し、荒廃した森林の再生と地域活性化を目指しています。2020年代までに累計20万本以上の植樹を達成し、100ヘクタール超の森林再生が進行。石手川の水質改善やホタルの復活も見られました。一方、気候変動による土砂災害や外来種の増加、高齢化による担い手不足が課題となっています。AI技術や基金の活用で対応を図り、持続可能な地域づくりの模範例として注目されています。
Wednesday, March 4, 2026
Progress in Regulating Hazardous Waste Dumping in the North Sea - 2020s At the 1995 North Sea Protection Conference, an agreement was reached to ban hazardous waste dumping in the North Sea by 2020. By the 2020s, a significant reduction in waste had been achieved. Dumping of harmful substances, particularly lead, mercury, cadmium, and PCBs, was reduced to near zero. Germany, France, and Norway invested heavily in recycling facilities and technological development, leading to improved water quality in the North Sea. The United Kingdom has also introduced policies in recent years aiming for a complete cessation of waste dumping, continuing international cooperation for environmental protection.
Progress in Regulating Hazardous Waste Dumping in the North Sea - 2020s At the 1995 North Sea Protection Conference, an agreement was reached to ban hazardous waste dumping in the North Sea by 2020. By the 2020s, a significant reduction in waste had been achieved. Dumping of harmful substances, particularly lead, mercury, cadmium, and PCBs, was reduced to near zero. Germany, France, and Norway invested heavily in recycling facilities and technological development, leading to improved water quality in the North Sea. The United Kingdom has also introduced policies in recent years aiming for a complete cessation of waste dumping, continuing international cooperation for environmental protection.
北海における危険廃棄物投棄規制の進展 - 2020年代
北海における危険廃棄物投棄規制の進展 - 2020年代
1995年の北海保護会議で、2020年までに北海への危険廃棄物投棄を禁止する合意が成立し、2020年代には廃棄物の大幅な削減が達成されました。特に鉛、水銀、カドミウム、PCBなどの有害物質の投棄はほぼゼロに。ドイツやフランス、ノルウェーはリサイクル施設や技術開発に多額の投資を行い、北海の水質改善が進んでいます。イギリスも近年、廃棄物投棄の完全停止を目指す政策を導入し、環境保護に向けた国際的な協力が続いています。
1995年の北海保護会議で、2020年までに北海への危険廃棄物投棄を禁止する合意が成立し、2020年代には廃棄物の大幅な削減が達成されました。特に鉛、水銀、カドミウム、PCBなどの有害物質の投棄はほぼゼロに。ドイツやフランス、ノルウェーはリサイクル施設や技術開発に多額の投資を行い、北海の水質改善が進んでいます。イギリスも近年、廃棄物投棄の完全停止を目指す政策を導入し、環境保護に向けた国際的な協力が続いています。
The Current State of Vehicle Scrapping and Recycling in Japan Japan has recorded a vehicle ownership of 70 million units, with 5 million vehicles scrapped annually. Currently, the shredder dust remaining after dismantling these scrapped vehicles amounts to 1 million tons. As waste disposal associated with scrapped vehicles becomes increasingly serious, attention is turning not only to recycling (recycling into new resources) of car parts but also to reuse.
The Current State of Vehicle Scrapping and Recycling in Japan Japan has recorded a vehicle ownership of 70 million units, with 5 million vehicles scrapped annually. Currently, the shredder dust remaining after dismantling these scrapped vehicles amounts to 1 million tons. As waste disposal associated with scrapped vehicles becomes increasingly serious, attention is turning not only to recycling (recycling into new resources) of car parts but also to reuse.
"Current Status of Used Parts Reuse" However, in Japan, the rate of reusing used parts for automotive repairs and maintenance stands at only about 3% (equivalent to 50 billion yen), compared to 15% in Europe and over 30% in the United States. "Purpose of the Research Report" This research report details the current status and future prospects of reuse—the process within the vehicle disposal chain that imposes the least environmental burden while effectively utilizing resources.
"Germany's Initiatives" In Germany, where 2.6 million vehicles are scrapped annually, design considerations for part recycling and reuse are incorporated from the production stage. Notably, Mercedes-Benz publicly discloses which parts use used components, and consumers accept this as standard practice. In Sweden, the major insurance company "Folksam Insurance" operates a specialized subsidiary, "Folksam Auto," dedicated to dismantling scrapped vehicles and selling used parts, actively promoting the reuse of automotive components.
"Finland's Initiatives" Similarly, in Finland, three companies, including VAT Damage Repair Center Insurance, jointly operate "Autovarikos," a company specializing in vehicle dismantling and used parts sales. Since Finland lacks domestic car manufacturers, repairs are directly brought to this company, resulting in an overwhelmingly high usage rate of used parts. The company also handles a large volume of dismantling work for accident-damaged and scrapped vehicles, maintaining a rich inventory of recycled parts. The current usage rate of used parts in repairs by this company is 15% per vehicle. The goal is to increase this share to 20%.
"Initiatives by Major Automakers" Next, looking at initiatives by major automakers and Japan, Mercedes-Benz, mentioned earlier, collects approximately 110,000 batteries, 50,000 bumpers, 30,000 hubcaps, and 170,000 window panes annually from about 1,300 dealerships in Germany. These are sorted by specialized companies for recycling or reuse. Starting in November 1993, Mercedes-Benz implemented the "Mercedes Recycling System," a specialized logistics system to promote the collection, recycling, and reuse of discarded parts. This system was realized through a partnership with Rents System Transport (RST). RST currently operates an experimental plant that swiftly dismantles and sorts end-of-life vehicles.
"Volvo's Initiatives" Volvo Car Corporation (Sweden) has operated a pilot plant for reuse since 1994. By 1998, it had dismantled 3,000 passenger cars, sorting reusable parts while developing technologies for more effective reuse.
"BMW Japan's Initiatives" As part of the Japanese subsidiary of the German automaker, BMW Japan (Chiba City: 043-297-7075) began offering free end-of-life vehicle collection in 1994. Vehicles collected through dealers are transported to the Himeji plant of a partner company, where they are dismantled and sorted. Materials and parts suitable for reuse or recycling are then sold. Although the initiative currently handles only about 100 vehicles annually, the company's high recycling rate of 80-85% for its various models is cited as a factor enabling the free service. "Mercedes-Benz Japan's Initiatives" Mercedes-Benz Japan (Minato-ku) has built a system since 1980 in Japan to collect high-value parts like transmissions, engines, and gearboxes from authorized domestic dealers for reuse.
"NGP Activities" The activities of the NGP (Nippon Good Parts) Group are also significant. The group currently has 107 member companies, a total of 117 distribution hubs, and possesses an inventory of 350,000 items. Its total annual sales reach 18 billion yen, making it Japan's largest "recycled parts distribution group" and playing a major role in the automotive repair market. One key feature of the group is the utilization of the online "Super Line" system accessible to all members. While individual member companies might hold only a few thousand items each, consolidating all member inventories online enables the group to instantly access a shared inventory of 350,000 items. Locating any single item within this inventory takes just 30 seconds. Computer access to the system reaches 200,000 hits per month, with over 60,000 items traded online monthly on average.
"Japanese Manufacturers' Response" In contrast, Japanese manufacturers show little engagement with reuse. Companies like Toyota Motor Corporation, Honda Motor Co., Ltd., Fuji Heavy Industries Ltd., and Isuzu Motors Ltd. are involved in initiatives such as bumper collection and recycling. However, only two manufacturers—Toyota and Honda—currently operate nationwide programs. Even then, these programs focus solely on used bumpers generated by their respective dealer networks.
"Japan's Reuse Market" Consequently, the current Japanese auto parts reuse market is supported by used car dealers (approx. 50,000 stores), auto dismantlers (approx. 5,000 companies), auto repair shops (approx. 60,000 companies), and used parts retailers (approx. 300 companies). Among these, Shimizu Shokai (Kumagaya City: 0485-24-0610) stands out as a rapidly growing pioneer in used auto parts sales, having completely transitioned from being an auto dismantler. "Shimizu Shokai's Initiatives" Shimizu Shokai thoroughly leveraged such support systems, achieving approximately 60 employees and annual sales of ¥1.05 billion in fiscal 1995. Furthermore, sales of ¥1.4 billion are projected for fiscal 1996. The company sells parts directly usable from scrapped vehicles to approximately 10,000 auto repair shops nationwide. Processing around 150 scrapped vehicles monthly, the company currently holds inventory of about 50,000 parts, claiming to stock nearly all parts for vehicles over
five years old.
"Prospects for the Reuse Market" "Reusing and recycling car parts is commonplace in Europe and America. Conditions are gradually improving in Japan too. I believe this market will reach around ¥300 billion in the near future," stated President Nobuo Shimizu. While part reuse in Japan is currently limited to repairing used cars, if it becomes as common as in Europe and America for new cars, the market will likely expand further.
"Reintroducing the NGP Group" Additionally, the activities of the NGP (Nippon Good Parts) Group, established in 1986 as a consortium of industry peers supporting the company's current business operations, are significant. The group currently has 107 member companies, a total of 117 distribution hubs, and possesses an inventory of 350,000 items. Its total annual sales reach ¥18 billion, making it Japan's largest "recycled parts distribution group" and playing a major role in the automotive repair market. One key feature of the group is the use of the online "Super Line" system accessible to all members. While individual member companies might hold only a few thousand items each, consolidating all member inventories online enables the group to instantly access a shared inventory of 350,000 items. Finding a single item from this inventory takes just 30 seconds. Computer access to the system reaches 200,000 times per month. The number of items traded online averages over 60,000
per month.
"Current Status of Used Parts Reuse" However, in Japan, the rate of reusing used parts for automotive repairs and maintenance stands at only about 3% (equivalent to 50 billion yen), compared to 15% in Europe and over 30% in the United States. "Purpose of the Research Report" This research report details the current status and future prospects of reuse—the process within the vehicle disposal chain that imposes the least environmental burden while effectively utilizing resources.
"Germany's Initiatives" In Germany, where 2.6 million vehicles are scrapped annually, design considerations for part recycling and reuse are incorporated from the production stage. Notably, Mercedes-Benz publicly discloses which parts use used components, and consumers accept this as standard practice. In Sweden, the major insurance company "Folksam Insurance" operates a specialized subsidiary, "Folksam Auto," dedicated to dismantling scrapped vehicles and selling used parts, actively promoting the reuse of automotive components.
"Finland's Initiatives" Similarly, in Finland, three companies, including VAT Damage Repair Center Insurance, jointly operate "Autovarikos," a company specializing in vehicle dismantling and used parts sales. Since Finland lacks domestic car manufacturers, repairs are directly brought to this company, resulting in an overwhelmingly high usage rate of used parts. The company also handles a large volume of dismantling work for accident-damaged and scrapped vehicles, maintaining a rich inventory of recycled parts. The current usage rate of used parts in repairs by this company is 15% per vehicle. The goal is to increase this share to 20%.
"Initiatives by Major Automakers" Next, looking at initiatives by major automakers and Japan, Mercedes-Benz, mentioned earlier, collects approximately 110,000 batteries, 50,000 bumpers, 30,000 hubcaps, and 170,000 window panes annually from about 1,300 dealerships in Germany. These are sorted by specialized companies for recycling or reuse. Starting in November 1993, Mercedes-Benz implemented the "Mercedes Recycling System," a specialized logistics system to promote the collection, recycling, and reuse of discarded parts. This system was realized through a partnership with Rents System Transport (RST). RST currently operates an experimental plant that swiftly dismantles and sorts end-of-life vehicles.
"Volvo's Initiatives" Volvo Car Corporation (Sweden) has operated a pilot plant for reuse since 1994. By 1998, it had dismantled 3,000 passenger cars, sorting reusable parts while developing technologies for more effective reuse.
"BMW Japan's Initiatives" As part of the Japanese subsidiary of the German automaker, BMW Japan (Chiba City: 043-297-7075) began offering free end-of-life vehicle collection in 1994. Vehicles collected through dealers are transported to the Himeji plant of a partner company, where they are dismantled and sorted. Materials and parts suitable for reuse or recycling are then sold. Although the initiative currently handles only about 100 vehicles annually, the company's high recycling rate of 80-85% for its various models is cited as a factor enabling the free service. "Mercedes-Benz Japan's Initiatives" Mercedes-Benz Japan (Minato-ku) has built a system since 1980 in Japan to collect high-value parts like transmissions, engines, and gearboxes from authorized domestic dealers for reuse.
"NGP Activities" The activities of the NGP (Nippon Good Parts) Group are also significant. The group currently has 107 member companies, a total of 117 distribution hubs, and possesses an inventory of 350,000 items. Its total annual sales reach 18 billion yen, making it Japan's largest "recycled parts distribution group" and playing a major role in the automotive repair market. One key feature of the group is the utilization of the online "Super Line" system accessible to all members. While individual member companies might hold only a few thousand items each, consolidating all member inventories online enables the group to instantly access a shared inventory of 350,000 items. Locating any single item within this inventory takes just 30 seconds. Computer access to the system reaches 200,000 hits per month, with over 60,000 items traded online monthly on average.
"Japanese Manufacturers' Response" In contrast, Japanese manufacturers show little engagement with reuse. Companies like Toyota Motor Corporation, Honda Motor Co., Ltd., Fuji Heavy Industries Ltd., and Isuzu Motors Ltd. are involved in initiatives such as bumper collection and recycling. However, only two manufacturers—Toyota and Honda—currently operate nationwide programs. Even then, these programs focus solely on used bumpers generated by their respective dealer networks.
"Japan's Reuse Market" Consequently, the current Japanese auto parts reuse market is supported by used car dealers (approx. 50,000 stores), auto dismantlers (approx. 5,000 companies), auto repair shops (approx. 60,000 companies), and used parts retailers (approx. 300 companies). Among these, Shimizu Shokai (Kumagaya City: 0485-24-0610) stands out as a rapidly growing pioneer in used auto parts sales, having completely transitioned from being an auto dismantler. "Shimizu Shokai's Initiatives" Shimizu Shokai thoroughly leveraged such support systems, achieving approximately 60 employees and annual sales of ¥1.05 billion in fiscal 1995. Furthermore, sales of ¥1.4 billion are projected for fiscal 1996. The company sells parts directly usable from scrapped vehicles to approximately 10,000 auto repair shops nationwide. Processing around 150 scrapped vehicles monthly, the company currently holds inventory of about 50,000 parts, claiming to stock nearly all parts for vehicles over
five years old.
"Prospects for the Reuse Market" "Reusing and recycling car parts is commonplace in Europe and America. Conditions are gradually improving in Japan too. I believe this market will reach around ¥300 billion in the near future," stated President Nobuo Shimizu. While part reuse in Japan is currently limited to repairing used cars, if it becomes as common as in Europe and America for new cars, the market will likely expand further.
"Reintroducing the NGP Group" Additionally, the activities of the NGP (Nippon Good Parts) Group, established in 1986 as a consortium of industry peers supporting the company's current business operations, are significant. The group currently has 107 member companies, a total of 117 distribution hubs, and possesses an inventory of 350,000 items. Its total annual sales reach ¥18 billion, making it Japan's largest "recycled parts distribution group" and playing a major role in the automotive repair market. One key feature of the group is the use of the online "Super Line" system accessible to all members. While individual member companies might hold only a few thousand items each, consolidating all member inventories online enables the group to instantly access a shared inventory of 350,000 items. Finding a single item from this inventory takes just 30 seconds. Computer access to the system reaches 200,000 times per month. The number of items traded online averages over 60,000
per month.
「日本における廃車とリサイクルの現状」日本では7000万台もの保有台数を記録し、年間で500万台が廃車となっている。現在、その廃車の解体作業の中で最後に残るシュレッダーダストは100万トンにも及ぶ。こうした廃車に伴う廃棄物処理が深刻化する中で、車部品のリサイクル（再資源化）のほか、リユース（再利用）が注目され始めている。
「日本における廃車とリサイクルの現状」日本では7000万台もの保有台数を記録し、年間で500万台が廃車となっている。現在、その廃車の解体作業の中で最後に残るシュレッダーダストは100万トンにも及ぶ。こうした廃車に伴う廃棄物処理が深刻化する中で、車部品のリサイクル（再資源化）のほか、リユース（再利用）が注目され始めている。
「中古部品再利用の現状」しかし、日本では、自動車の補修などに中古部品を再利用する比率は、ヨーロッパで15%、米国では30%以上と比べると、まだ3%（金額にして500億円）程度というのが現状である。
「調査レポートの目的」今回の調査レポートでは廃車処理の一連の過程において最も環境に負荷が少なく、かつ資源を有効に活用するリユースについての現状と展望を報告する。
「ドイツの取り組み」ドイツでは、年間260万台の自動車が廃車となっている現状において、生産段階から部品のリサイクルやリユースに考慮した設計がなされている。中でも、メルセデス・ベンツ社では中古部品が使われている部分を公表し、消費者側もそれを当然のこととして受けとめているという。また、スウェーデンでは、大手損害保険会社「フォルクサム保険会社」が廃車の解体や中古部品の販売を行なう専門子会社「フォルクサムオート」を持ち、積極的な自動車部品のリユースを展開している。
「フィンランドの取り組み」さらにフィンランドでも同様に、VAT損傷車補修センター保険会社をはじめとする3社が共同で、廃車解体・中古部品販売会社「アウトバヒンコキスコス」を経営している。同国はカーメーカーを自国に持たないことから、同社に修理などが直接持ち込まれるため、中古部品の使用比率が圧倒的に高い。同社は事故車・廃車の解体作業も多く、リサイクルパーツの在庫も豊富だ。同社の補修による中古部品の使用率は現在、車1台につき15％だ。これを20％までのシェア向上を目標としている。
「代表的な自動車会社の取り組み」次に、代表的な自動車会社およびわが国の取り組みについて見ると、前出のメルセデス・ベンツ社では、ドイツ国内の販売店約1300カ所で、年間にバッテリー11万個、バンパー5万本、ハブキャップ3万個、窓ガラス17万枚を回収し、それぞれの専門業者により、そのリサイクルかリユースに分別されている。93年11月から、廃棄された部品の回収とリサイクル、リユース促進のための特別な物流システム「メルセデス・リサイクリング・システム」を実施した。このシステムはレンツ・システム・トランスポート社(RST)との提携によって実現したもの。RSTでは現在、廃車の解体と分別をすみやかに行なう実験プラントを稼働している。
「ボルボの取り組み」ボルボ・カー・コーポレーション（スウェーデン）では、94年からリユースのためのパイロットプラントを操業している。98年までに3000台の乗用車を解体し、リユース可能な部品の分類作業を行なうとともに、より効果的なリユースのための技術開発に取り組んでいる。
「BMWジャパンの取り組み」ドイツ自動車会社の日本現地法人の取り組みとして、BMWジャパン（千葉市：043-297-7075)では、94年より廃車の無料引き取りをはじめた。ディーラー経由で回収した廃車は提携業者の姫路工場に運ばれ、解体・仕分けし、リユースやリサイクルできる素材や部品は販売している。まだ、年間100台程度の取り組みだが、80-85％に達する同社各車種の高いリサイクル率が無料を可能にした一因だという。
「メルセデス・ベンツ日本の取り組み」メルセデス・ベンツ日本（港区では、日本において80年から、トランスミッション、エンジン、ギアボックスなどの高価値部品を国内の正規ディーラーから回収し、リユースするシステムを構築している。
「NGPの活動」NGP（日本グッド・パーツ）グループの活動も重要だ。同グループでは、現在加盟会員企業数107社、流通拠点延べ総数は117拠点、商品在庫点数に至っては35万点を所有している。年間総売り上げ高は全体で180億円にも達し、わが国最大の「リサイクル部品流通企業集団」として、自動車補修市場活動に大きな役割を果たしている。同グループの特徴の一つとして、グループ会員全てにオンライン化した「スーパーライン」の活用がある。これは一会員企業だけでは数千点ずつだが、会員全社の在庫をオンライン化することによって、一気にグループの共有在庫35万点を可能とした。35万点の中から1点を選び出す時間はわずか30秒。コンピューターでのアクセスは月間20万回にも上る。オンラインで取引される商品数は月間平均6
万点強だという。
「日本のメーカーの対応」その一方、日本のメーカーのリユースへの対応はほとんどない。トヨタ自動車、本田技研工業、富士重工業、いすゞ自動車などが、バンパーの回収・リサイクルなどに取り組んでいる。しかし、全国規模で実施しているメーカーは、今のところトヨタと本田の2社だけだ。それも、それぞれの系列ディーラーで発生する使用済みバンパーが対象となっている。
「日本のリユース市場」こうしたことから、現在日本の自動車部品のリユースを支えているのは、中古車販売店（約5万店）、自動車解体業者（約5000社）、自動車修理業者（約6万社）、中古部品販売業者（約300社）などだ。その中で急成長しているのが、自動車解体業者から完全転換し、自動車中古部品販売のパイオニア的存在となった清水商会（熊谷市：0485-24-0610) だ。
「清水商会の取り組み」清水商会ではこのようなサポートシステムも徹底活用し、95年度には従業員約60名、年商10億5000万円を計上した。さらに96年度には14億円の売上げが予想されている。同社では、廃車の中からそのまま使用できる部品を全国約1万の自動車修理工場向けに販売している。月に150台前後の廃車を処理し、現在同社が持つ在庫部品点数は約5万点、5年以上前の車のパーツならほとんどのものが揃うという。
「リユース市場の展望」「車の部品のリユースおよびリサイクルは欧米では当たり前。日本でもだんだん条件が整ってきた。近い将来は3000億円ほどの市場になると思います」 （清水信夫社長）という。日本では部品のリユースは中古車の補修に限定されているが、欧米なみに新車にも使用されたりすると、その市場はさらに拡大するだろう。
「NGPグループの再紹介」また、今日の同社の事業経営を支える同業者企業集団として、86年に創設されたNGP（日本グッド・パーツ）グループの活動も重要だ。同グループでは、現在加盟会員企業数107社、流通拠点延べ総数は117拠点、商品在庫点数に至っては35万点を所有している。年間総売り上げ高は全体で180億円にも達し、わが国最大の「リサイクル部品流通企業集団」として、自動車補修市場活動に大きな役割を果たしている。同グループの特徴の一つとして、グループ会員全てにオンライン化した「スーパーライン」の活用がある。これは一会員企業だけでは数千点ずつだが、会員全社の在庫をオンライン化することによって、一気にグループの共有在庫35万点を可能とした。35万点の中から1点を選び出す時間はわずか30秒。コン�
��ューターでのアクセスは月間20万回にも上る。オンラインで取引される商品数は月間平均6万点強だという。
「中古部品再利用の現状」しかし、日本では、自動車の補修などに中古部品を再利用する比率は、ヨーロッパで15%、米国では30%以上と比べると、まだ3%（金額にして500億円）程度というのが現状である。
「調査レポートの目的」今回の調査レポートでは廃車処理の一連の過程において最も環境に負荷が少なく、かつ資源を有効に活用するリユースについての現状と展望を報告する。
「ドイツの取り組み」ドイツでは、年間260万台の自動車が廃車となっている現状において、生産段階から部品のリサイクルやリユースに考慮した設計がなされている。中でも、メルセデス・ベンツ社では中古部品が使われている部分を公表し、消費者側もそれを当然のこととして受けとめているという。また、スウェーデンでは、大手損害保険会社「フォルクサム保険会社」が廃車の解体や中古部品の販売を行なう専門子会社「フォルクサムオート」を持ち、積極的な自動車部品のリユースを展開している。
「フィンランドの取り組み」さらにフィンランドでも同様に、VAT損傷車補修センター保険会社をはじめとする3社が共同で、廃車解体・中古部品販売会社「アウトバヒンコキスコス」を経営している。同国はカーメーカーを自国に持たないことから、同社に修理などが直接持ち込まれるため、中古部品の使用比率が圧倒的に高い。同社は事故車・廃車の解体作業も多く、リサイクルパーツの在庫も豊富だ。同社の補修による中古部品の使用率は現在、車1台につき15％だ。これを20％までのシェア向上を目標としている。
「代表的な自動車会社の取り組み」次に、代表的な自動車会社およびわが国の取り組みについて見ると、前出のメルセデス・ベンツ社では、ドイツ国内の販売店約1300カ所で、年間にバッテリー11万個、バンパー5万本、ハブキャップ3万個、窓ガラス17万枚を回収し、それぞれの専門業者により、そのリサイクルかリユースに分別されている。93年11月から、廃棄された部品の回収とリサイクル、リユース促進のための特別な物流システム「メルセデス・リサイクリング・システム」を実施した。このシステムはレンツ・システム・トランスポート社(RST)との提携によって実現したもの。RSTでは現在、廃車の解体と分別をすみやかに行なう実験プラントを稼働している。
「ボルボの取り組み」ボルボ・カー・コーポレーション（スウェーデン）では、94年からリユースのためのパイロットプラントを操業している。98年までに3000台の乗用車を解体し、リユース可能な部品の分類作業を行なうとともに、より効果的なリユースのための技術開発に取り組んでいる。
「BMWジャパンの取り組み」ドイツ自動車会社の日本現地法人の取り組みとして、BMWジャパン（千葉市：043-297-7075)では、94年より廃車の無料引き取りをはじめた。ディーラー経由で回収した廃車は提携業者の姫路工場に運ばれ、解体・仕分けし、リユースやリサイクルできる素材や部品は販売している。まだ、年間100台程度の取り組みだが、80-85％に達する同社各車種の高いリサイクル率が無料を可能にした一因だという。
「メルセデス・ベンツ日本の取り組み」メルセデス・ベンツ日本（港区では、日本において80年から、トランスミッション、エンジン、ギアボックスなどの高価値部品を国内の正規ディーラーから回収し、リユースするシステムを構築している。
「NGPの活動」NGP（日本グッド・パーツ）グループの活動も重要だ。同グループでは、現在加盟会員企業数107社、流通拠点延べ総数は117拠点、商品在庫点数に至っては35万点を所有している。年間総売り上げ高は全体で180億円にも達し、わが国最大の「リサイクル部品流通企業集団」として、自動車補修市場活動に大きな役割を果たしている。同グループの特徴の一つとして、グループ会員全てにオンライン化した「スーパーライン」の活用がある。これは一会員企業だけでは数千点ずつだが、会員全社の在庫をオンライン化することによって、一気にグループの共有在庫35万点を可能とした。35万点の中から1点を選び出す時間はわずか30秒。コンピューターでのアクセスは月間20万回にも上る。オンラインで取引される商品数は月間平均6
万点強だという。
「日本のメーカーの対応」その一方、日本のメーカーのリユースへの対応はほとんどない。トヨタ自動車、本田技研工業、富士重工業、いすゞ自動車などが、バンパーの回収・リサイクルなどに取り組んでいる。しかし、全国規模で実施しているメーカーは、今のところトヨタと本田の2社だけだ。それも、それぞれの系列ディーラーで発生する使用済みバンパーが対象となっている。
「日本のリユース市場」こうしたことから、現在日本の自動車部品のリユースを支えているのは、中古車販売店（約5万店）、自動車解体業者（約5000社）、自動車修理業者（約6万社）、中古部品販売業者（約300社）などだ。その中で急成長しているのが、自動車解体業者から完全転換し、自動車中古部品販売のパイオニア的存在となった清水商会（熊谷市：0485-24-0610) だ。
「清水商会の取り組み」清水商会ではこのようなサポートシステムも徹底活用し、95年度には従業員約60名、年商10億5000万円を計上した。さらに96年度には14億円の売上げが予想されている。同社では、廃車の中からそのまま使用できる部品を全国約1万の自動車修理工場向けに販売している。月に150台前後の廃車を処理し、現在同社が持つ在庫部品点数は約5万点、5年以上前の車のパーツならほとんどのものが揃うという。
「リユース市場の展望」「車の部品のリユースおよびリサイクルは欧米では当たり前。日本でもだんだん条件が整ってきた。近い将来は3000億円ほどの市場になると思います」 （清水信夫社長）という。日本では部品のリユースは中古車の補修に限定されているが、欧米なみに新車にも使用されたりすると、その市場はさらに拡大するだろう。
「NGPグループの再紹介」また、今日の同社の事業経営を支える同業者企業集団として、86年に創設されたNGP（日本グッド・パーツ）グループの活動も重要だ。同グループでは、現在加盟会員企業数107社、流通拠点延べ総数は117拠点、商品在庫点数に至っては35万点を所有している。年間総売り上げ高は全体で180億円にも達し、わが国最大の「リサイクル部品流通企業集団」として、自動車補修市場活動に大きな役割を果たしている。同グループの特徴の一つとして、グループ会員全てにオンライン化した「スーパーライン」の活用がある。これは一会員企業だけでは数千点ずつだが、会員全社の在庫をオンライン化することによって、一気にグループの共有在庫35万点を可能とした。35万点の中から1点を選び出す時間はわずか30秒。コン�
��ューターでのアクセスは月間20万回にも上る。オンラインで取引される商品数は月間平均6万点強だという。
Tuesday, March 3, 2026
Environmental Damage from Urban Flooding (1990s–2020s) - May 1996 1990s: Urban flooding caused by torrential downpours became frequent in the 1990s, posing challenges nationwide in Japan. The summer of 1994 saw severe water shortages, prompting increased attention to rainwater reuse. In Tokyo, the Sumida Ward Office introduced a 1,000-cubic-meter underground rainwater storage tank, reusing over 30,000 tons of water annually. Additionally, the Tokyo Dome (designed by Takenaka Corporation) collected rainwater from its 36,000-square-meter roof, using 600 cubic meters per day for toilet flushing.
Environmental Damage from Urban Flooding (1990s–2020s) - May 1996 1990s: Urban flooding caused by torrential downpours became frequent in the 1990s, posing challenges nationwide in Japan. The summer of 1994 saw severe water shortages, prompting increased attention to rainwater reuse. In Tokyo, the Sumida Ward Office introduced a 1,000-cubic-meter underground rainwater storage tank, reusing over 30,000 tons of water annually. Additionally, the Tokyo Dome (designed by Takenaka Corporation) collected rainwater from its 36,000-square-meter roof, using 600 cubic meters per day for toilet flushing.
In Fukuoka City, Fukuoka Dome installed a 2,900-cubic-meter rainwater storage tank, utilizing approximately 55,000 cubic meters of rainwater annually for plant irrigation and toilet flushing. These initiatives aimed to balance preventing urban flooding with efficient resource use, though collaboration between local residents and businesses remained a challenge.
2000s: In 2001, Tokyo completed the "Metropolitan Outer Ring Floodway" (Underground Temple), consisting of a 6.3-kilometer tunnel and a massive pressure-regulating reservoir, capable of draining over 500,000 cubic meters of rainwater annually. This facility prevented flooding in approximately 20,000 households during the heavy rains of 2008, achieving significant results.
Osaka City formulated its "Basic Plan for Heavy Rain Countermeasures in Sewers" in 2004, developing drainage capacity to handle rainfall of 70 mm per hour. In 2009, it expanded rainwater storage facilities in the Yodo River basin, increasing total storage capacity to 50,000 cubic meters. Furthermore, collaboration with businesses and research institutions advanced flood prediction technology, contributing to disaster risk reduction.
2010s: Amid frequent extreme weather due to climate change, Tokyo promoted the "Tama River Flood Countermeasure Project." During Typhoon No. 15 in 2011, enhanced drainage pumps minimized damage in the Arakawa River basin. Furthermore, during the 2014 flash floods, Sumida Ward's underground storage basin activated, processing approximately 12,000 cubic meters of rainwater.
In Osaka City, the "Osaka Mega Rainwater Storage System," designed by Takenaka Corporation, began operation in 2015. With a storage capacity of approximately 100,000 cubic meters, it streamlined drainage into Osaka Bay. In Fukuoka City, the storage capacity of the Sannō Retention Pond doubled in 2018, enabling the reuse of 70,000 cubic meters of rainwater annually. This significantly mitigated damage during Typhoon No. 21.
2020s: Since 2020, Tokyo has advanced expansion work on the Metropolitan Outer Floodway. In 2023, new drainage pumps were introduced. Capable of discharging 45 tons of rainwater per minute, these pumps further reduced flood risks for residential areas along the Arakawa River.
Osaka City promoted its "Osaka Mega-Flood Countermeasures" in 2022, increasing the total capacity of its storage tanks to 100 million cubic meters. Furthermore, in collaboration with Daikin Industries, it introduced new rainwater filtration systems. The purified rainwater is now also utilized for urban greening projects.
In Fukuoka City, the "Smart Rainwater Storage System," developed with Daikin's cooperation, was introduced in 2023, achieving an annual reusable rainwater volume of 120,000 cubic meters. This has significantly mitigated flood damage during typhoons and reduced disaster risk.
In Fukuoka City, Fukuoka Dome installed a 2,900-cubic-meter rainwater storage tank, utilizing approximately 55,000 cubic meters of rainwater annually for plant irrigation and toilet flushing. These initiatives aimed to balance preventing urban flooding with efficient resource use, though collaboration between local residents and businesses remained a challenge.
2000s: In 2001, Tokyo completed the "Metropolitan Outer Ring Floodway" (Underground Temple), consisting of a 6.3-kilometer tunnel and a massive pressure-regulating reservoir, capable of draining over 500,000 cubic meters of rainwater annually. This facility prevented flooding in approximately 20,000 households during the heavy rains of 2008, achieving significant results.
Osaka City formulated its "Basic Plan for Heavy Rain Countermeasures in Sewers" in 2004, developing drainage capacity to handle rainfall of 70 mm per hour. In 2009, it expanded rainwater storage facilities in the Yodo River basin, increasing total storage capacity to 50,000 cubic meters. Furthermore, collaboration with businesses and research institutions advanced flood prediction technology, contributing to disaster risk reduction.
2010s: Amid frequent extreme weather due to climate change, Tokyo promoted the "Tama River Flood Countermeasure Project." During Typhoon No. 15 in 2011, enhanced drainage pumps minimized damage in the Arakawa River basin. Furthermore, during the 2014 flash floods, Sumida Ward's underground storage basin activated, processing approximately 12,000 cubic meters of rainwater.
In Osaka City, the "Osaka Mega Rainwater Storage System," designed by Takenaka Corporation, began operation in 2015. With a storage capacity of approximately 100,000 cubic meters, it streamlined drainage into Osaka Bay. In Fukuoka City, the storage capacity of the Sannō Retention Pond doubled in 2018, enabling the reuse of 70,000 cubic meters of rainwater annually. This significantly mitigated damage during Typhoon No. 21.
2020s: Since 2020, Tokyo has advanced expansion work on the Metropolitan Outer Floodway. In 2023, new drainage pumps were introduced. Capable of discharging 45 tons of rainwater per minute, these pumps further reduced flood risks for residential areas along the Arakawa River.
Osaka City promoted its "Osaka Mega-Flood Countermeasures" in 2022, increasing the total capacity of its storage tanks to 100 million cubic meters. Furthermore, in collaboration with Daikin Industries, it introduced new rainwater filtration systems. The purified rainwater is now also utilized for urban greening projects.
In Fukuoka City, the "Smart Rainwater Storage System," developed with Daikin's cooperation, was introduced in 2023, achieving an annual reusable rainwater volume of 120,000 cubic meters. This has significantly mitigated flood damage during typhoons and reduced disaster risk.
都市型洪水による環境被害（1990年代～2020年代）-1996年5月
都市型洪水による環境被害（1990年代～2020年代）-1996年5月
1990年代：
集中豪雨による都市型洪水は1990年代に入ってから頻発し、日本全国で課題となりました。1994年の夏には深刻な水不足があり、雨水の再利用が注目され始めました。東京では墨田区庁舎が地下1000立方メートルの雨水貯留タンクを導入し、年間3万トン以上の水を再利用していました。また、東京ドーム（竹中工務店設計）では3万6000平方メートルの屋根から雨水を集水し、1日600立方メートルをトイレ洗浄水として利用していました。
福岡市では福岡ドームが2900立方メートルの雨水貯留タンクを導入し、年間約5.5万立方メートルの雨水を植栽散水や便器洗浄に活用しました。こうした取り組みは、都市型洪水の防止と資源の有効活用の両立を目指して実施されましたが、地域住民や企業間での連携が課題として残されました。
2000年代：
2001年、東京都が完成させた「首都圏外郭放水路」（地下神殿）は、全長6.3kmのトンネルと巨大な調圧水槽から成り、年間50万立方メートル以上の雨水を排水可能としました。この施設は、2008年の豪雨時に約2万世帯の浸水を防ぎ、大きな成果を上げました。
大阪市では、2004年に「下水道豪雨対策基本計画」を策定し、1時間あたり70mmの降雨に対応する排水能力を整備。2009年には淀川流域に雨水貯留施設を増設し、合計貯留能力を5万立方メートルまで拡張しました。さらに、企業や研究機関との連携で洪水予測技術が進化し、災害リスクの軽減に貢献しました。
2010年代：
気候変動の影響で異常気象が頻発する中、東京都は「多摩川浸水対策プロジェクト」を推進。2011年の台風15号では、排水ポンプの強化により荒川流域の被害を最小限に抑えました。また、2014年のゲリラ豪雨では、墨田区の地下調整池が稼働し、約1.2万立方メートルの雨水を処理しました。
大阪市では2015年、竹中工務店が設計した「大阪メガ雨水貯留システム」が稼働を開始。約10万立方メートルの貯水能力を持ち、大阪湾への排水を効率化しました。福岡市では2018年、山王調整池の貯留能力が倍増し、年間7万立方メートルの雨水を再利用。これにより、台風21号時の被害を大幅に軽減しました。
2020年代：
2020年以降、東京都では首都圏外郭放水路の拡張工事が進められ、2023年には新型排水ポンプが導入されました。このポンプは1分間で45トンの雨水を排水でき、荒川沿いの住宅地の洪水リスクをさらに低減させました。
大阪市は2022年に「大阪メガフラッド対策」を推進し、貯留タンクの総容量を1億立方メートルに増強。さらに、ダイキン工業と連携し、新型雨水ろ過装置を導入。これにより浄化された雨水は都市緑化事業にも活用されています。
福岡市では2023年、ダイキンの協力で開発された「スマート雨水貯留システム」が導入され、再利用可能な雨水量が年間12万立方メートルに達しました。これにより、台風時の洪水被害が大幅に軽減され、災害リスクが低下しています。
1990年代：
集中豪雨による都市型洪水は1990年代に入ってから頻発し、日本全国で課題となりました。1994年の夏には深刻な水不足があり、雨水の再利用が注目され始めました。東京では墨田区庁舎が地下1000立方メートルの雨水貯留タンクを導入し、年間3万トン以上の水を再利用していました。また、東京ドーム（竹中工務店設計）では3万6000平方メートルの屋根から雨水を集水し、1日600立方メートルをトイレ洗浄水として利用していました。
福岡市では福岡ドームが2900立方メートルの雨水貯留タンクを導入し、年間約5.5万立方メートルの雨水を植栽散水や便器洗浄に活用しました。こうした取り組みは、都市型洪水の防止と資源の有効活用の両立を目指して実施されましたが、地域住民や企業間での連携が課題として残されました。
2000年代：
2001年、東京都が完成させた「首都圏外郭放水路」（地下神殿）は、全長6.3kmのトンネルと巨大な調圧水槽から成り、年間50万立方メートル以上の雨水を排水可能としました。この施設は、2008年の豪雨時に約2万世帯の浸水を防ぎ、大きな成果を上げました。
大阪市では、2004年に「下水道豪雨対策基本計画」を策定し、1時間あたり70mmの降雨に対応する排水能力を整備。2009年には淀川流域に雨水貯留施設を増設し、合計貯留能力を5万立方メートルまで拡張しました。さらに、企業や研究機関との連携で洪水予測技術が進化し、災害リスクの軽減に貢献しました。
2010年代：
気候変動の影響で異常気象が頻発する中、東京都は「多摩川浸水対策プロジェクト」を推進。2011年の台風15号では、排水ポンプの強化により荒川流域の被害を最小限に抑えました。また、2014年のゲリラ豪雨では、墨田区の地下調整池が稼働し、約1.2万立方メートルの雨水を処理しました。
大阪市では2015年、竹中工務店が設計した「大阪メガ雨水貯留システム」が稼働を開始。約10万立方メートルの貯水能力を持ち、大阪湾への排水を効率化しました。福岡市では2018年、山王調整池の貯留能力が倍増し、年間7万立方メートルの雨水を再利用。これにより、台風21号時の被害を大幅に軽減しました。
2020年代：
2020年以降、東京都では首都圏外郭放水路の拡張工事が進められ、2023年には新型排水ポンプが導入されました。このポンプは1分間で45トンの雨水を排水でき、荒川沿いの住宅地の洪水リスクをさらに低減させました。
大阪市は2022年に「大阪メガフラッド対策」を推進し、貯留タンクの総容量を1億立方メートルに増強。さらに、ダイキン工業と連携し、新型雨水ろ過装置を導入。これにより浄化された雨水は都市緑化事業にも活用されています。
福岡市では2023年、ダイキンの協力で開発された「スマート雨水貯留システム」が導入され、再利用可能な雨水量が年間12万立方メートルに達しました。これにより、台風時の洪水被害が大幅に軽減され、災害リスクが低下しています。
Food Bank Development - Status in the 2020s (October 2020) In the 2020s, as concerns over environmental pollution and food safety increased, the role of Japan's food bank became even more critical. In particular, the accumulation of heavy metals and dioxins in food products due to environmental pollution has become a major issue, and monitoring systems across the country have been strengthened.
Food Bank Development - Status in the 2020s (October 2020) In the 2020s, as concerns over environmental pollution and food safety increased, the role of Japan's food bank became even more critical. In particular, the accumulation of heavy metals and dioxins in food products due to environmental pollution has become a major issue, and monitoring systems across the country have been strengthened.
For example, in Fukushima Prefecture, after the 2011 nuclear disaster, the influence of radioactive cesium-137 remains, and strict safety inspections of agricultural and marine products are ongoing. Only products that meet strict standards based on radiation tests are allowed to be distributed in the market.
Additionally, in Ise Bay, Mie Prefecture, mercury and cadmium pollution from industrial wastewater is a serious concern, and monitoring of marine products continues. The national food bank network collaborates to freeze food samples and conduct regular analyses.
Companies such as Nichirei, known for their freezing technology, and Marubeni, a general trading company, actively contribute to this initiative by providing cutting-edge freezing equipment. Nichirei, in particular, has introduced ultra-low temperature freezing technology at -60°C, ensuring long-term food preservation. This technology enhances efforts to reduce food waste while ensuring food safety.
Moreover, the government and corporations have implemented blockchain technology to manage food bank data, improving traceability and ensuring swift detection and response to food affected by contaminants. In 2020, approximately 1.5 million tons of food were managed through the food bank, contributing to food safety and the establishment of a sustainable food system.
For example, in Fukushima Prefecture, after the 2011 nuclear disaster, the influence of radioactive cesium-137 remains, and strict safety inspections of agricultural and marine products are ongoing. Only products that meet strict standards based on radiation tests are allowed to be distributed in the market.
Additionally, in Ise Bay, Mie Prefecture, mercury and cadmium pollution from industrial wastewater is a serious concern, and monitoring of marine products continues. The national food bank network collaborates to freeze food samples and conduct regular analyses.
Companies such as Nichirei, known for their freezing technology, and Marubeni, a general trading company, actively contribute to this initiative by providing cutting-edge freezing equipment. Nichirei, in particular, has introduced ultra-low temperature freezing technology at -60°C, ensuring long-term food preservation. This technology enhances efforts to reduce food waste while ensuring food safety.
Moreover, the government and corporations have implemented blockchain technology to manage food bank data, improving traceability and ensuring swift detection and response to food affected by contaminants. In 2020, approximately 1.5 million tons of food were managed through the food bank, contributing to food safety and the establishment of a sustainable food system.
Food Bank Development - Status in the 2020s (October 2020)
Food Bank Development - Status in the 2020s (October 2020)
In the 2020s, as concerns over environmental pollution and food safety increased, the role of Japan's food bank became even more critical. In particular, the accumulation of heavy metals and dioxins in food products due to environmental pollution has become a major issue, and monitoring systems across the country have been strengthened.
For example, in Fukushima Prefecture, after the 2011 nuclear disaster, the influence of radioactive cesium-137 remains, and strict safety inspections of agricultural and marine products are ongoing. Only products that meet strict standards based on radiation tests are allowed to be distributed in the market.
Additionally, in Ise Bay, Mie Prefecture, mercury and cadmium pollution from industrial wastewater is a serious concern, and monitoring of marine products continues. The national food bank network collaborates to freeze food samples and conduct regular analyses.
Companies such as Nichirei, known for their freezing technology, and Marubeni, a general trading company, actively contribute to this initiative by providing cutting-edge freezing equipment. Nichirei, in particular, has introduced ultra-low temperature freezing technology at -60°C, ensuring long-term food preservation. This technology enhances efforts to reduce food waste while ensuring food safety.
Moreover, the government and corporations have implemented blockchain technology to manage food bank data, improving traceability and ensuring swift detection and response to food affected by contaminants. In 2020, approximately 1.5 million tons of food were managed through the food bank, contributing to food safety and the establishment of a sustainable food system.
In the 2020s, as concerns over environmental pollution and food safety increased, the role of Japan's food bank became even more critical. In particular, the accumulation of heavy metals and dioxins in food products due to environmental pollution has become a major issue, and monitoring systems across the country have been strengthened.
For example, in Fukushima Prefecture, after the 2011 nuclear disaster, the influence of radioactive cesium-137 remains, and strict safety inspections of agricultural and marine products are ongoing. Only products that meet strict standards based on radiation tests are allowed to be distributed in the market.
Additionally, in Ise Bay, Mie Prefecture, mercury and cadmium pollution from industrial wastewater is a serious concern, and monitoring of marine products continues. The national food bank network collaborates to freeze food samples and conduct regular analyses.
Companies such as Nichirei, known for their freezing technology, and Marubeni, a general trading company, actively contribute to this initiative by providing cutting-edge freezing equipment. Nichirei, in particular, has introduced ultra-low temperature freezing technology at -60°C, ensuring long-term food preservation. This technology enhances efforts to reduce food waste while ensuring food safety.
Moreover, the government and corporations have implemented blockchain technology to manage food bank data, improving traceability and ensuring swift detection and response to food affected by contaminants. In 2020, approximately 1.5 million tons of food were managed through the food bank, contributing to food safety and the establishment of a sustainable food system.
Monday, March 2, 2026
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"Toward a Lake Kasumigaura Where You Can Swim" - The Challenge from 2007 to the 2020s In 2007, Ibaraki Prefecture announced a plan to improve Lake Kasumigaura's water quality, adopting "Toward a Lake Kasumigaura Where You Can Swim" as its theme in the Environmental White Paper. At that time, Lake Kasumigaura was suffering from advanced eutrophication, and blue-green algae blooms were severely impacting the lake's ecosystem and local residents. With five lakes in the prefecture failing to meet environmental standards, improving Lake Kasumigaura was positioned as an urgent priority. Ibaraki Prefecture strengthened discharge regulations, improved water circulation, and advanced proper management of domestic and agricultural wastewater, fostering collaboration with local residents and businesses. The "Lake Kasumigaura Basin Comprehensive Water Quality Improvement Project" is ongoing into the 2020s. Although sewage treatment coverage has reached over 90%, the inflow of untreated w
astewater remains a challenge. The introduction of environmentally conscious pesticides developed by Sumitomo Chemical Co., Ltd. and new river monitoring technologies is advancing. Furthermore, the Ministry of the Environment and Ibaraki Prefecture are considering further regulatory tightening to address nitrite nitrogen concentrations exceeding environmental standards in the Kita-Ura Basin.
Improving Lake Kasumigaura directly impacts the health and economic development of the local community, and efforts to realize a "Lake Kasumigaura where you can swim" continue. --- Related Information Sources 1. "Water Quality of Lake Kasumigaura" (Ibaraki Prefecture Kasumigaura Environmental Science Center) *Provides detailed information on the current status and challenges of improving Lake Kasumigaura's water quality.*
2. "Comprehensive Water Quality Improvement Measures for the Kasumigaura Basin" (Ibaraki Prefecture Environmental Policy Division) *Outlines policies and specific measures for achieving water quality standards.* 3. "Reducing Environmental Impact in Kasumigaura Basin Agriculture" (Sumitomo Chemical Co., Ltd.) *Introduces case studies and effects of introducing environmentally considerate pesticides.*
astewater remains a challenge. The introduction of environmentally conscious pesticides developed by Sumitomo Chemical Co., Ltd. and new river monitoring technologies is advancing. Furthermore, the Ministry of the Environment and Ibaraki Prefecture are considering further regulatory tightening to address nitrite nitrogen concentrations exceeding environmental standards in the Kita-Ura Basin.
Improving Lake Kasumigaura directly impacts the health and economic development of the local community, and efforts to realize a "Lake Kasumigaura where you can swim" continue. --- Related Information Sources 1. "Water Quality of Lake Kasumigaura" (Ibaraki Prefecture Kasumigaura Environmental Science Center) *Provides detailed information on the current status and challenges of improving Lake Kasumigaura's water quality.*
2. "Comprehensive Water Quality Improvement Measures for the Kasumigaura Basin" (Ibaraki Prefecture Environmental Policy Division) *Outlines policies and specific measures for achieving water quality standards.* 3. "Reducing Environmental Impact in Kasumigaura Basin Agriculture" (Sumitomo Chemical Co., Ltd.) *Introduces case studies and effects of introducing environmentally considerate pesticides.*
「泳げる霞ヶ浦を目指して」-2007年から2020年代までの挑戦
「泳げる霞ヶ浦を目指して」-2007年から2020年代までの挑戦
茨城県は2007年に環境白書で「泳げる霞ヶ浦を目指して」をテーマに掲げ、霞ヶ浦の水質改善に取り組む計画を発表しました。当時の霞ヶ浦は富栄養化が進行し、アオコの発生が湖の生態系と地域住民に深刻な影響を与えていました。環境基準を満たせない湖沼が県内に5カ所存在し、霞ヶ浦の改善は緊急の課題として位置付けられました。茨城県は排水規制の強化、水循環の改善、生活排水や農業排水の適切な管理を進め、地域住民や企業との連携を図りました。
2020年代には「霞ヶ浦流域総合水質改善プロジェクト」が進行中です。下水処理普及率は90％以上に達したものの、未処理排水の流入が課題として残っています。住友化学株式会社が開発した環境配慮型農薬や、新たな河川モニタリング技術の導入が進められています。また、環境省や茨城県は北浦流域の亜硝酸性窒素濃度の環境基準超過に対応するため、さらなる規制強化を検討しています。
霞ヶ浦の改善は地域社会の健康と経済の発展に直結しており、「泳げる霞ヶ浦」を実現するための取り組みは継続しています。
---
関連情報源
1. 「霞ヶ浦の水質」（茨城県霞ケ浦環境科学センター）
*霞ヶ浦の水質改善の現状や課題について詳述しています。*
2. 「霞ヶ浦流域の総合的水質改善策」（茨城県環境政策課）
*水質基準達成のための政策や具体的な施策が記載されています。*
3. 「霞ヶ浦流域農業における環境負荷軽減」（住友化学株式会社）
*環境配慮型農薬の導入事例や効果が紹介されています。*
茨城県は2007年に環境白書で「泳げる霞ヶ浦を目指して」をテーマに掲げ、霞ヶ浦の水質改善に取り組む計画を発表しました。当時の霞ヶ浦は富栄養化が進行し、アオコの発生が湖の生態系と地域住民に深刻な影響を与えていました。環境基準を満たせない湖沼が県内に5カ所存在し、霞ヶ浦の改善は緊急の課題として位置付けられました。茨城県は排水規制の強化、水循環の改善、生活排水や農業排水の適切な管理を進め、地域住民や企業との連携を図りました。
2020年代には「霞ヶ浦流域総合水質改善プロジェクト」が進行中です。下水処理普及率は90％以上に達したものの、未処理排水の流入が課題として残っています。住友化学株式会社が開発した環境配慮型農薬や、新たな河川モニタリング技術の導入が進められています。また、環境省や茨城県は北浦流域の亜硝酸性窒素濃度の環境基準超過に対応するため、さらなる規制強化を検討しています。
霞ヶ浦の改善は地域社会の健康と経済の発展に直結しており、「泳げる霞ヶ浦」を実現するための取り組みは継続しています。
---
関連情報源
1. 「霞ヶ浦の水質」（茨城県霞ケ浦環境科学センター）
*霞ヶ浦の水質改善の現状や課題について詳述しています。*
2. 「霞ヶ浦流域の総合的水質改善策」（茨城県環境政策課）
*水質基準達成のための政策や具体的な施策が記載されています。*
3. 「霞ヶ浦流域農業における環境負荷軽減」（住友化学株式会社）
*環境配慮型農薬の導入事例や効果が紹介されています。*
History of Satoyama Conservation Activities and Regional Revitalization - Hisaya District, Matsuyama City, Ehime Prefecture In 2001, the Hisaya Satoyama Conservation Project began in the Hisaya district of Matsuyama City, Ehime Prefecture. Its goals were to restore the deteriorating satoyama landscape and revitalize the local community. This project was developed through cooperation between the local company Matsuyama Environmental Development Co., Ltd. and residents, aiming for sustainable development.
History of Satoyama Conservation Activities and Regional Revitalization - Hisaya District, Matsuyama City, Ehime Prefecture In 2001, the Hisaya Satoyama Conservation Project began in the Hisaya district of Matsuyama City, Ehime Prefecture. Its goals were to restore the deteriorating satoyama landscape and revitalize the local community. This project was developed through cooperation between the local company Matsuyama Environmental Development Co., Ltd. and residents, aiming for sustainable development.
Initial activities included planting 5,000 broadleaf and coniferous trees annually and implementing the "River Guardians" program to improve the water quality of the clear-flowing Ishite River. By the early 2010s, the planted area reached 50 hectares, showing signs of ecosystem recovery, such as the return of wild boars and raccoon dogs. Furthermore, production of the local specialty "Kutani Tea" increased by 30%, and visitor numbers to the tourist farm exceeded 20,000 annually. Entering the 2020s, the initiative expanded further. The cumulative number of trees planted surpassed 200,000, and the target area expanded to over 100 hectares. Moreover, the COD (Chemical Oxygen Demand) of the Ishite River improved to 7mg/L, and the arrival of fireflies gained attention as a tourist attraction. In 2019, the number of tourists reached 35,000 annually, with 5,000 visitors participating in nature experience programs at the newly established "Kutani Ecotourism Center."
However, challenges for the 2020s have also emerged. Frequent abnormal weather events due to climate change caused 3% of the planted area to be lost to landslides. Additionally, the proliferation of the invasive species, Japanese knotweed, and a decline in volunteer numbers due to the aging local population present challenges. To address this, Matsuyama Environmental Development Co., Ltd. has introduced tree-planting support robots utilizing AI technology, initiating efforts to streamline activities across the entire region. Furthermore, the "Kutani Future Fund" has been established to strengthen the foundation of activities while soliciting donations nationwide. For over 20 years, satoyama conservation activities in the Kutani area have pursued sustainable development and achieved significant results. The 2020s mark a crucial phase where, building on the success of nature conservation, new challenges are being overcome while local residents and businesses collaborate to forg
e a path forward.
Initial activities included planting 5,000 broadleaf and coniferous trees annually and implementing the "River Guardians" program to improve the water quality of the clear-flowing Ishite River. By the early 2010s, the planted area reached 50 hectares, showing signs of ecosystem recovery, such as the return of wild boars and raccoon dogs. Furthermore, production of the local specialty "Kutani Tea" increased by 30%, and visitor numbers to the tourist farm exceeded 20,000 annually. Entering the 2020s, the initiative expanded further. The cumulative number of trees planted surpassed 200,000, and the target area expanded to over 100 hectares. Moreover, the COD (Chemical Oxygen Demand) of the Ishite River improved to 7mg/L, and the arrival of fireflies gained attention as a tourist attraction. In 2019, the number of tourists reached 35,000 annually, with 5,000 visitors participating in nature experience programs at the newly established "Kutani Ecotourism Center."
However, challenges for the 2020s have also emerged. Frequent abnormal weather events due to climate change caused 3% of the planted area to be lost to landslides. Additionally, the proliferation of the invasive species, Japanese knotweed, and a decline in volunteer numbers due to the aging local population present challenges. To address this, Matsuyama Environmental Development Co., Ltd. has introduced tree-planting support robots utilizing AI technology, initiating efforts to streamline activities across the entire region. Furthermore, the "Kutani Future Fund" has been established to strengthen the foundation of activities while soliciting donations nationwide. For over 20 years, satoyama conservation activities in the Kutani area have pursued sustainable development and achieved significant results. The 2020s mark a crucial phase where, building on the success of nature conservation, new challenges are being overcome while local residents and businesses collaborate to forg
e a path forward.
里山保護活動の歴史と地域再生の歩み - 愛媛県松山市久谷地区
里山保護活動の歴史と地域再生の歩み - 愛媛県松山市久谷地区
2001年、愛媛県松山市久谷地区では、荒廃が進む里山の再生と地域活性化を目的とした「久谷里山保全プロジェクト」がスタートしました。このプロジェクトは、地元企業「松山環境開発株式会社」と地域住民が協力し、持続可能な発展を目指して展開されました。
当初の活動では、毎年5000本の広葉樹や針葉樹の植樹が行われ、清流石手川の水質改善を目指した「川の守り隊」プログラムが実施されました。2001年から2010年代初頭までに、植樹面積は50ヘクタールに達し、イノシシやタヌキなどが復活するなど、生態系の回復が見られました。さらに、地域特産品「久谷茶」の生産量が3割増加し、観光農園の来訪者数は年間2万人を超える成果を上げました。
2020年代に入ると、この活動はさらに拡大。植樹本数は累計20万本を超え、対象区域は100ヘクタール以上に拡大しました。また、石手川のCOD（化学的酸素要求量）は7mg/Lに改善され、ホタルの飛来が観光資源として注目されるようになりました。2019年の観光客数は年間35000人に達し、新設された「久谷エコツーリズムセンター」では、年間5000名の観光客が自然体験プログラムに参加しています。
一方で、2020年代の課題も顕在化しています。気候変動の影響で頻発する異常気象により、植樹地の3%が土砂崩れで失われました。また、外来種アレチウリの繁殖や地域住民の高齢化に伴うボランティア数の減少が課題となっています。これに対応するため、「松山環境開発株式会社」はAI技術を活用した植樹支援ロボットを導入し、地域全体の活動を効率化する取り組みを開始。また、「久谷未来基金」を設立し、全国から寄付金を募りながら活動基盤を強化しています。
久谷地区での里山保護活動は、20年以上にわたり持続可能な発展を追求し、多くの成果を上げてきました。2020年代は、自然保護の成功を基盤に新たな課題を克服しつつ、地域住民と企業が連携して未来を切り開く重要な局面を迎えています。
2001年、愛媛県松山市久谷地区では、荒廃が進む里山の再生と地域活性化を目的とした「久谷里山保全プロジェクト」がスタートしました。このプロジェクトは、地元企業「松山環境開発株式会社」と地域住民が協力し、持続可能な発展を目指して展開されました。
当初の活動では、毎年5000本の広葉樹や針葉樹の植樹が行われ、清流石手川の水質改善を目指した「川の守り隊」プログラムが実施されました。2001年から2010年代初頭までに、植樹面積は50ヘクタールに達し、イノシシやタヌキなどが復活するなど、生態系の回復が見られました。さらに、地域特産品「久谷茶」の生産量が3割増加し、観光農園の来訪者数は年間2万人を超える成果を上げました。
2020年代に入ると、この活動はさらに拡大。植樹本数は累計20万本を超え、対象区域は100ヘクタール以上に拡大しました。また、石手川のCOD（化学的酸素要求量）は7mg/Lに改善され、ホタルの飛来が観光資源として注目されるようになりました。2019年の観光客数は年間35000人に達し、新設された「久谷エコツーリズムセンター」では、年間5000名の観光客が自然体験プログラムに参加しています。
一方で、2020年代の課題も顕在化しています。気候変動の影響で頻発する異常気象により、植樹地の3%が土砂崩れで失われました。また、外来種アレチウリの繁殖や地域住民の高齢化に伴うボランティア数の減少が課題となっています。これに対応するため、「松山環境開発株式会社」はAI技術を活用した植樹支援ロボットを導入し、地域全体の活動を効率化する取り組みを開始。また、「久谷未来基金」を設立し、全国から寄付金を募りながら活動基盤を強化しています。
久谷地区での里山保護活動は、20年以上にわたり持続可能な発展を追求し、多くの成果を上げてきました。2020年代は、自然保護の成功を基盤に新たな課題を克服しつつ、地域住民と企業が連携して未来を切り開く重要な局面を迎えています。
Nara Washington Hotel Plaza (Nara City, JR Nara Station Front)
Nara Washington Hotel Plaza (Nara City, JR Nara Station Front)
Opened on April 18, 2000, the Nara Washington Hotel Plaza is a hotel committed to environmental measures. It generates all its own electricity and hot water, utilizing a micro-gas turbine cogeneration system. Environmentally conscious design features include the use of porcelain tiles made from recycled sludge on the exterior walls and eco-friendly wallpaper that does not emit volatile organic compounds in the lobby and guest rooms.
### Related Information (Current) The Nara Washington Hotel Plaza is conveniently located for both tourism and business, about a 5-minute walk from JR Nara Station's East Exit and about a 10-minute walk from Kintetsu Nara Station's Exit 4. The hotel is situated along Sanjo Street, surrounded by numerous restaurants and shops. It also offers easy access to tourist spots like Nara Park and Todaiji Temple.
The hotel offers 203 guest rooms, each equipped with complimentary Wi-Fi, a flat-screen TV, refrigerator, and trouser press. The on-site restaurant, "Ginza Hachō," serves a variety of dishes including charcoal-grilled items and shabu-shabu. The hotel parking lot accommodates up to 20 vehicles on a first-come, first-served basis, available for ¥1,400 per night (from 2:00 PM to 10:00 AM the following morning). If full, guests are directed to nearby contracted parking facilities.
The Washington Hotel Group implements various initiatives to reduce environmental impact, including minimizing disposable amenities and restricting plastic product usage. Furthermore, the hotel is registered as a facility for accommodating stranded travelers during disasters, contributing to the local community. For details and reservations, please check the official website.
Opened on April 18, 2000, the Nara Washington Hotel Plaza is a hotel committed to environmental measures. It generates all its own electricity and hot water, utilizing a micro-gas turbine cogeneration system. Environmentally conscious design features include the use of porcelain tiles made from recycled sludge on the exterior walls and eco-friendly wallpaper that does not emit volatile organic compounds in the lobby and guest rooms.
### Related Information (Current) The Nara Washington Hotel Plaza is conveniently located for both tourism and business, about a 5-minute walk from JR Nara Station's East Exit and about a 10-minute walk from Kintetsu Nara Station's Exit 4. The hotel is situated along Sanjo Street, surrounded by numerous restaurants and shops. It also offers easy access to tourist spots like Nara Park and Todaiji Temple.
The hotel offers 203 guest rooms, each equipped with complimentary Wi-Fi, a flat-screen TV, refrigerator, and trouser press. The on-site restaurant, "Ginza Hachō," serves a variety of dishes including charcoal-grilled items and shabu-shabu. The hotel parking lot accommodates up to 20 vehicles on a first-come, first-served basis, available for ¥1,400 per night (from 2:00 PM to 10:00 AM the following morning). If full, guests are directed to nearby contracted parking facilities.
The Washington Hotel Group implements various initiatives to reduce environmental impact, including minimizing disposable amenities and restricting plastic product usage. Furthermore, the hotel is registered as a facility for accommodating stranded travelers during disasters, contributing to the local community. For details and reservations, please check the official website.
### 奈良ワシントンホテルプラザ（奈良市・JR奈良駅前）
### 奈良ワシントンホテルプラザ（奈良市・JR奈良駅前）
2000年4月18日にオープンした「奈良ワシントンホテルプラザ」は、環境対策に力を入れているホテルです。館内の電力や給湯はすべて自給し、マイクロガスタービン式のコージェネレーションシステムを導入しています。外壁には汚泥をリサイクルした磁器タイルを使用し、ロビーや客室の壁には揮発性有機物質を発生しないエコクロスを採用するなど、環境に配慮した設計が施されています。
### 関連情報（現在）
奈良ワシントンホテルプラザは、JR奈良駅東口から徒歩約5分、近鉄奈良駅4番出口から徒歩約10分の立地にあり、観光やビジネスに便利です。ホテルは三条通り沿いに位置し、周辺には飲食店やショップが多数あります。また、奈良公園や東大寺などの観光スポットへもアクセスしやすくなっています。
客室は全203室あり、無料Wi-Fi 薄型テレビ 冷蔵庫 ズボンプレッサーなどが完備されています。館内にはレストラン「銀座八丁」があり、炭火焼やしゃぶしゃぶなど多彩な料理を提供しています。ホテル駐車場は先着20台で、1泊1400円（14時～翌朝10時）で利用できます。満車の場合は、近隣の契約駐車場を案内しています。
ワシントンホテルグループでは、環境負荷低減のために使い捨てアメニティの削減やプラスチック製品の使用抑制など、さまざまな取り組みを行っています。さらに、災害時には帰宅困難者受け入れ施設としての登録もされており、地域社会への貢献も行っています。
詳細や予約については、公式サイトをご確認ください。
2000年4月18日にオープンした「奈良ワシントンホテルプラザ」は、環境対策に力を入れているホテルです。館内の電力や給湯はすべて自給し、マイクロガスタービン式のコージェネレーションシステムを導入しています。外壁には汚泥をリサイクルした磁器タイルを使用し、ロビーや客室の壁には揮発性有機物質を発生しないエコクロスを採用するなど、環境に配慮した設計が施されています。
### 関連情報（現在）
奈良ワシントンホテルプラザは、JR奈良駅東口から徒歩約5分、近鉄奈良駅4番出口から徒歩約10分の立地にあり、観光やビジネスに便利です。ホテルは三条通り沿いに位置し、周辺には飲食店やショップが多数あります。また、奈良公園や東大寺などの観光スポットへもアクセスしやすくなっています。
客室は全203室あり、無料Wi-Fi 薄型テレビ 冷蔵庫 ズボンプレッサーなどが完備されています。館内にはレストラン「銀座八丁」があり、炭火焼やしゃぶしゃぶなど多彩な料理を提供しています。ホテル駐車場は先着20台で、1泊1400円（14時～翌朝10時）で利用できます。満車の場合は、近隣の契約駐車場を案内しています。
ワシントンホテルグループでは、環境負荷低減のために使い捨てアメニティの削減やプラスチック製品の使用抑制など、さまざまな取り組みを行っています。さらに、災害時には帰宅困難者受け入れ施設としての登録もされており、地域社会への貢献も行っています。
詳細や予約については、公式サイトをご確認ください。
Sunday, March 1, 2026
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**Hachijo Island's Food Waste Recycling Initiative - History and Current Status** --- **1998: Beginning of the Recycling Project** In 1998, Hachijo Island in Tokyo began a food waste recycling initiative aimed at utilizing regional resources and reducing the burden of waste disposal. This project started as a pilot test involving 270 households in the city housing complex, establishing a system to compost approximately 300 tons of food waste annually. At the composting facility, microorganisms were used to decompose food waste, producing organic fertilizer distributed to local farmers. This compost was utilized in the cultivation of specialty products such as potatoes and tomatoes, balancing agricultural economics and environmental conservation.
The composting process employed a high-efficiency decomposition device developed by Kankyo Techno Co., Ltd., which reduced processing time and improved treatment capacity. At this stage, the goal was to process 20% of the food waste into compost, laying the foundation for a sustainable living environment. --- **2010s: Establishing a Circular Society and Collaboration with Tourism**
In the 2010s, Hachijo Island's recycling project evolved into efforts to establish a circular society across the region. In 2015, the composting facility was expanded, increasing its processing capacity to 800 tons annually. While tourism supported the island's economy, the increase in tourists presented challenges in waste management, leading to the full-scale collection of food waste from tourist facilities and restaurants.
During this period, local use of compost was further promoted, benefiting not only farmers but also school and public facility greening projects. Additionally, Hachijo Island was selected for the "Island Environment Model Project" led by the Tokyo Metropolitan Government, enhancing collaboration with municipalities and companies. The reduction of chemical fertilizer usage through composting was achieved island-wide, balancing environmental and economic benefits.
--- **2020s: Expansion and Technological Advancement**
In the 2020s, Hachijo Island's food waste recycling initiative achieved further advancements. The project expanded to cover the entire island, with an annual capacity to process approximately 1000 tons of food waste. The composting facility adopted the latest decomposition equipment developed by Kankyo Techno Co., Ltd., enabling processing times to be halved and supporting an annual capacity of 1500 tons.
The use of compost reduced chemical fertilizer usage by 25% annually, easing the financial burden on farmers. It also improved the quality of Hachijo Island's specialty products, including potatoes and tomatoes. Furthermore, food waste from tourist facilities and restaurants, accounting for an additional 200 tons annually, was newly targeted, raising the total processing volume to approximately 1200 tons per year.
This initiative, led by the Hachijo Island Town Office in collaboration with the Tokyo Metropolitan Government, has gained recognition as a model case for regional societies. Plans for expansion to neighboring Izu Islands are also being considered, spreading efforts toward a sustainable society. --- **Conclusion**
Since its inception in 1998, Hachijo Island's food waste recycling initiative has expanded in scale and advanced technologically. In the 2010s, it strengthened collaboration with the tourism sector and established the foundation for a circular society. By the 2020s, it further expanded its scope, emerging as a success story in achieving a sustainable regional society. Prospects for expansion to other areas continue to grow.
The composting process employed a high-efficiency decomposition device developed by Kankyo Techno Co., Ltd., which reduced processing time and improved treatment capacity. At this stage, the goal was to process 20% of the food waste into compost, laying the foundation for a sustainable living environment. --- **2010s: Establishing a Circular Society and Collaboration with Tourism**
In the 2010s, Hachijo Island's recycling project evolved into efforts to establish a circular society across the region. In 2015, the composting facility was expanded, increasing its processing capacity to 800 tons annually. While tourism supported the island's economy, the increase in tourists presented challenges in waste management, leading to the full-scale collection of food waste from tourist facilities and restaurants.
During this period, local use of compost was further promoted, benefiting not only farmers but also school and public facility greening projects. Additionally, Hachijo Island was selected for the "Island Environment Model Project" led by the Tokyo Metropolitan Government, enhancing collaboration with municipalities and companies. The reduction of chemical fertilizer usage through composting was achieved island-wide, balancing environmental and economic benefits.
--- **2020s: Expansion and Technological Advancement**
In the 2020s, Hachijo Island's food waste recycling initiative achieved further advancements. The project expanded to cover the entire island, with an annual capacity to process approximately 1000 tons of food waste. The composting facility adopted the latest decomposition equipment developed by Kankyo Techno Co., Ltd., enabling processing times to be halved and supporting an annual capacity of 1500 tons.
The use of compost reduced chemical fertilizer usage by 25% annually, easing the financial burden on farmers. It also improved the quality of Hachijo Island's specialty products, including potatoes and tomatoes. Furthermore, food waste from tourist facilities and restaurants, accounting for an additional 200 tons annually, was newly targeted, raising the total processing volume to approximately 1200 tons per year.
This initiative, led by the Hachijo Island Town Office in collaboration with the Tokyo Metropolitan Government, has gained recognition as a model case for regional societies. Plans for expansion to neighboring Izu Islands are also being considered, spreading efforts toward a sustainable society. --- **Conclusion**
Since its inception in 1998, Hachijo Island's food waste recycling initiative has expanded in scale and advanced technologically. In the 2010s, it strengthened collaboration with the tourism sector and established the foundation for a circular society. By the 2020s, it further expanded its scope, emerging as a success story in achieving a sustainable regional society. Prospects for expansion to other areas continue to grow.
**Hachijo Island's Food Waste Recycling Initiative - History and Current Status**
**Hachijo Island's Food Waste Recycling Initiative - History and Current Status**
---
**1998: Beginning of the Recycling Project**
In 1998, Hachijo Island in Tokyo began a food waste recycling initiative aimed at utilizing regional resources and reducing the burden of waste disposal. This project started as a pilot test involving 270 households in the city housing complex, establishing a system to compost approximately 300 tons of food waste annually. At the composting facility, microorganisms were used to decompose food waste, producing organic fertilizer distributed to local farmers. This compost was utilized in the cultivation of specialty products such as potatoes and tomatoes, balancing agricultural economics and environmental conservation.
The composting process employed a high-efficiency decomposition device developed by Kankyo Techno Co., Ltd., which reduced processing time and improved treatment capacity. At this stage, the goal was to process 20% of the food waste into compost, laying the foundation for a sustainable living environment.
---
**2010s: Establishing a Circular Society and Collaboration with Tourism**
In the 2010s, Hachijo Island's recycling project evolved into efforts to establish a circular society across the region. In 2015, the composting facility was expanded, increasing its processing capacity to 800 tons annually. While tourism supported the island's economy, the increase in tourists presented challenges in waste management, leading to the full-scale collection of food waste from tourist facilities and restaurants.
During this period, local use of compost was further promoted, benefiting not only farmers but also school and public facility greening projects. Additionally, Hachijo Island was selected for the "Island Environment Model Project" led by the Tokyo Metropolitan Government, enhancing collaboration with municipalities and companies. The reduction of chemical fertilizer usage through composting was achieved island-wide, balancing environmental and economic benefits.
---
**2020s: Expansion and Technological Advancement**
In the 2020s, Hachijo Island's food waste recycling initiative achieved further advancements. The project expanded to cover the entire island, with an annual capacity to process approximately 1000 tons of food waste. The composting facility adopted the latest decomposition equipment developed by Kankyo Techno Co., Ltd., enabling processing times to be halved and supporting an annual capacity of 1500 tons.
The use of compost reduced chemical fertilizer usage by 25% annually, easing the financial burden on farmers. It also improved the quality of Hachijo Island's specialty products, including potatoes and tomatoes. Furthermore, food waste from tourist facilities and restaurants, accounting for an additional 200 tons annually, was newly targeted, raising the total processing volume to approximately 1200 tons per year.
This initiative, led by the Hachijo Island Town Office in collaboration with the Tokyo Metropolitan Government, has gained recognition as a model case for regional societies. Plans for expansion to neighboring Izu Islands are also being considered, spreading efforts toward a sustainable society.
---
**Conclusion**
Since its inception in 1998, Hachijo Island's food waste recycling initiative has expanded in scale and advanced technologically. In the 2010s, it strengthened collaboration with the tourism sector and established the foundation for a circular society. By the 2020s, it further expanded its scope, emerging as a success story in achieving a sustainable regional society. Prospects for expansion to other areas continue to grow.
---
**1998: Beginning of the Recycling Project**
In 1998, Hachijo Island in Tokyo began a food waste recycling initiative aimed at utilizing regional resources and reducing the burden of waste disposal. This project started as a pilot test involving 270 households in the city housing complex, establishing a system to compost approximately 300 tons of food waste annually. At the composting facility, microorganisms were used to decompose food waste, producing organic fertilizer distributed to local farmers. This compost was utilized in the cultivation of specialty products such as potatoes and tomatoes, balancing agricultural economics and environmental conservation.
The composting process employed a high-efficiency decomposition device developed by Kankyo Techno Co., Ltd., which reduced processing time and improved treatment capacity. At this stage, the goal was to process 20% of the food waste into compost, laying the foundation for a sustainable living environment.
---
**2010s: Establishing a Circular Society and Collaboration with Tourism**
In the 2010s, Hachijo Island's recycling project evolved into efforts to establish a circular society across the region. In 2015, the composting facility was expanded, increasing its processing capacity to 800 tons annually. While tourism supported the island's economy, the increase in tourists presented challenges in waste management, leading to the full-scale collection of food waste from tourist facilities and restaurants.
During this period, local use of compost was further promoted, benefiting not only farmers but also school and public facility greening projects. Additionally, Hachijo Island was selected for the "Island Environment Model Project" led by the Tokyo Metropolitan Government, enhancing collaboration with municipalities and companies. The reduction of chemical fertilizer usage through composting was achieved island-wide, balancing environmental and economic benefits.
---
**2020s: Expansion and Technological Advancement**
In the 2020s, Hachijo Island's food waste recycling initiative achieved further advancements. The project expanded to cover the entire island, with an annual capacity to process approximately 1000 tons of food waste. The composting facility adopted the latest decomposition equipment developed by Kankyo Techno Co., Ltd., enabling processing times to be halved and supporting an annual capacity of 1500 tons.
The use of compost reduced chemical fertilizer usage by 25% annually, easing the financial burden on farmers. It also improved the quality of Hachijo Island's specialty products, including potatoes and tomatoes. Furthermore, food waste from tourist facilities and restaurants, accounting for an additional 200 tons annually, was newly targeted, raising the total processing volume to approximately 1200 tons per year.
This initiative, led by the Hachijo Island Town Office in collaboration with the Tokyo Metropolitan Government, has gained recognition as a model case for regional societies. Plans for expansion to neighboring Izu Islands are also being considered, spreading efforts toward a sustainable society.
---
**Conclusion**
Since its inception in 1998, Hachijo Island's food waste recycling initiative has expanded in scale and advanced technologically. In the 2010s, it strengthened collaboration with the tourism sector and established the foundation for a circular society. By the 2020s, it further expanded its scope, emerging as a success story in achieving a sustainable regional society. Prospects for expansion to other areas continue to grow.
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Recycle Mine Bark Project - June 1995 In 1995, the Japan Mining Association launched the "Recycle Mine Bark Project." This initiative aims to efficiently reuse discarded home appliances and industrial waste by utilizing closed mines, such as the Osarizawa Mine in Aomori Prefecture and the Kosaka Mine in Akita Prefecture, as recycling hubs. Major companies like Mitsui Mining & Smelting and Sumitomo Metal Mining participate, utilizing refining technologies to recover precious metals such as copper, aluminum, iron, and gold from thousands of tons of waste annually. For example, approximately 20,000 tons of copper and 10,000 tons of aluminum are recovered and recycled annually from refrigerators and televisions. Furthermore, in cooperation with the Ministry of the Environment, waste collection is being advanced nationwide, with hundreds of thousands of tons of industrial waste being reused annually across Japan. This initiative is gaining attention both domestically and internati
onally as a model for sustainable resource management.
onally as a model for sustainable resource management.
リサイクル・マイン・バーク計画-1995年6月
リサイクル・マイン・バーク計画-1995年6月
1995年、日本鉱業協会は「リサイクル・マイン・バーク計画」を発足させました。この計画は、青森県の尾去沢鉱山や秋田県の小坂鉱山などの閉鎖された鉱山をリサイクル拠点として活用し、廃家電や産業廃棄物を効率的に再利用することを目指しています。三井金属鉱業や住友金属鉱山などの大手企業が参加し、精錬技術を活用して年間数千トンの廃棄物から銅、アルミニウム、鉄、金といった貴金属を回収しています。例えば、冷蔵庫やテレビからは年間約2万トンの銅、1万トンのアルミニウムが回収され、リサイクルされています。また、環境省との協力により、全国で廃棄物の回収が進められており、日本全体で年間数十万トンの産業廃棄物が再利用されています。この取り組みは、国内外で持続可能な資源管理のモデルとして
注目されています。
1995年、日本鉱業協会は「リサイクル・マイン・バーク計画」を発足させました。この計画は、青森県の尾去沢鉱山や秋田県の小坂鉱山などの閉鎖された鉱山をリサイクル拠点として活用し、廃家電や産業廃棄物を効率的に再利用することを目指しています。三井金属鉱業や住友金属鉱山などの大手企業が参加し、精錬技術を活用して年間数千トンの廃棄物から銅、アルミニウム、鉄、金といった貴金属を回収しています。例えば、冷蔵庫やテレビからは年間約2万トンの銅、1万トンのアルミニウムが回収され、リサイクルされています。また、環境省との協力により、全国で廃棄物の回収が進められており、日本全体で年間数十万トンの産業廃棄物が再利用されています。この取り組みは、国内外で持続可能な資源管理のモデルとして
注目されています。
### Detailed History of Illegal Transport under the Basel Convention #### 1990s: Adoption of the Basel Convention and Japan’s Response The Basel Convention, adopted in 1989 and implemented in 1992, aimed to regulate the transboundary movement of hazardous waste. Japan joined the convention in 1993, initiating efforts to strengthen waste management. In 1998, a meeting in Kuching, Malaysia, discussed export restrictions for recyclable hazardous waste. However, no consensus was reached, and Japan imported 12466 tons of etching waste and spent catalysts that year. #### 2000s: Increase in Electronic Waste and Strengthening of Regulations
### Detailed History of Illegal Transport under the Basel Convention #### 1990s: Adoption of the Basel Convention and Japan's Response The Basel Convention, adopted in 1989 and implemented in 1992, aimed to regulate the transboundary movement of hazardous waste. Japan joined the convention in 1993, initiating efforts to strengthen waste management. In 1998, a meeting in Kuching, Malaysia, discussed export restrictions for recyclable hazardous waste. However, no consensus was reached, and Japan imported 12466 tons of etching waste and spent catalysts that year. #### 2000s: Increase in Electronic Waste and Strengthening of Regulations
In the 2000s, the import of electronic waste (E-waste) from Southeast Asian countries increased. DOWA Group's Kosaka Smelting and Mitsubishi Materials' Naoshima Smelter played key roles in recycling waste containing lead, copper, and silver. By 2005, the import volume reached 14637 tons, highlighting the importance of waste management, though illegal transport remained a significant challenge.
#### 2010s: Amendment of the Basel Law and Simplification of Import Procedures
In 2018, Japan amended its Basel Law, introducing a pre-consent mechanism to expedite the import of waste to environmentally conscious recycling facilities. As a result, the import of items like printed circuit boards (PCBs) and used batteries became smoother, and the number of regulated items was reduced. Companies such as Mitsubishi Materials and JX Metals expanded their capacity to handle hazardous waste containing lead and mercury.
#### 2020s: Strengthening Monitoring and International Cooperation against Illegal Transport In the 2020s, Japan enhanced cooperation with Southeast Asian countries and strengthened its monitoring system against illegal transport. In 2020, 72112 tons of hazardous waste were imported, with much of it processed at facilities like Mitsubishi Materials' Naoshima Smelter and JX Metals' Hitachi Smelter. Additionally, issues such as fires and odors from improper electronic waste management have arisen, prompting the government to increase enforcement efforts. Through these efforts, Japan aims to balance efficient waste management with environmental conservation, complying with the Basel Convention and advancing technologies that contribute to global environmental protection.
In the 2000s, the import of electronic waste (E-waste) from Southeast Asian countries increased. DOWA Group's Kosaka Smelting and Mitsubishi Materials' Naoshima Smelter played key roles in recycling waste containing lead, copper, and silver. By 2005, the import volume reached 14637 tons, highlighting the importance of waste management, though illegal transport remained a significant challenge.
#### 2010s: Amendment of the Basel Law and Simplification of Import Procedures
In 2018, Japan amended its Basel Law, introducing a pre-consent mechanism to expedite the import of waste to environmentally conscious recycling facilities. As a result, the import of items like printed circuit boards (PCBs) and used batteries became smoother, and the number of regulated items was reduced. Companies such as Mitsubishi Materials and JX Metals expanded their capacity to handle hazardous waste containing lead and mercury.
#### 2020s: Strengthening Monitoring and International Cooperation against Illegal Transport In the 2020s, Japan enhanced cooperation with Southeast Asian countries and strengthened its monitoring system against illegal transport. In 2020, 72112 tons of hazardous waste were imported, with much of it processed at facilities like Mitsubishi Materials' Naoshima Smelter and JX Metals' Hitachi Smelter. Additionally, issues such as fires and odors from improper electronic waste management have arisen, prompting the government to increase enforcement efforts. Through these efforts, Japan aims to balance efficient waste management with environmental conservation, complying with the Basel Convention and advancing technologies that contribute to global environmental protection.
### Detailed History of Illegal Transport under the Basel Convention
### Detailed History of Illegal Transport under the Basel Convention
#### 1990s: Adoption of the Basel Convention and Japan's Response
The Basel Convention, adopted in 1989 and implemented in 1992, aimed to regulate the transboundary movement of hazardous waste. Japan joined the convention in 1993, initiating efforts to strengthen waste management. In 1998, a meeting in Kuching, Malaysia, discussed export restrictions for recyclable hazardous waste. However, no consensus was reached, and Japan imported 12466 tons of etching waste and spent catalysts that year.
#### 2000s: Increase in Electronic Waste and Strengthening of Regulations
In the 2000s, the import of electronic waste (E-waste) from Southeast Asian countries increased. DOWA Group's Kosaka Smelting and Mitsubishi Materials' Naoshima Smelter played key roles in recycling waste containing lead, copper, and silver. By 2005, the import volume reached 14637 tons, highlighting the importance of waste management, though illegal transport remained a significant challenge.
#### 2010s: Amendment of the Basel Law and Simplification of Import Procedures
In 2018, Japan amended its Basel Law, introducing a pre-consent mechanism to expedite the import of waste to environmentally conscious recycling facilities. As a result, the import of items like printed circuit boards (PCBs) and used batteries became smoother, and the number of regulated items was reduced. Companies such as Mitsubishi Materials and JX Metals expanded their capacity to handle hazardous waste containing lead and mercury.
#### 2020s: Strengthening Monitoring and International Cooperation against Illegal Transport
In the 2020s, Japan enhanced cooperation with Southeast Asian countries and strengthened its monitoring system against illegal transport. In 2020, 72112 tons of hazardous waste were imported, with much of it processed at facilities like Mitsubishi Materials' Naoshima Smelter and JX Metals' Hitachi Smelter. Additionally, issues such as fires and odors from improper electronic waste management have arisen, prompting the government to increase enforcement efforts.
Through these efforts, Japan aims to balance efficient waste management with environmental conservation, complying with the Basel Convention and advancing technologies that contribute to global environmental protection.
#### 1990s: Adoption of the Basel Convention and Japan's Response
The Basel Convention, adopted in 1989 and implemented in 1992, aimed to regulate the transboundary movement of hazardous waste. Japan joined the convention in 1993, initiating efforts to strengthen waste management. In 1998, a meeting in Kuching, Malaysia, discussed export restrictions for recyclable hazardous waste. However, no consensus was reached, and Japan imported 12466 tons of etching waste and spent catalysts that year.
#### 2000s: Increase in Electronic Waste and Strengthening of Regulations
In the 2000s, the import of electronic waste (E-waste) from Southeast Asian countries increased. DOWA Group's Kosaka Smelting and Mitsubishi Materials' Naoshima Smelter played key roles in recycling waste containing lead, copper, and silver. By 2005, the import volume reached 14637 tons, highlighting the importance of waste management, though illegal transport remained a significant challenge.
#### 2010s: Amendment of the Basel Law and Simplification of Import Procedures
In 2018, Japan amended its Basel Law, introducing a pre-consent mechanism to expedite the import of waste to environmentally conscious recycling facilities. As a result, the import of items like printed circuit boards (PCBs) and used batteries became smoother, and the number of regulated items was reduced. Companies such as Mitsubishi Materials and JX Metals expanded their capacity to handle hazardous waste containing lead and mercury.
#### 2020s: Strengthening Monitoring and International Cooperation against Illegal Transport
In the 2020s, Japan enhanced cooperation with Southeast Asian countries and strengthened its monitoring system against illegal transport. In 2020, 72112 tons of hazardous waste were imported, with much of it processed at facilities like Mitsubishi Materials' Naoshima Smelter and JX Metals' Hitachi Smelter. Additionally, issues such as fires and odors from improper electronic waste management have arisen, prompting the government to increase enforcement efforts.
Through these efforts, Japan aims to balance efficient waste management with environmental conservation, complying with the Basel Convention and advancing technologies that contribute to global environmental protection.
Saturday, February 28, 2026
### History and Current Status of Air Pollution in Bali (1990s–2020s) ### 1990s: Tourism Development and the Emergence of Air Pollution
### History and Current Status of Air Pollution in Bali (1990s–2020s) ### 1990s: Tourism Development and the Emergence of Air Pollution
In 1998, Bali's rapid tourism growth led to increased traffic in major tourist areas like Denpasar, Kuta, and Ubud. Emissions from cars and motorcycles became the primary cause of air pollution. This resulted in rising concentrations of particulate matter (PM10) and nitrogen oxides (NOx), raising concerns about health impacts on residents and tourists. The government considered introducing emission standards and traffic reduction measures, but hesitated to implement concrete countermeasures due to concerns about the impact on the tourism industry. ---
#### 2010s: Strengthened Environmental Measures and Challenges Efforts to address Bali's air pollution problems intensified in the 2010s. In 2012, regulations on emissions from the growing number of motorcycles were tightened, and the introduction of low-pollution fuels and technologies was promoted. Additionally, haze from forest and peatland fires caused high concentrations of particulate matter, leading to transboundary pollution affecting Singapore and Malaysia, necessitating regional cooperation. However, new challenges emerged, including increased traffic due to further tourism development and inadequate waste management systems. --- #### 2020s: Promoting Sustainable Tourism and Environmental Protection
Air pollution in Bali remains a persistent challenge in the 2020s. In urban areas like Denpasar, Kuta, and Seminyak, emissions from transportation, industrial activities, and forest fires are primary sources of pollution. Harmful substances such as PM2.5, PM10, nitrogen dioxide (NO₂), and carbon monoxide (CO) are detected.
The Indonesian government announced a plan in April 2020 aiming for a significant reduction in plastic waste, setting concrete targets: a 70% reduction in marine plastic waste by 2025 and zero plastic pollution by 2040. Furthermore, since January 2019, Denpasar City has implemented measures banning the use of plastic bags and containers.
Furthermore, the environmental protection group Sungai Watch began operations in 2020, undertaking initiatives such as installing barriers to prevent waste from flowing into rivers. As of May 2024, this group reports having prevented over 1.7 million kilograms of waste from entering the ocean.
However, issues persist, including increased traffic due to tourism growth and inadequate waste management systems. Further measures are needed, such as promoting sustainable tourism, introducing renewable energy, and improving public transportation. ---
### Historical Assessment and Future Challenges While Bali's air pollution countermeasures have gradually progressed since the 1990s, balancing tourism development with environmental protection remains a challenge. Drawing on past lessons, it is necessary to pursue sustainable solutions through international cooperation and technological innovation.
In 1998, Bali's rapid tourism growth led to increased traffic in major tourist areas like Denpasar, Kuta, and Ubud. Emissions from cars and motorcycles became the primary cause of air pollution. This resulted in rising concentrations of particulate matter (PM10) and nitrogen oxides (NOx), raising concerns about health impacts on residents and tourists. The government considered introducing emission standards and traffic reduction measures, but hesitated to implement concrete countermeasures due to concerns about the impact on the tourism industry. ---
#### 2010s: Strengthened Environmental Measures and Challenges Efforts to address Bali's air pollution problems intensified in the 2010s. In 2012, regulations on emissions from the growing number of motorcycles were tightened, and the introduction of low-pollution fuels and technologies was promoted. Additionally, haze from forest and peatland fires caused high concentrations of particulate matter, leading to transboundary pollution affecting Singapore and Malaysia, necessitating regional cooperation. However, new challenges emerged, including increased traffic due to further tourism development and inadequate waste management systems. --- #### 2020s: Promoting Sustainable Tourism and Environmental Protection
Air pollution in Bali remains a persistent challenge in the 2020s. In urban areas like Denpasar, Kuta, and Seminyak, emissions from transportation, industrial activities, and forest fires are primary sources of pollution. Harmful substances such as PM2.5, PM10, nitrogen dioxide (NO₂), and carbon monoxide (CO) are detected.
The Indonesian government announced a plan in April 2020 aiming for a significant reduction in plastic waste, setting concrete targets: a 70% reduction in marine plastic waste by 2025 and zero plastic pollution by 2040. Furthermore, since January 2019, Denpasar City has implemented measures banning the use of plastic bags and containers.
Furthermore, the environmental protection group Sungai Watch began operations in 2020, undertaking initiatives such as installing barriers to prevent waste from flowing into rivers. As of May 2024, this group reports having prevented over 1.7 million kilograms of waste from entering the ocean.
However, issues persist, including increased traffic due to tourism growth and inadequate waste management systems. Further measures are needed, such as promoting sustainable tourism, introducing renewable energy, and improving public transportation. ---
### Historical Assessment and Future Challenges While Bali's air pollution countermeasures have gradually progressed since the 1990s, balancing tourism development with environmental protection remains a challenge. Drawing on past lessons, it is necessary to pursue sustainable solutions through international cooperation and technological innovation.
### バリ島の大気汚染問題の歴史と現状（1990年代～2020年代）
### バリ島の大気汚染問題の歴史と現状（1990年代～2020年代）
#### 1990年代：観光業の発展と大気汚染の顕在化
1998年、バリ島では観光業の急速な発展に伴い、デンパサールやクタ、ウブドなどの主要観光地で交通量が増加し、自動車やオートバイからの排出ガスが大気汚染の主な原因となりました。これにより、浮遊粒子状物質（PM10）や窒素酸化物（NOx）の濃度が上昇し、住民や観光客の健康への影響が懸念されました。政府は排ガス基準の導入や交通量削減策を検討しましたが、観光産業への影響を考慮し、具体的な対策の実施には至りませんでした。
---
#### 2010年代：環境対策の強化と課題
2010年代に入ると、バリ島の大気汚染問題に対する取り組みが強化されました。2012年には、増加するオートバイの排出ガス規制が強化され、低公害燃料や技術の導入が推進されました。また、森林火災や泥炭地火災による煙霧（ヘイズ）が高濃度の浮遊粒子状物質をもたらし、シンガポールやマレーシアへの越境汚染も発生したため、地域的な協力が求められました。しかし、観光業のさらなる発展に伴う交通量の増加や廃棄物処理システムの整備不足など、新たな課題も浮上しました。
---
#### 2020年代：持続可能な観光と環境保護の推進
2020年代においても、バリ島の大気汚染は依然として課題となっています。特にデンパサール、クタ、スミニャックなどの都市部では、交通機関からの排出ガスや産業活動、森林火災が主な汚染源となり、PM2.5やPM10、二酸化窒素（NO₂）、一酸化炭素（CO）などの有害物質が検出されています。
インドネシア政府は、2020年4月にプラスチックごみの大幅な削減を目指す計画を発表し、2025年までに海洋プラスチックごみを70％削減し、2040年までにプラスチック汚染をゼロにするという具体的な目標を掲げました。また、2019年1月からデンパサール市ではプラスチック製の袋や容器の使用を禁止する取り組みが行われています。
さらに、環境保護団体「スンガイ・ウォッチ」は2020年から活動を開始し、川にゴミを流出させないためのバリアを設置するなどの取り組みを行っています。この団体は、2024年5月時点で170万キログラム以上のゴミが海に流出するのを防いだと報告しています。
しかし、観光業の発展に伴う交通量の増加や、適切な廃棄物処理システムの不足が依然として問題視されています。持続可能な観光業の推進や、再生可能エネルギーの導入、公共交通機関の整備など、さらなる対策が求められています。
---
### 歴史的評価と今後の課題
バリ島の大気汚染対策は、1990年代から徐々に進展してきましたが、観光業の発展と環境保護のバランスを取ることは依然として課題です。過去の教訓を活かし、国際的な協力と技術革新を通じて、持続可能な解決策を追求する必要があります。
#### 1990年代：観光業の発展と大気汚染の顕在化
1998年、バリ島では観光業の急速な発展に伴い、デンパサールやクタ、ウブドなどの主要観光地で交通量が増加し、自動車やオートバイからの排出ガスが大気汚染の主な原因となりました。これにより、浮遊粒子状物質（PM10）や窒素酸化物（NOx）の濃度が上昇し、住民や観光客の健康への影響が懸念されました。政府は排ガス基準の導入や交通量削減策を検討しましたが、観光産業への影響を考慮し、具体的な対策の実施には至りませんでした。
---
#### 2010年代：環境対策の強化と課題
2010年代に入ると、バリ島の大気汚染問題に対する取り組みが強化されました。2012年には、増加するオートバイの排出ガス規制が強化され、低公害燃料や技術の導入が推進されました。また、森林火災や泥炭地火災による煙霧（ヘイズ）が高濃度の浮遊粒子状物質をもたらし、シンガポールやマレーシアへの越境汚染も発生したため、地域的な協力が求められました。しかし、観光業のさらなる発展に伴う交通量の増加や廃棄物処理システムの整備不足など、新たな課題も浮上しました。
---
#### 2020年代：持続可能な観光と環境保護の推進
2020年代においても、バリ島の大気汚染は依然として課題となっています。特にデンパサール、クタ、スミニャックなどの都市部では、交通機関からの排出ガスや産業活動、森林火災が主な汚染源となり、PM2.5やPM10、二酸化窒素（NO₂）、一酸化炭素（CO）などの有害物質が検出されています。
インドネシア政府は、2020年4月にプラスチックごみの大幅な削減を目指す計画を発表し、2025年までに海洋プラスチックごみを70％削減し、2040年までにプラスチック汚染をゼロにするという具体的な目標を掲げました。また、2019年1月からデンパサール市ではプラスチック製の袋や容器の使用を禁止する取り組みが行われています。
さらに、環境保護団体「スンガイ・ウォッチ」は2020年から活動を開始し、川にゴミを流出させないためのバリアを設置するなどの取り組みを行っています。この団体は、2024年5月時点で170万キログラム以上のゴミが海に流出するのを防いだと報告しています。
しかし、観光業の発展に伴う交通量の増加や、適切な廃棄物処理システムの不足が依然として問題視されています。持続可能な観光業の推進や、再生可能エネルギーの導入、公共交通機関の整備など、さらなる対策が求められています。
---
### 歴史的評価と今後の課題
バリ島の大気汚染対策は、1990年代から徐々に進展してきましたが、観光業の発展と環境保護のバランスを取ることは依然として課題です。過去の教訓を活かし、国際的な協力と技術革新を通じて、持続可能な解決策を追求する必要があります。
Chemical Waste Groundwater Contamination Problem in Sendai City, Miyagi Prefecture - January 2011 In Sendai City, Miyagi Prefecture, approximately 50 tons of illegally dumped chemicals have contaminated groundwater, threatening the safety of drinking water. Tests revealed groundwater trichloroethylene levels 10 times the standard limit and carbon tetrachloride levels 8 times the standard limit, affecting approximately 500 households in the surrounding area. The contamination zone extends approximately 3 kilometers in diameter, leading to the suspension of agricultural water and well water use.
Chemical Waste Groundwater Contamination Problem in Sendai City, Miyagi Prefecture - January 2011 In Sendai City, Miyagi Prefecture, approximately 50 tons of illegally dumped chemicals have contaminated groundwater, threatening the safety of drinking water. Tests revealed groundwater trichloroethylene levels 10 times the standard limit and carbon tetrachloride levels 8 times the standard limit, affecting approximately 500 households in the surrounding area. The contamination zone extends approximately 3 kilometers in diameter, leading to the suspension of agricultural water and well water use.
As an emergency measure, Sendai City installed water purification facilities, increasing daily purification capacity to 500 tons. Furthermore, ten pumps aimed at purifying the groundwater have been installed, and excavation work on the contaminated soil is underway. The restoration work is expected to cost approximately 200 million yen. The two companies responsible for the illegal dumping were identified and fined 70 million yen and 90 million yen, respectively.
To prevent recurrence, the city installed 10 surveillance cameras in its industrial zones and distributed 10,000 awareness posters. Furthermore, to ensure strict chemical management, it holds four training sessions annually for local companies. These efforts have reduced illegal dumping incidents in industrial zones by approximately 30% compared to the previous year. This incident underscores the importance of ensuring the safety of local residents' drinking water and strengthening chemical waste management.
As an emergency measure, Sendai City installed water purification facilities, increasing daily purification capacity to 500 tons. Furthermore, ten pumps aimed at purifying the groundwater have been installed, and excavation work on the contaminated soil is underway. The restoration work is expected to cost approximately 200 million yen. The two companies responsible for the illegal dumping were identified and fined 70 million yen and 90 million yen, respectively.
To prevent recurrence, the city installed 10 surveillance cameras in its industrial zones and distributed 10,000 awareness posters. Furthermore, to ensure strict chemical management, it holds four training sessions annually for local companies. These efforts have reduced illegal dumping incidents in industrial zones by approximately 30% compared to the previous year. This incident underscores the importance of ensuring the safety of local residents' drinking water and strengthening chemical waste management.
宮城県仙台市における化学薬品廃棄による地下水汚染問題 - 2011年1月
宮城県仙台市における化学薬品廃棄による地下水汚染問題 - 2011年1月
宮城県仙台市で、違法に廃棄された約50トンの化学薬品が地下水を汚染し、飲用水の安全性が脅かされています。検査では、地下水中のトリクロロエチレン濃度が基準値の10倍、四塩化炭素濃度が基準値の8倍に達し、周辺地域の約500世帯が影響を受けています。また、汚染範囲は直径約3キロメートルに及び、農業用水や井戸水の利用も停止されました。
仙台市は緊急対策として、浄水処理施設を設置し、浄水能力を日量500トンに増強。さらに、地下水浄化を目的としたポンプ10基を設置し、汚染土壌の掘削作業を進めています。この復旧作業には約2億円の費用が見込まれています。不法廃棄を行った企業2社が特定され、それぞれ罰金7000万円と9000万円が科されました。
再発防止のため、市内の工業地帯に10台の監視カメラを設置し、1万部の啓発ポスターを配布。さらに、化学薬品管理を徹底するため、地元企業を対象とした講習会を年4回開催しています。この取り組みにより、工業地帯での不法廃棄件数は前年比で約30％減少しました。この事件は、地域住民の飲用水安全確保と化学廃棄物管理の強化の重要性を示しています。
宮城県仙台市で、違法に廃棄された約50トンの化学薬品が地下水を汚染し、飲用水の安全性が脅かされています。検査では、地下水中のトリクロロエチレン濃度が基準値の10倍、四塩化炭素濃度が基準値の8倍に達し、周辺地域の約500世帯が影響を受けています。また、汚染範囲は直径約3キロメートルに及び、農業用水や井戸水の利用も停止されました。
仙台市は緊急対策として、浄水処理施設を設置し、浄水能力を日量500トンに増強。さらに、地下水浄化を目的としたポンプ10基を設置し、汚染土壌の掘削作業を進めています。この復旧作業には約2億円の費用が見込まれています。不法廃棄を行った企業2社が特定され、それぞれ罰金7000万円と9000万円が科されました。
再発防止のため、市内の工業地帯に10台の監視カメラを設置し、1万部の啓発ポスターを配布。さらに、化学薬品管理を徹底するため、地元企業を対象とした講習会を年4回開催しています。この取り組みにより、工業地帯での不法廃棄件数は前年比で約30％減少しました。この事件は、地域住民の飲用水安全確保と化学廃棄物管理の強化の重要性を示しています。
Friday, February 27, 2026
Food Bank Development - Current Status in the 2020s (October 2020) Entering the 2020s, amid growing concerns about environmental pollution and food safety, the role of food banks in Japan has become increasingly important. Particularly problematic is the accumulation of harmful substances like heavy metals and dioxins in food due to environmental pollution, leading to strengthened monitoring systems nationwide.
Food Bank Development - Current Status in the 2020s (October 2020) Entering the 2020s, amid growing concerns about environmental pollution and food safety, the role of food banks in Japan has become increasingly important. Particularly problematic is the accumulation of harmful substances like heavy metals and dioxins in food due to environmental pollution, leading to strengthened monitoring systems nationwide.
For example, in Fukushima Prefecture, the effects of radioactive cesium-137 from the 2011 nuclear accident persist to this day, necessitating stringent safety inspections of agricultural and marine products. Furthermore, only Fukushima-produced rice and vegetables meeting strict standards based on radiation testing results are permitted to enter the market.
Furthermore, in Ise Bay, Mie Prefecture, pollution from industrial wastewater, including mercury and cadmium, is severe, necessitating ongoing monitoring of seafood. In response, the nationwide food bank network collaborates, freezing food samples for periodic analysis.
Corporate cooperation is also active, with Nichirei, known for its freezing technology, and the trading company Marubeni providing state-of-the-art freezing equipment to food banks. Nichirei, in particular, utilizes ultra-low temperature freezing technology at -60°C to establish a system that preserves food quality over extended periods. This technology strengthens efforts to ensure food safety while reducing food loss.
Furthermore, the government and companies have introduced a system utilizing blockchain technology to manage food bank data. This enhances food traceability, enabling rapid detection and response to food affected by contaminants. Moreover, in 2020, approximately 1.5 million tons of food were managed annually through food banks, contributing to ensuring food safety and building a sustainable food system.
For example, in Fukushima Prefecture, the effects of radioactive cesium-137 from the 2011 nuclear accident persist to this day, necessitating stringent safety inspections of agricultural and marine products. Furthermore, only Fukushima-produced rice and vegetables meeting strict standards based on radiation testing results are permitted to enter the market.
Furthermore, in Ise Bay, Mie Prefecture, pollution from industrial wastewater, including mercury and cadmium, is severe, necessitating ongoing monitoring of seafood. In response, the nationwide food bank network collaborates, freezing food samples for periodic analysis.
Corporate cooperation is also active, with Nichirei, known for its freezing technology, and the trading company Marubeni providing state-of-the-art freezing equipment to food banks. Nichirei, in particular, utilizes ultra-low temperature freezing technology at -60°C to establish a system that preserves food quality over extended periods. This technology strengthens efforts to ensure food safety while reducing food loss.
Furthermore, the government and companies have introduced a system utilizing blockchain technology to manage food bank data. This enhances food traceability, enabling rapid detection and response to food affected by contaminants. Moreover, in 2020, approximately 1.5 million tons of food were managed annually through food banks, contributing to ensuring food safety and building a sustainable food system.
食品バンク整備 - 2020年代の現状（2020年10月）
食品バンク整備 - 2020年代の現状（2020年10月）
2020年代に入り、環境汚染や食品の安全性に対する懸念が高まる中、日本国内の食品バンクの役割はさらに重要になっています。特に、環境汚染による食物中の重金属やダイオキシンなどの有害物質の蓄積が問題視されており、全国各地でモニタリング体制が強化されています。
例えば、福島県では2011年の原発事故後、放射性物質セシウム137の影響が今もなお続いており、農作物や水産物に対する安全性検査が厳重に行われています。また、福島産のコメや野菜は、放射能検査の結果に基づき、厳しい基準をクリアしたもののみが市場に出回るよう管理されています。
さらに、三重県の伊勢湾では、工業排水による水銀やカドミウムの汚染が深刻であり、海産物に対するモニタリングが続けられています。これに対して、全国の食品バンクネットワークが連携し、食品サンプルを冷凍保存しながら定期的な分析を行っています。
企業の協力も積極的に行われており、冷凍技術で知られるニチレイや総合商社の丸紅が食品バンクに最先端の冷凍設備を提供しています。特にニチレイは、-60℃の超低温冷凍技術を駆使し、長期間にわたって食品の品質を保つ体制を整えています。この技術により、食品の安全性を確保しつつ、食品ロスを削減する取り組みが強化されています。
また、政府や企業は、食品バンクのデータをブロックチェーン技術を活用して管理するシステムを導入しています。これにより、食品の追跡可能性が向上し、汚染物質の影響を受けた食品の迅速な検出と対応が可能になっています。さらに、2020年には年間約150万トンの食品が食品バンクを通じて管理され、食品の安全性確保と持続可能なフードシステムの構築に貢献しています。
2020年代に入り、環境汚染や食品の安全性に対する懸念が高まる中、日本国内の食品バンクの役割はさらに重要になっています。特に、環境汚染による食物中の重金属やダイオキシンなどの有害物質の蓄積が問題視されており、全国各地でモニタリング体制が強化されています。
例えば、福島県では2011年の原発事故後、放射性物質セシウム137の影響が今もなお続いており、農作物や水産物に対する安全性検査が厳重に行われています。また、福島産のコメや野菜は、放射能検査の結果に基づき、厳しい基準をクリアしたもののみが市場に出回るよう管理されています。
さらに、三重県の伊勢湾では、工業排水による水銀やカドミウムの汚染が深刻であり、海産物に対するモニタリングが続けられています。これに対して、全国の食品バンクネットワークが連携し、食品サンプルを冷凍保存しながら定期的な分析を行っています。
企業の協力も積極的に行われており、冷凍技術で知られるニチレイや総合商社の丸紅が食品バンクに最先端の冷凍設備を提供しています。特にニチレイは、-60℃の超低温冷凍技術を駆使し、長期間にわたって食品の品質を保つ体制を整えています。この技術により、食品の安全性を確保しつつ、食品ロスを削減する取り組みが強化されています。
また、政府や企業は、食品バンクのデータをブロックチェーン技術を活用して管理するシステムを導入しています。これにより、食品の追跡可能性が向上し、汚染物質の影響を受けた食品の迅速な検出と対応が可能になっています。さらに、2020年には年間約150万トンの食品が食品バンクを通じて管理され、食品の安全性確保と持続可能なフードシステムの構築に貢献しています。
### History and Current Status of the Great Pacific Garbage Patch #### 1990s: Discovery and Warning In 1999, a research group led by Professor Masahisa Kubota of the Faculty of Marine Science at Tokai University discovered a massive garbage patch in the North Pacific Ocean. This band-shaped structure, approximately 1000 km wide, is concentrated between latitudes 20° and 40° north, crossing the Pacific Ocean from east to west. The patch is formed as waste, including plastics and styrofoam, discharged from the U.S. West Coast and Japanese coasts, is carried by currents and winds over months.
### History and Current Status of the Great Pacific Garbage Patch #### 1990s: Discovery and Warning In 1999, a research group led by Professor Masahisa Kubota of the Faculty of Marine Science at Tokai University discovered a massive garbage patch in the North Pacific Ocean. This band-shaped structure, approximately 1000 km wide, is concentrated between latitudes 20° and 40° north, crossing the Pacific Ocean from east to west. The patch is formed as waste, including plastics and styrofoam, discharged from the U.S. West Coast and Japanese coasts, is carried by currents and winds over months.
Plastics, in particular, have been highlighted as a problem, with microplastics entering marine organisms' bodies and causing adverse effects on entire ecosystems through the food chain. This discovery served as a turning point for international awareness of marine pollution as a global environmental issue, prompting countries to take measures starting in the 2000s. #### 2000s: Establishing International Frameworks
In the 2000s, marine garbage became a central issue on the international agenda. In 2004, the United Nations Environment Programme (UNEP) released its first international report on marine plastic pollution, urging governments to take action. Meanwhile, in Japan, cleanup activities in Lake Biwa and along the Sea of Japan intensified, with local governments and citizen groups initiating voluntary efforts to reduce marine debris.
Corporate initiatives also emerged, with Procter & Gamble (P&G) launching shampoo bottles made from recycled ocean plastics in 2008, gaining international attention. Meanwhile, scientists conducted the "Drifting Debris Project," identifying the material composition and sources of the North Pacific garbage patch, providing crucial data for addressing marine pollution.
#### 2010s: Expansion of Efforts In the 2010s, international efforts to address marine plastic pollution advanced further. The Dutch non-profit organization "The Ocean Cleanup" was launched to develop technologies for collecting marine debris. In Japan, the Ministry of the Environment implemented the "Action Plan for Marine Plastic Waste Countermeasures," promoting cleanup activities and recycling technologies in collaboration with local governments and companies.
Corporate activities also saw progress, with Japanese companies like Sekisui Chemical accelerating the development of biodegradable plastics and an increasing number of companies actively promoting products made from recycled materials. #### 2020s: Technological Innovation and International Cooperation Entering the 2020s, the "Great Pacific Garbage Patch" remains a severe issue. "The Ocean Cleanup" has set a goal to remove 90% of floating marine plastics by 2040 and has improved its collection systems. To date, more than 19000 tons of plastics have been removed, with enhanced efficiency. In Japan, Suzuki Motor Corporation launched the "Suzuki Clean Ocean Project" in 2020, equipping outboard motors with microplastic collection devices. Pilot Corporation began selling pens made from recycled ocean plastics, and LIXIL developed "Reviea," a sustainable material using composite plastics and ocean plastics, expanding eco-friendly products. #### Future Challenges and Prospects Despi
te progress, the challenges in addressing the Great Pacific Garbage Patch remain significant, both technically and economically. International cooperation and corporate innovation are key to overcoming these issues. Initiatives like "The Ocean Cleanup" and Japan's Ministry of the Environment's efforts highlight the direction of next-generation environmental technologies while emphasizing the need for waste reduction and widespread recycling technologies. The history of the Great Pacific Garbage Patch demonstrates the complexity and difficulty of environmental problems, while also emphasizing the potential of human technology and cooperation. Efforts toward a sustainable marine environment are expected to make further progress.
Plastics, in particular, have been highlighted as a problem, with microplastics entering marine organisms' bodies and causing adverse effects on entire ecosystems through the food chain. This discovery served as a turning point for international awareness of marine pollution as a global environmental issue, prompting countries to take measures starting in the 2000s. #### 2000s: Establishing International Frameworks
In the 2000s, marine garbage became a central issue on the international agenda. In 2004, the United Nations Environment Programme (UNEP) released its first international report on marine plastic pollution, urging governments to take action. Meanwhile, in Japan, cleanup activities in Lake Biwa and along the Sea of Japan intensified, with local governments and citizen groups initiating voluntary efforts to reduce marine debris.
Corporate initiatives also emerged, with Procter & Gamble (P&G) launching shampoo bottles made from recycled ocean plastics in 2008, gaining international attention. Meanwhile, scientists conducted the "Drifting Debris Project," identifying the material composition and sources of the North Pacific garbage patch, providing crucial data for addressing marine pollution.
#### 2010s: Expansion of Efforts In the 2010s, international efforts to address marine plastic pollution advanced further. The Dutch non-profit organization "The Ocean Cleanup" was launched to develop technologies for collecting marine debris. In Japan, the Ministry of the Environment implemented the "Action Plan for Marine Plastic Waste Countermeasures," promoting cleanup activities and recycling technologies in collaboration with local governments and companies.
Corporate activities also saw progress, with Japanese companies like Sekisui Chemical accelerating the development of biodegradable plastics and an increasing number of companies actively promoting products made from recycled materials. #### 2020s: Technological Innovation and International Cooperation Entering the 2020s, the "Great Pacific Garbage Patch" remains a severe issue. "The Ocean Cleanup" has set a goal to remove 90% of floating marine plastics by 2040 and has improved its collection systems. To date, more than 19000 tons of plastics have been removed, with enhanced efficiency. In Japan, Suzuki Motor Corporation launched the "Suzuki Clean Ocean Project" in 2020, equipping outboard motors with microplastic collection devices. Pilot Corporation began selling pens made from recycled ocean plastics, and LIXIL developed "Reviea," a sustainable material using composite plastics and ocean plastics, expanding eco-friendly products. #### Future Challenges and Prospects Despi
te progress, the challenges in addressing the Great Pacific Garbage Patch remain significant, both technically and economically. International cooperation and corporate innovation are key to overcoming these issues. Initiatives like "The Ocean Cleanup" and Japan's Ministry of the Environment's efforts highlight the direction of next-generation environmental technologies while emphasizing the need for waste reduction and widespread recycling technologies. The history of the Great Pacific Garbage Patch demonstrates the complexity and difficulty of environmental problems, while also emphasizing the potential of human technology and cooperation. Efforts toward a sustainable marine environment are expected to make further progress.
### History and Current Status of the Great Pacific Garbage Patch
### History and Current Status of the Great Pacific Garbage Patch
#### 1990s: Discovery and Warning
In 1999, a research group led by Professor Masahisa Kubota of the Faculty of Marine Science at Tokai University discovered a massive garbage patch in the North Pacific Ocean. This band-shaped structure, approximately 1000 km wide, is concentrated between latitudes 20° and 40° north, crossing the Pacific Ocean from east to west. The patch is formed as waste, including plastics and styrofoam, discharged from the U.S. West Coast and Japanese coasts, is carried by currents and winds over months.
Plastics, in particular, have been highlighted as a problem, with microplastics entering marine organisms' bodies and causing adverse effects on entire ecosystems through the food chain. This discovery served as a turning point for international awareness of marine pollution as a global environmental issue, prompting countries to take measures starting in the 2000s.
#### 2000s: Establishing International Frameworks
In the 2000s, marine garbage became a central issue on the international agenda. In 2004, the United Nations Environment Programme (UNEP) released its first international report on marine plastic pollution, urging governments to take action. Meanwhile, in Japan, cleanup activities in Lake Biwa and along the Sea of Japan intensified, with local governments and citizen groups initiating voluntary efforts to reduce marine debris.
Corporate initiatives also emerged, with Procter & Gamble (P&G) launching shampoo bottles made from recycled ocean plastics in 2008, gaining international attention. Meanwhile, scientists conducted the "Drifting Debris Project," identifying the material composition and sources of the North Pacific garbage patch, providing crucial data for addressing marine pollution.
#### 2010s: Expansion of Efforts
In the 2010s, international efforts to address marine plastic pollution advanced further. The Dutch non-profit organization "The Ocean Cleanup" was launched to develop technologies for collecting marine debris. In Japan, the Ministry of the Environment implemented the "Action Plan for Marine Plastic Waste Countermeasures," promoting cleanup activities and recycling technologies in collaboration with local governments and companies.
Corporate activities also saw progress, with Japanese companies like Sekisui Chemical accelerating the development of biodegradable plastics and an increasing number of companies actively promoting products made from recycled materials.
#### 2020s: Technological Innovation and International Cooperation
Entering the 2020s, the "Great Pacific Garbage Patch" remains a severe issue. "The Ocean Cleanup" has set a goal to remove 90% of floating marine plastics by 2040 and has improved its collection systems. To date, more than 19000 tons of plastics have been removed, with enhanced efficiency.
In Japan, Suzuki Motor Corporation launched the "Suzuki Clean Ocean Project" in 2020, equipping outboard motors with microplastic collection devices. Pilot Corporation began selling pens made from recycled ocean plastics, and LIXIL developed "Reviea," a sustainable material using composite plastics and ocean plastics, expanding eco-friendly products.
#### Future Challenges and Prospects
Despite progress, the challenges in addressing the Great Pacific Garbage Patch remain significant, both technically and economically. International cooperation and corporate innovation are key to overcoming these issues. Initiatives like "The Ocean Cleanup" and Japan's Ministry of the Environment's efforts highlight the direction of next-generation environmental technologies while emphasizing the need for waste reduction and widespread recycling technologies.
The history of the Great Pacific Garbage Patch demonstrates the complexity and difficulty of environmental problems, while also emphasizing the potential of human technology and cooperation. Efforts toward a sustainable marine environment are expected to make further progress.
#### 1990s: Discovery and Warning
In 1999, a research group led by Professor Masahisa Kubota of the Faculty of Marine Science at Tokai University discovered a massive garbage patch in the North Pacific Ocean. This band-shaped structure, approximately 1000 km wide, is concentrated between latitudes 20° and 40° north, crossing the Pacific Ocean from east to west. The patch is formed as waste, including plastics and styrofoam, discharged from the U.S. West Coast and Japanese coasts, is carried by currents and winds over months.
Plastics, in particular, have been highlighted as a problem, with microplastics entering marine organisms' bodies and causing adverse effects on entire ecosystems through the food chain. This discovery served as a turning point for international awareness of marine pollution as a global environmental issue, prompting countries to take measures starting in the 2000s.
#### 2000s: Establishing International Frameworks
In the 2000s, marine garbage became a central issue on the international agenda. In 2004, the United Nations Environment Programme (UNEP) released its first international report on marine plastic pollution, urging governments to take action. Meanwhile, in Japan, cleanup activities in Lake Biwa and along the Sea of Japan intensified, with local governments and citizen groups initiating voluntary efforts to reduce marine debris.
Corporate initiatives also emerged, with Procter & Gamble (P&G) launching shampoo bottles made from recycled ocean plastics in 2008, gaining international attention. Meanwhile, scientists conducted the "Drifting Debris Project," identifying the material composition and sources of the North Pacific garbage patch, providing crucial data for addressing marine pollution.
#### 2010s: Expansion of Efforts
In the 2010s, international efforts to address marine plastic pollution advanced further. The Dutch non-profit organization "The Ocean Cleanup" was launched to develop technologies for collecting marine debris. In Japan, the Ministry of the Environment implemented the "Action Plan for Marine Plastic Waste Countermeasures," promoting cleanup activities and recycling technologies in collaboration with local governments and companies.
Corporate activities also saw progress, with Japanese companies like Sekisui Chemical accelerating the development of biodegradable plastics and an increasing number of companies actively promoting products made from recycled materials.
#### 2020s: Technological Innovation and International Cooperation
Entering the 2020s, the "Great Pacific Garbage Patch" remains a severe issue. "The Ocean Cleanup" has set a goal to remove 90% of floating marine plastics by 2040 and has improved its collection systems. To date, more than 19000 tons of plastics have been removed, with enhanced efficiency.
In Japan, Suzuki Motor Corporation launched the "Suzuki Clean Ocean Project" in 2020, equipping outboard motors with microplastic collection devices. Pilot Corporation began selling pens made from recycled ocean plastics, and LIXIL developed "Reviea," a sustainable material using composite plastics and ocean plastics, expanding eco-friendly products.
#### Future Challenges and Prospects
Despite progress, the challenges in addressing the Great Pacific Garbage Patch remain significant, both technically and economically. International cooperation and corporate innovation are key to overcoming these issues. Initiatives like "The Ocean Cleanup" and Japan's Ministry of the Environment's efforts highlight the direction of next-generation environmental technologies while emphasizing the need for waste reduction and widespread recycling technologies.
The history of the Great Pacific Garbage Patch demonstrates the complexity and difficulty of environmental problems, while also emphasizing the potential of human technology and cooperation. Efforts toward a sustainable marine environment are expected to make further progress.
Thursday, February 26, 2026
Coexistence and harmony with the natural environment have become indispensable themes in urban planning and community development. Amidst this, while measures to maintain and conserve the remaining natural environment are proposed, efforts in "environmental restoration"—actively restoring environments destroyed by humans—are gaining momentum.
Coexistence and harmony with the natural environment have become indispensable themes in urban planning and community development. Amidst this, while measures to maintain and conserve the remaining natural environment are proposed, efforts in "environmental restoration"—actively restoring environments destroyed by humans—are gaining momentum.
This trend is becoming increasingly evident even in public works projects, which previously focused solely on development, and the number of environmental restoration-type public works projects is growing.
Headquartered in Niwa District, Aichi Prefecture, MIC Corporation has been engaged in restoring natural environments in forests and watersides since its establishment in 1988, making it a pioneer in this field. The company undertakes projects not only in Japan but also overseas. We spoke with President Fumikazu Maeda (52), who is often out in the field and has a deep tan. Restoring the original natural environment is our theme.
The company currently handles a wide range of services, from surveys, research, planning, and design for natural environment restoration to planting guidance, management, and supplying greening materials. What runs through all this is the philosophy of collecting seeds from plants that were originally native to the land, nurturing them until they can withstand the site's environment, and restoring the area to its natural state. Before founding MIK, President Maeda worked in sales for a landscaping company and was also involved in industrial greening projects.
However, at that time, it was common practice to simply plant non-native trees around factories, resulting in uniform, rather bland stands of trees. He began questioning this approach. He started researching plants that were originally native to the land, such as those found in sacred forests and estate woods, and began encouraging companies to plant these instead. "But simply digging up native species from the mountains and planting them would be completely meaningless.
That would just create another form of environmental destruction." Instead, he adopted a method using "pot seedlings" – saplings grown from acorns and other seeds collected in large quantities from the forest, planted in pots, and nurtured. Pot seedlings allowed obtaining saplings without destroying nature and were convenient to transport. This planting approach led him toward natural environment restoration. He became independent in 1988 and established MIK as an environmental creation venture company.
This method of greening using young seedlings based on vegetation surveys, aimed at natural restoration, is the ecological engineering technique advocated by ecologist Professor Emeritus Akira Miyawaki of Yokohama National University (currently Director of the International Center for Ecology). The restoration of vegetation aiming for "regional natural forests," "climax forests," and "potential natural vegetation" was also the concept behind creating the forest of Meiji Jingu Shrine, which began afforestation in 1915.
President Maeda studied under Professor Miyawaki, and MIKK now practices and promotes the professor's theories. To date, MIKK has collaborated with Professor Miyawaki on vegetation surveys, design, and planting at over 300 locations. These include national highways, bypass roadsides, parks, shopping centers, and schools. Even in harsh environmental conditions, the high survival rate is attributed to planting after seedlings have been grown to a certain size.
Furthermore, their work extends beyond Japan to include tropical rainforest restoration overseas. For Mitsubishi Corporation's rainforest afforestation project in Malaysia from 1991 to 1993, they flew to the site with Professor Miyawaki to conduct surveys. They collected native seeds, began producing bottled seedlings, and handled the entire process from site surveying and design to construction supervision for the planting.
Riparian Restoration Projects. Meanwhile, since 1992, efforts have focused equally on restoring both forests and riparian areas. The "Bestmann System," developed through a 1992 technical partnership with Germany's Bestmann GmbH, has proven highly effective. This system involves installing mats or rolls made of palm fiber, pre-planted with aquatic plants, along water edges.
It enables "vegetated revetments" that protect shorelines through the formation of aquatic plants, rather than the conventional concrete or block revetments used to prevent erosion.
Vegetated revetments offer multiple benefits: the roots of aquatic plants bind the soil to prevent erosion, they provide habitats for fish and birds, and the plants absorb, adsorb, and precipitate nitrogen and phosphorus, helping purify the water. Unlike concrete revetments, they also renew themselves annually through natural cycles, a significant advantage.
"While vegetative revetments can be challenging to implement in many locations due to Japan's numerous fast-flowing river sections, they can be efficiently established. This is achieved by nurturing the plants until they can withstand the environment, similar to standard planting, and by using a coconut fiber planting substrate. This substrate significantly reduces the risk of plant death or erosion, enabling efficient formation of the vegetative revetment."
The byproduct, coconut fiber, is imported from Southeast Asia where it was nearly discarded and reused. It naturally decomposes in water, but by that time, the plants have firmly established their roots. Selecting the introduced plant species is also crucial in this riparian restoration. Beyond choosing native species, ecologically optimal plant species are selected while considering factors like water quality and flow velocity.
The company maintains a 2,000-square-meter experimental research field and an 8,000-square-meter production field. There, they cultivate over 25 types of aquatic plants at any given time, including reeds, cattails, and ornamental plants like Japanese water lilies for color combinations. "Some species require about three years of cultivation before they can be deployed on-site. To meet various needs, we engage in a certain amount of forward-looking production."
Increased orders from government agencies. Previously, most orders came from private sources like factories, power plants, and corporate afforestation projects. Now, however, 70% of orders originate from government entities. Particularly in the field of riparian restoration, concerns about the ecological impact of concrete revetments have grown annually. Concurrently, the 1998 revision of the River Act added the perspective of "river environment improvement and conservation" to river administration, which had previously focused solely on flood control and water utilization.
The Ministry of Construction, which manages rivers, and prefectural governments are now obligated to formulate "River Improvement Plans" reflecting the voices of local governments and residents, and to disclose information about projects. "Because of these factors, even on rivers with concrete revetments, the use of the Bestman System is increasing. It's positioned as an auxiliary method for creating diverse low-water channels, part of a more natural river design approach, to make the concrete less conspicuous. I believe we are entering an era where construction cannot begin unless the natural environment aspects are clearly defined at local explanatory meetings."
As of December 1998, the Bestman System had already been adopted at 176 locations, with over 40 new sites added annually since 1996. Forests created by the company naturally become more abundant without human intervention within three years, while riparian areas achieve this within one year.
"Our job is solely to write the script," President Maeda states definitively. Plants introduced to restore original vegetation gradually blend into the surrounding environment over time, forming plant communities. The company stands out as one of the few capable of undertaking true "nature restoration" projects, intersecting the functionality of civil engineering (like flood prevention) with the aesthetic expertise of landscape architects.
As environmental issues and awareness of nature deepen, the company is likely to gain even more prominence.
This trend is becoming increasingly evident even in public works projects, which previously focused solely on development, and the number of environmental restoration-type public works projects is growing.
Headquartered in Niwa District, Aichi Prefecture, MIC Corporation has been engaged in restoring natural environments in forests and watersides since its establishment in 1988, making it a pioneer in this field. The company undertakes projects not only in Japan but also overseas. We spoke with President Fumikazu Maeda (52), who is often out in the field and has a deep tan. Restoring the original natural environment is our theme.
The company currently handles a wide range of services, from surveys, research, planning, and design for natural environment restoration to planting guidance, management, and supplying greening materials. What runs through all this is the philosophy of collecting seeds from plants that were originally native to the land, nurturing them until they can withstand the site's environment, and restoring the area to its natural state. Before founding MIK, President Maeda worked in sales for a landscaping company and was also involved in industrial greening projects.
However, at that time, it was common practice to simply plant non-native trees around factories, resulting in uniform, rather bland stands of trees. He began questioning this approach. He started researching plants that were originally native to the land, such as those found in sacred forests and estate woods, and began encouraging companies to plant these instead. "But simply digging up native species from the mountains and planting them would be completely meaningless.
That would just create another form of environmental destruction." Instead, he adopted a method using "pot seedlings" – saplings grown from acorns and other seeds collected in large quantities from the forest, planted in pots, and nurtured. Pot seedlings allowed obtaining saplings without destroying nature and were convenient to transport. This planting approach led him toward natural environment restoration. He became independent in 1988 and established MIK as an environmental creation venture company.
This method of greening using young seedlings based on vegetation surveys, aimed at natural restoration, is the ecological engineering technique advocated by ecologist Professor Emeritus Akira Miyawaki of Yokohama National University (currently Director of the International Center for Ecology). The restoration of vegetation aiming for "regional natural forests," "climax forests," and "potential natural vegetation" was also the concept behind creating the forest of Meiji Jingu Shrine, which began afforestation in 1915.
President Maeda studied under Professor Miyawaki, and MIKK now practices and promotes the professor's theories. To date, MIKK has collaborated with Professor Miyawaki on vegetation surveys, design, and planting at over 300 locations. These include national highways, bypass roadsides, parks, shopping centers, and schools. Even in harsh environmental conditions, the high survival rate is attributed to planting after seedlings have been grown to a certain size.
Furthermore, their work extends beyond Japan to include tropical rainforest restoration overseas. For Mitsubishi Corporation's rainforest afforestation project in Malaysia from 1991 to 1993, they flew to the site with Professor Miyawaki to conduct surveys. They collected native seeds, began producing bottled seedlings, and handled the entire process from site surveying and design to construction supervision for the planting.
Riparian Restoration Projects. Meanwhile, since 1992, efforts have focused equally on restoring both forests and riparian areas. The "Bestmann System," developed through a 1992 technical partnership with Germany's Bestmann GmbH, has proven highly effective. This system involves installing mats or rolls made of palm fiber, pre-planted with aquatic plants, along water edges.
It enables "vegetated revetments" that protect shorelines through the formation of aquatic plants, rather than the conventional concrete or block revetments used to prevent erosion.
Vegetated revetments offer multiple benefits: the roots of aquatic plants bind the soil to prevent erosion, they provide habitats for fish and birds, and the plants absorb, adsorb, and precipitate nitrogen and phosphorus, helping purify the water. Unlike concrete revetments, they also renew themselves annually through natural cycles, a significant advantage.
"While vegetative revetments can be challenging to implement in many locations due to Japan's numerous fast-flowing river sections, they can be efficiently established. This is achieved by nurturing the plants until they can withstand the environment, similar to standard planting, and by using a coconut fiber planting substrate. This substrate significantly reduces the risk of plant death or erosion, enabling efficient formation of the vegetative revetment."
The byproduct, coconut fiber, is imported from Southeast Asia where it was nearly discarded and reused. It naturally decomposes in water, but by that time, the plants have firmly established their roots. Selecting the introduced plant species is also crucial in this riparian restoration. Beyond choosing native species, ecologically optimal plant species are selected while considering factors like water quality and flow velocity.
The company maintains a 2,000-square-meter experimental research field and an 8,000-square-meter production field. There, they cultivate over 25 types of aquatic plants at any given time, including reeds, cattails, and ornamental plants like Japanese water lilies for color combinations. "Some species require about three years of cultivation before they can be deployed on-site. To meet various needs, we engage in a certain amount of forward-looking production."
Increased orders from government agencies. Previously, most orders came from private sources like factories, power plants, and corporate afforestation projects. Now, however, 70% of orders originate from government entities. Particularly in the field of riparian restoration, concerns about the ecological impact of concrete revetments have grown annually. Concurrently, the 1998 revision of the River Act added the perspective of "river environment improvement and conservation" to river administration, which had previously focused solely on flood control and water utilization.
The Ministry of Construction, which manages rivers, and prefectural governments are now obligated to formulate "River Improvement Plans" reflecting the voices of local governments and residents, and to disclose information about projects. "Because of these factors, even on rivers with concrete revetments, the use of the Bestman System is increasing. It's positioned as an auxiliary method for creating diverse low-water channels, part of a more natural river design approach, to make the concrete less conspicuous. I believe we are entering an era where construction cannot begin unless the natural environment aspects are clearly defined at local explanatory meetings."
As of December 1998, the Bestman System had already been adopted at 176 locations, with over 40 new sites added annually since 1996. Forests created by the company naturally become more abundant without human intervention within three years, while riparian areas achieve this within one year.
"Our job is solely to write the script," President Maeda states definitively. Plants introduced to restore original vegetation gradually blend into the surrounding environment over time, forming plant communities. The company stands out as one of the few capable of undertaking true "nature restoration" projects, intersecting the functionality of civil engineering (like flood prevention) with the aesthetic expertise of landscape architects.
As environmental issues and awareness of nature deepen, the company is likely to gain even more prominence.
「自然環境との共生・調和」はいまや、都市計画、まちづくりといった場で欠くことのできないテーマとなっている。
「自然環境との共生・調和」はいまや、都市計画、まちづくりといった場で欠くことのできないテーマとなっている。
そうした中、現在残されている自然環境を維持・保全する方策が提案される一方で、人間によって破壊された環境を積極的に復元していく「環境修復」の取り組みが盛んになりつつある。
これまで開発一辺倒だった公共事業においても、その傾向は色濃く現われ始めており、環境修復型の公共事業も数を増やしている。
愛知県丹羽郡に本社を置く「株式会社ミック」は、88年に設立以来、森や水辺における自然環境復元に取り組んでいる、いわばこの分野のバイオニア。
日本国内のみならず海外でも事業を手掛けている。
現場を飛び回り真っ黒に日焼けした前田文和社長（52）に話を伺った。
本来ある自然環境の復元がテーマ。
同社は現在、自然環境復元の調査・研究・企画・設計・植樹指導・管理から緑化資材の供給まで幅広い事業を手掛けているが、そこを貫いているのは、その土地に本来自生していた植物の種子を採取し、現場の環境に耐えうるまで育て、本来あるべき姿に戻していこうという思想である。
ミック設立以前、造園業の営業をしていた前田社長は、工業の緑化なども手掛けていた。
しかし、その当時は工場周辺にとりあえず外来種の木などを植える場合が多く、画一的でなんとも味気ない立ち木になることに疑問を持ち始めた。
鎖守の森や屋敷林などからもともとその土地に自生していた植物を調べ、企業にもこれらを植樹しようと動きだした。
「とはいっても、自生種を山から掘り出してきて植えるのではまったく意味がない。
それはそれでまた別の自然破壊を生み出すことになってしまいます」そこで、森に大量に落ちているドングリなどを拾い集め、鉢に植え、育てた苗木「ポット苗」による手法を使った。
自然を破壊せずに苗木を得ることができ、持ち運びにも便利なボット苗。
これらによる植樹をきっかけに、自然環境復元へと傾いていき、88年に独立、環境創造型ベンチャー企業という形でミックを設立した。
こうした自然復元を目的とした、植生調査に基づく幼苗による緑化方法は、生態学者の宮脇昭横浜国大名誉教授（現・国際生態学センター研究所長）が提唱した生態学的工法。
「地域の自然の森」「極相林」「潜在自然植生」を指向する植生の復元は、大正4年から造林した明治神宮の森を作る際のコンセプトにもなっていたという。
この宮脇教授に前田社長も師事、教授の理論をミックが実践、推進する形となっている。
これまでに、宮脇教授とも共同して植生の調査、設計、植樹を手掛けた数は、300カ所以上にものぼる。
国道やバイバス脇、公園、ショッピングセンター、学校など。
環境条件の厳しいような場所でも、ある程度まで育成してから植樹するため活着率は高いという。
また国内だけでなく、海外での熱帯雨林復元なども手掛けている。
三菱商事が91～93年にかけて実施したマレーシアの熱帯雨林における植林では、宮脇教授と共に現地に飛び、調査を実施。
自生種の種を集め、ボット苗の生産を始め、植樹のための現地測量から設計、工事監理までの一連の作業を担当した。
水辺の復元事業。
一方、92年からは森と同時に水辺の復元にも力を入れている。
そとでは92年に独のベストマン社と技術提携した「ベストマンシステム」が力を発揮している。
このシステムは、ヤシ繊維製のマットやロールにあらかじめ水生植物を植えつけたものを水際に設置するという工法。
これまで一般的に行なわれてきた岸辺の浸食を受けないようコンクリートやプロックで固める護岸工事ではなく、水生植物の形成により護岸する「植生護岸」を可能にする。
植生護岸には、水生植物の根が土壌を緊縛することによる浸食防止のほか、魚や鳥などの生息場所の提供、植物が窒素やリンを吸収・吸着・沈殿する水質浄化の働きなども見込める。
またコンクリート護岸とは違い、自然のサイクルで毎年新しく更新もされていくのも大きなメリット。
「日本の河川は急流区が多いので、適応する場所など植生護岸は難しい面もあるのですが、植栽と同様にある程度の環境に耐えられるまで育てること、ヤシ繊維の植生基盤が整っていることで、枯死・流失などの危険性が低く、効率的に植生護岸を形成することができます」。
副産物であるヤシ繊維は東南アジアで廃棄寸前のものを輸入、再利用。
水の中で自然に分解されていくが、そのころに植物はしっかりと根を伸ばしている仕組みだ。
この水辺環境復元でも重視するのは導入植物種の選択。
自生種であることのほか、水質や流速度などを考慮に入れながら生態的に最も適した植物種を選択する。
同社は2000平方メートルの実験研究用圃場と8000平方メートルの生産圃場を持ち、そこでヨシ、マコモなどのほか、彩りとして組み合わせるカキッバタなど常時25種以上の水生植物を育成している。
「中には現場に出すまで3年ぐらいの育成期間がかかるものもあります。
いろいろなニーズに応えるためにある程度見込み生産という形になります」。
行政からの発注増。
以前は工場や発電所、企業の植林など民間からの発注がほとんどだったが、現在、発注元の7割が行政サイドからのものだという。
とくに水辺環境修復の分野は、コンクリート護岸の生態系に対する影響を懸念する声が年々大きくなっており、併せてこれまで治水と利水が目的だった河川行政でも98年に河川法が改正され、「河川環境の整備と保全」の視点が加えられた。
河川管理者である建設省、都道府県に対する地方自治体や地域住民の声を反映した「河川整備計画」の策定、事業に関する情報公開なども義務づけられている。
「こうしたこともあって、コンクリート護岸の河川でもなるべくコンクリートが目立たないように多自然型川づくりの多様な低水路形成のための補助工法という位置づけでの採用も増えています。
地元説明会などでも自然環境の部分をはっきりさせないと工事に着手できない時代になりつつあると思います」。
ベストマンシステムは98年12月現在、すでに176カ所で採用されており、とくに96年以降は毎年40カ所以上での採用が続いている。
同社が手掛ける森は3年後、水辺は1年後には人間の介入なしに自然に豊かさを増していく。
「私たちの仕事は脚本だけをつくること」と前田社長は言い切る。
本来あった植生の復元を目的に施された植物は、年月を重ねるごとに周辺環境に溶け込んでいき、植物群落を形成していくのだ。
河川氾濫を防ぐといった土木としての機能性、造園業者が得意とする景観性、それぞれを交差しつつ、本当の意味での「自然復元」事業を手掛けることのできる数少ない会社として注目される。
今後、環境問題、自然への認識が深まるほどに、ますます脚光を浴びることになりそうだ。
そうした中、現在残されている自然環境を維持・保全する方策が提案される一方で、人間によって破壊された環境を積極的に復元していく「環境修復」の取り組みが盛んになりつつある。
これまで開発一辺倒だった公共事業においても、その傾向は色濃く現われ始めており、環境修復型の公共事業も数を増やしている。
愛知県丹羽郡に本社を置く「株式会社ミック」は、88年に設立以来、森や水辺における自然環境復元に取り組んでいる、いわばこの分野のバイオニア。
日本国内のみならず海外でも事業を手掛けている。
現場を飛び回り真っ黒に日焼けした前田文和社長（52）に話を伺った。
本来ある自然環境の復元がテーマ。
同社は現在、自然環境復元の調査・研究・企画・設計・植樹指導・管理から緑化資材の供給まで幅広い事業を手掛けているが、そこを貫いているのは、その土地に本来自生していた植物の種子を採取し、現場の環境に耐えうるまで育て、本来あるべき姿に戻していこうという思想である。
ミック設立以前、造園業の営業をしていた前田社長は、工業の緑化なども手掛けていた。
しかし、その当時は工場周辺にとりあえず外来種の木などを植える場合が多く、画一的でなんとも味気ない立ち木になることに疑問を持ち始めた。
鎖守の森や屋敷林などからもともとその土地に自生していた植物を調べ、企業にもこれらを植樹しようと動きだした。
「とはいっても、自生種を山から掘り出してきて植えるのではまったく意味がない。
それはそれでまた別の自然破壊を生み出すことになってしまいます」そこで、森に大量に落ちているドングリなどを拾い集め、鉢に植え、育てた苗木「ポット苗」による手法を使った。
自然を破壊せずに苗木を得ることができ、持ち運びにも便利なボット苗。
これらによる植樹をきっかけに、自然環境復元へと傾いていき、88年に独立、環境創造型ベンチャー企業という形でミックを設立した。
こうした自然復元を目的とした、植生調査に基づく幼苗による緑化方法は、生態学者の宮脇昭横浜国大名誉教授（現・国際生態学センター研究所長）が提唱した生態学的工法。
「地域の自然の森」「極相林」「潜在自然植生」を指向する植生の復元は、大正4年から造林した明治神宮の森を作る際のコンセプトにもなっていたという。
この宮脇教授に前田社長も師事、教授の理論をミックが実践、推進する形となっている。
これまでに、宮脇教授とも共同して植生の調査、設計、植樹を手掛けた数は、300カ所以上にものぼる。
国道やバイバス脇、公園、ショッピングセンター、学校など。
環境条件の厳しいような場所でも、ある程度まで育成してから植樹するため活着率は高いという。
また国内だけでなく、海外での熱帯雨林復元なども手掛けている。
三菱商事が91～93年にかけて実施したマレーシアの熱帯雨林における植林では、宮脇教授と共に現地に飛び、調査を実施。
自生種の種を集め、ボット苗の生産を始め、植樹のための現地測量から設計、工事監理までの一連の作業を担当した。
水辺の復元事業。
一方、92年からは森と同時に水辺の復元にも力を入れている。
そとでは92年に独のベストマン社と技術提携した「ベストマンシステム」が力を発揮している。
このシステムは、ヤシ繊維製のマットやロールにあらかじめ水生植物を植えつけたものを水際に設置するという工法。
これまで一般的に行なわれてきた岸辺の浸食を受けないようコンクリートやプロックで固める護岸工事ではなく、水生植物の形成により護岸する「植生護岸」を可能にする。
植生護岸には、水生植物の根が土壌を緊縛することによる浸食防止のほか、魚や鳥などの生息場所の提供、植物が窒素やリンを吸収・吸着・沈殿する水質浄化の働きなども見込める。
またコンクリート護岸とは違い、自然のサイクルで毎年新しく更新もされていくのも大きなメリット。
「日本の河川は急流区が多いので、適応する場所など植生護岸は難しい面もあるのですが、植栽と同様にある程度の環境に耐えられるまで育てること、ヤシ繊維の植生基盤が整っていることで、枯死・流失などの危険性が低く、効率的に植生護岸を形成することができます」。
副産物であるヤシ繊維は東南アジアで廃棄寸前のものを輸入、再利用。
水の中で自然に分解されていくが、そのころに植物はしっかりと根を伸ばしている仕組みだ。
この水辺環境復元でも重視するのは導入植物種の選択。
自生種であることのほか、水質や流速度などを考慮に入れながら生態的に最も適した植物種を選択する。
同社は2000平方メートルの実験研究用圃場と8000平方メートルの生産圃場を持ち、そこでヨシ、マコモなどのほか、彩りとして組み合わせるカキッバタなど常時25種以上の水生植物を育成している。
「中には現場に出すまで3年ぐらいの育成期間がかかるものもあります。
いろいろなニーズに応えるためにある程度見込み生産という形になります」。
行政からの発注増。
以前は工場や発電所、企業の植林など民間からの発注がほとんどだったが、現在、発注元の7割が行政サイドからのものだという。
とくに水辺環境修復の分野は、コンクリート護岸の生態系に対する影響を懸念する声が年々大きくなっており、併せてこれまで治水と利水が目的だった河川行政でも98年に河川法が改正され、「河川環境の整備と保全」の視点が加えられた。
河川管理者である建設省、都道府県に対する地方自治体や地域住民の声を反映した「河川整備計画」の策定、事業に関する情報公開なども義務づけられている。
「こうしたこともあって、コンクリート護岸の河川でもなるべくコンクリートが目立たないように多自然型川づくりの多様な低水路形成のための補助工法という位置づけでの採用も増えています。
地元説明会などでも自然環境の部分をはっきりさせないと工事に着手できない時代になりつつあると思います」。
ベストマンシステムは98年12月現在、すでに176カ所で採用されており、とくに96年以降は毎年40カ所以上での採用が続いている。
同社が手掛ける森は3年後、水辺は1年後には人間の介入なしに自然に豊かさを増していく。
「私たちの仕事は脚本だけをつくること」と前田社長は言い切る。
本来あった植生の復元を目的に施された植物は、年月を重ねるごとに周辺環境に溶け込んでいき、植物群落を形成していくのだ。
河川氾濫を防ぐといった土木としての機能性、造園業者が得意とする景観性、それぞれを交差しつつ、本当の意味での「自然復元」事業を手掛けることのできる数少ない会社として注目される。
今後、環境問題、自然への認識が深まるほどに、ますます脚光を浴びることになりそうだ。
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Against the backdrop of recycling-related legislation, including the Container and Packaging Recycling Act, the Home Appliance Recycling Act, and the upcoming Automobile Recycling Act, the momentum for recycling waste plastics has been growing steadily in recent years. However, 25 years ago, when the term "recycling" itself was not yet commonplace, Pana Chemical Co., Ltd. established a material recycling system for expanded polystyrene (EPS). Since then, the company has expanded its business to target various other waste plastics, such as waste PET. Among waste plastic recycling methods, material recycling is considered difficult to make profitable as a business due to challenges like securing markets for recycled products. Yet, Pana Chemical has achieved significant success in this area. We spoke with President Shihei Inukai (pictured upper right).
The oil crisis sparked the start of the recycling business. The company began in 1976 as a sales agent for Matsushita Ryuko's chemical products, handling all types of plastic raw materials. However, it faced major difficulties right from the start. The oil crisis caused an extreme shortage of the plastic raw materials it handled. Naturally, customers complained, but there was nothing they could do.
"It was during this desperate time that I conceived the idea of polystyrene foam recycling. I saw it when passing by the Tsukiji Central Wholesale Market and witnessed thick black smoke billowing from an incinerator chimney burning polystyrene foam," said Inukai. At that time, the market was transitioning from wooden to polystyrene foam fish crates. Returning these empty, used fish boxes to their origin markets incurred transportation costs, so they were incinerated or landfilled at the market. "This is such a waste," thought Mr. Inukai, a plastics expert. Although the term "recycling" didn't exist then, waste plastics like scrap from molds, molding, and raw material manufacturers—spools, runners, and non-conforming products—were already being collected and reprocessed. At its peak, there were reportedly over 1,000 recycling companies nationwide. As labor costs, including sorting, rose and profitability declined, the recycling business began to flourish again. It was perh
aps only natural that when Inukai saw polystyrene foam being incinerated, he thought that heating it to melt it might make it usable as raw material. He immediately set about developing a dedicated processing machine for polystyrene foam. The design was based on existing plastic recycling equipment, such as that for polyethylene chloride. The machine melted polystyrene foam using electric heat and processed it into sheet-like polystyrene resin raw material. Development took two years. The first model used heat from a gas burner, but considering risks like flammability, it was improved to an electric system. Currently, models utilizing friction heat are also available.
The company purchases the machines for a fee and exports them overseas. At that time, dedicated polystyrene foam processing machines did not exist, so the novelty of the machinery alone likely contributed to its sales. However, the key to the company's rapid growth was the establishment of a recycling system. This recycling system continues to function as follows today: The company sells the processing machines to markets, supermarkets, waste disposal companies, and local governments. Styrofoam fed into the machine is crushed into pieces approximately 3 cm square (depending on the model) and discharged as Styrofoam blocks about 30 cm wide and 1 meter long. The company purchases all of this Styrofoam, which has been reduced to about 1/50th of its original volume, for a fee. This means that for users, what was previously a disposal cost becomes a source of profit.
"Depending on the market price of polystyrene resin and the processing volume, the initial investment can be recouped in about one to two years," says Mr. Inukai. Initially, there were suspicions that the company might only sell the equipment without purchasing the recycled material. In some cases, customers were even made to sign a pledge to sell the material simultaneously with the equipment sales contract. However, by emphasizing that the primary goal was not just selling the processing machines but purchasing the raw materials, and by making this proposal, they first delivered four units to Tsukiji Market. Seeing this result led to an overwhelming influx of inquiries from fish markets nationwide. Furthermore, since it is a system where materials are purchased for a fee, securing a supply of recycled raw materials is the company's lifeline. "You could say we effectively own recycled raw material factories nationwide, and the responsibility is immense. If we can sell recycl
ed materials at a high price, we can purchase them at a higher price from users. We consider that our mission," stated President Inukai. Simultaneously with product sales, they advanced market development. President Inukai chose overseas markets. In Japan, even today, due to the Food Sanitation Law, Safety Law, JIS standards, and other regulations, developing applications for recycled polystyrene foam materials—such as food containers, trays, toys, buttons, and building materials—remains challenging. Therefore, we sought sales channels in Taiwan, Hong Kong, and China, where regulations were fewer and plastic was beginning to gain widespread use. President Inukai chose overseas markets. In Japan, even now, regulations like the Food Sanitation Act, Safety Standards Act, and JIS standards make it difficult to develop applications for recycled polystyrene foam materials in products like food containers, trays, toys, buttons, and building materials. Therefore, he boldly sough
t sales channels in Taiwan, Hong Kong, and China, where regulations were lighter and plastics were gaining traction. In fact, the demand for recycled materials for toys, stationery, trays, and more was surprisingly high, even surprising President Inukai. Among these, video cassette cases saw a particularly rapid increase in demand. Recycled materials for video cassette cases were in high demand, with buyers wanting as much as possible. Recycled materials were continuously transported from processing sites to ports and exported. This situation persists today, with some businesses placing orders for 10,000 or 20,000 tons. Currently, the company's processing machines are installed at "Ecolopace," a seafood and produce wholesaler. With a processing capacity of approximately 400 kg per hour, these machines are deployed at 1,200 locations nationwide, including the most lucrative markets, major department stores, processing manufacturers, and intermediate waste treatment facilities
. The monthly recovery volume is 2,500 tons, totaling 30,000 tons annually. Its domestic market share for polystyrene recycled ingots reaches a remarkable 80%, which is truly significant. By implementing a paid purchase system for recycled materials and developing overseas sales channels, they have built a system that benefits all parties: the equipment users, Pana Chemical, and overseas businesses. "Recycling business succeeds only when it is economically viable," states Mr. Inukai.
Furthermore, the expanded polystyrene "Clean Heat Packer" has a processing capacity ranging from 10kg/hour to 1000kg/hour. Heated material circulates within the melter body, and odors are treated using catalytic activated carbon. Its compact design has led to its installation at 400 locations, including supermarkets and department stores. Aiming to collect and export 3,000 tons of polystyrene and 5,000 tons of waste plastic, the company similarly developed shredders and volume reduction machines for its waste plastic recycling business, launched after polystyrene. It currently processes 2,000 tons monthly. Equipment is installed at processing manufacturers and intermediate treatment facilities, while recycled raw materials are primarily sold overseas to markets like Hong Kong and China. There is a constant shortage of recycled raw materials for common resins like polypropylene, polyethylene, and PVC. Furthermore, demand exists not only for these single-material resins but als
o for mixed resins as raw materials for railroad ties, building materials, and agricultural supplies. Additionally, the company launched a PET bottle recycling business in 2001. It has delivered PET bottle flake recycling systems to 100 locations nationwide and is advancing collection by assigning fixed responsibility areas. For recycled applications, the company envisions recycling PET bottles into textiles like clothing in China. It has begun efforts to establish a system capable of collecting and recycling 5,000 tons of PET bottles monthly in the future. Currently, the company's sales composition is 70% from exporting recycled raw materials, 20% from new equipment sales and replacements (typically renewed every 5 years), and the remainder from sales of chemical products, its former core business. Sales for the fiscal year ending February 1996 were ¥2.4 billion, growing to ¥3.0 billion by February 2002. The company projects ¥4.0 billion for the next fiscal year, indicat
ing steady growth. The immediate goal is to collect and export 3,000 tons of expanded polystyrene and 5,000 tons of waste plastic. "Overseas demand for recycled materials remains very high, so we are focusing all our efforts on collection. We also receive many inquiries about equipment from Europe and the US. However, indiscriminate sales could disrupt the supply-demand balance for recycled materials and cause prices to collapse. We are currently examining recycling systems, including those in Europe and the US."
The oil crisis sparked the start of the recycling business. The company began in 1976 as a sales agent for Matsushita Ryuko's chemical products, handling all types of plastic raw materials. However, it faced major difficulties right from the start. The oil crisis caused an extreme shortage of the plastic raw materials it handled. Naturally, customers complained, but there was nothing they could do.
"It was during this desperate time that I conceived the idea of polystyrene foam recycling. I saw it when passing by the Tsukiji Central Wholesale Market and witnessed thick black smoke billowing from an incinerator chimney burning polystyrene foam," said Inukai. At that time, the market was transitioning from wooden to polystyrene foam fish crates. Returning these empty, used fish boxes to their origin markets incurred transportation costs, so they were incinerated or landfilled at the market. "This is such a waste," thought Mr. Inukai, a plastics expert. Although the term "recycling" didn't exist then, waste plastics like scrap from molds, molding, and raw material manufacturers—spools, runners, and non-conforming products—were already being collected and reprocessed. At its peak, there were reportedly over 1,000 recycling companies nationwide. As labor costs, including sorting, rose and profitability declined, the recycling business began to flourish again. It was perh
aps only natural that when Inukai saw polystyrene foam being incinerated, he thought that heating it to melt it might make it usable as raw material. He immediately set about developing a dedicated processing machine for polystyrene foam. The design was based on existing plastic recycling equipment, such as that for polyethylene chloride. The machine melted polystyrene foam using electric heat and processed it into sheet-like polystyrene resin raw material. Development took two years. The first model used heat from a gas burner, but considering risks like flammability, it was improved to an electric system. Currently, models utilizing friction heat are also available.
The company purchases the machines for a fee and exports them overseas. At that time, dedicated polystyrene foam processing machines did not exist, so the novelty of the machinery alone likely contributed to its sales. However, the key to the company's rapid growth was the establishment of a recycling system. This recycling system continues to function as follows today: The company sells the processing machines to markets, supermarkets, waste disposal companies, and local governments. Styrofoam fed into the machine is crushed into pieces approximately 3 cm square (depending on the model) and discharged as Styrofoam blocks about 30 cm wide and 1 meter long. The company purchases all of this Styrofoam, which has been reduced to about 1/50th of its original volume, for a fee. This means that for users, what was previously a disposal cost becomes a source of profit.
"Depending on the market price of polystyrene resin and the processing volume, the initial investment can be recouped in about one to two years," says Mr. Inukai. Initially, there were suspicions that the company might only sell the equipment without purchasing the recycled material. In some cases, customers were even made to sign a pledge to sell the material simultaneously with the equipment sales contract. However, by emphasizing that the primary goal was not just selling the processing machines but purchasing the raw materials, and by making this proposal, they first delivered four units to Tsukiji Market. Seeing this result led to an overwhelming influx of inquiries from fish markets nationwide. Furthermore, since it is a system where materials are purchased for a fee, securing a supply of recycled raw materials is the company's lifeline. "You could say we effectively own recycled raw material factories nationwide, and the responsibility is immense. If we can sell recycl
ed materials at a high price, we can purchase them at a higher price from users. We consider that our mission," stated President Inukai. Simultaneously with product sales, they advanced market development. President Inukai chose overseas markets. In Japan, even today, due to the Food Sanitation Law, Safety Law, JIS standards, and other regulations, developing applications for recycled polystyrene foam materials—such as food containers, trays, toys, buttons, and building materials—remains challenging. Therefore, we sought sales channels in Taiwan, Hong Kong, and China, where regulations were fewer and plastic was beginning to gain widespread use. President Inukai chose overseas markets. In Japan, even now, regulations like the Food Sanitation Act, Safety Standards Act, and JIS standards make it difficult to develop applications for recycled polystyrene foam materials in products like food containers, trays, toys, buttons, and building materials. Therefore, he boldly sough
t sales channels in Taiwan, Hong Kong, and China, where regulations were lighter and plastics were gaining traction. In fact, the demand for recycled materials for toys, stationery, trays, and more was surprisingly high, even surprising President Inukai. Among these, video cassette cases saw a particularly rapid increase in demand. Recycled materials for video cassette cases were in high demand, with buyers wanting as much as possible. Recycled materials were continuously transported from processing sites to ports and exported. This situation persists today, with some businesses placing orders for 10,000 or 20,000 tons. Currently, the company's processing machines are installed at "Ecolopace," a seafood and produce wholesaler. With a processing capacity of approximately 400 kg per hour, these machines are deployed at 1,200 locations nationwide, including the most lucrative markets, major department stores, processing manufacturers, and intermediate waste treatment facilities
. The monthly recovery volume is 2,500 tons, totaling 30,000 tons annually. Its domestic market share for polystyrene recycled ingots reaches a remarkable 80%, which is truly significant. By implementing a paid purchase system for recycled materials and developing overseas sales channels, they have built a system that benefits all parties: the equipment users, Pana Chemical, and overseas businesses. "Recycling business succeeds only when it is economically viable," states Mr. Inukai.
Furthermore, the expanded polystyrene "Clean Heat Packer" has a processing capacity ranging from 10kg/hour to 1000kg/hour. Heated material circulates within the melter body, and odors are treated using catalytic activated carbon. Its compact design has led to its installation at 400 locations, including supermarkets and department stores. Aiming to collect and export 3,000 tons of polystyrene and 5,000 tons of waste plastic, the company similarly developed shredders and volume reduction machines for its waste plastic recycling business, launched after polystyrene. It currently processes 2,000 tons monthly. Equipment is installed at processing manufacturers and intermediate treatment facilities, while recycled raw materials are primarily sold overseas to markets like Hong Kong and China. There is a constant shortage of recycled raw materials for common resins like polypropylene, polyethylene, and PVC. Furthermore, demand exists not only for these single-material resins but als
o for mixed resins as raw materials for railroad ties, building materials, and agricultural supplies. Additionally, the company launched a PET bottle recycling business in 2001. It has delivered PET bottle flake recycling systems to 100 locations nationwide and is advancing collection by assigning fixed responsibility areas. For recycled applications, the company envisions recycling PET bottles into textiles like clothing in China. It has begun efforts to establish a system capable of collecting and recycling 5,000 tons of PET bottles monthly in the future. Currently, the company's sales composition is 70% from exporting recycled raw materials, 20% from new equipment sales and replacements (typically renewed every 5 years), and the remainder from sales of chemical products, its former core business. Sales for the fiscal year ending February 1996 were ¥2.4 billion, growing to ¥3.0 billion by February 2002. The company projects ¥4.0 billion for the next fiscal year, indicat
ing steady growth. The immediate goal is to collect and export 3,000 tons of expanded polystyrene and 5,000 tons of waste plastic. "Overseas demand for recycled materials remains very high, so we are focusing all our efforts on collection. We also receive many inquiries about equipment from Europe and the US. However, indiscriminate sales could disrupt the supply-demand balance for recycled materials and cause prices to collapse. We are currently examining recycling systems, including those in Europe and the US."
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容器包装リサイクル法を始め、家電リサイクル法や施行予定の自動車リサイクル法など、リサイクル関連法の整備を背景に、近年ますますリサイクル機運が高まっている廃プラスチック。しかし、リサイクルという言葉すら一般的ではなかった25年前に、発泡スチロールのマテリアルリサイクルシステムを確立し、その後、廃PETなど各種廃プラスチックもターゲットに事業を展開しているのが株式会社パナ・ケミカル。廃プラスチック類のリサイクル中でも、マテリアルリサイクルは、再生品の供給先確保などで、事業として採算ベースに乗せるのは難しいとされるが、大きな成功を収めている。社長の犬飼璽平さん（右上の写真）に話を聞いた。
石油ショックを機にリサイクル事業開始。
同社は1976年、松下竜工の化成品販売代理店として、プラスチック原料全般の販売をスタートさせた。しかし、設立当初から大きな困難にぶつかった。折からの石油ショックにより、取り扱い商品のプラスチック原料が極度の品不足に陥ってしまったのだ。当然、取引先からは責められるがどうしようもなかった。
「そんな追い詰められた時期に思いついたのが発泡スチロールのリサイクルでした。築地の中央卸売市場の側を通りかかった際、焼却炉の煙突からもうもうと黒煙をあげて発泡スチロールを焼却しているのを目にした時でした」（犬飼さん）
市場では当時、ちょうど魚箱が木から発泡スチロールへと普及が進んでいた時期だった。それら使用済みの空魚箱は産地市場へ持ち帰ると輸送費がかかるため、市場で焼却、あるいは埋立処理されていた。
「これは、もったいない」とプラスチックの専門家である犬飼さんは考えた。リサイクルという言葉はなかったものの当時から、金型や成型、原料メーカーから出るスプールやランナーといった端材、規格外品などの廃プラスチックは回収され、再生されていた。最盛期には全国に再生業者が1000社以上あったという。分別を始めとした人件費が高くなり、採算が合わなくなるにつれ再度リサイクル事業が盛んに行われていた。犬飼さんが、発泡スチロールが焼却されているのを見て、熱を加えて溶かせば原料として使えるかもと考えたのは至極当然のことといえるかもしれない。
そこで早速取り掛かったのが発泡スチロール専用の処理機開発だ。設計の基本となったのは、すでにあった塩化ポリエチレンなどプラスチックの再生装置。電熱などにより発泡スチロールを溶かし、板状のスチロール樹脂原料として処理するもの。2年をかけて開発に取り組んだ。一号機はガスバーナーによる熱を利用していたが、引火の危険性なども考慮して、電気式へ改良、現在は摩擦熱を利用して機種なども取り揃えている。
有償で買い上げ、海外へ輸出。
その当時、発泡スチロール専用処理機というものはなかったので、もちろん機械の新規性だけでもそれなりに売れたでしょう。しかし、それ以上にリサイクルシステムを構築したことが同社の躍進の鍵となりました。
現在も同社のリサイクルシステムはこのように機能しています。処理機を市場やスーパー、廃棄物処理業者、自治体などに購入してもらいます。処理機に投入された発泡スチロールは、機種によって異なりますが、約3センチ四方に破砕され、幅30センチ、長さ1メートル程度のスチロール塊として排出されます。この約50分の1に減容された発泡スチロールは、同社がすべて有償で買い取る仕組みです。つまり、ユーザーにとっては、それまで処理費用を支払って処分していたものが、逆に利益を生むことになります。
「スチロール樹脂の市況や処理量にもよりますが、約1～2年程度で導入費用の元は取れます」（犬飼さん）。当初は装置だけを販売し、再生原料は買い取らないのではないかと疑われることもありました。装置販売の契約書と同時に、原料引取りの誓約書を書かされたこともあったという。しかし、主な目的は処理機を販売することではなく、原料を買い取る点を力説し、提案した結果、まず築地市場に4台を納入しました。その結果を見て、全国の水産市場から引き合いが殺到することとなりました。
また、有償で買い上げるシステムである以上、再生原料の供給先の確保は同社の生命線となります。「いってみれば全国に再生原料工場を保有しているともいえ、責任は重大です。再生原料を高く売ることができれば、その分ユーザーから高く買い取ることができます。それが当社の使命だと考えています」と犬飼社長は述べています。製品販売と同時に販路開拓を進めました。犬飼社長が選択したのは海外です。
日本では現在も、食品衛生法や安全法、JIS規格などにより、食品容器やトレー、おもちゃ、ぼたん、建材などの発泡スチロール再生原料の用途開発が難しいです。そこで、規制が少なく、プラスチックが普及し始めていた台湾や香港、中国に販路を求めました。
犬飼社長が選択したのは海外だ。日本では現在もそうだが、食品衛生法や安全法、JIS規格などにより、食品容器やトレー、おもちゃ、ぼたん、建材など発泡スチロール再生原料の用途開発が難しい。そこで思い切って、規制も少なく、プラスチックが普及し始めていた台湾や香港、中国に販路を求めた。実際、再生原料のニーズは玩具や文具、トレーなど犬飼社長も驚くほど高かった。中でも生産性が急増していたのがビデオカセット。ビデオカセットのケース用再生原料は引く手あまたで、いくらでも欲しいという状況だった。再生原料は処理現場から次々と港へ運びこまれ、輸出された。今でもその状況は変わらず、1万トン、2万トンというオーダーをしてくる業者もいるという。現在、同社の処理機を導入しているのは、水産・�
��果卸「エコロポエース」。処理能力は1時間あたり約400kgで、最も売れる市場や大手百貨店、加工メーカー、廃棄物中間処理業者など、全国1200カ所に導入されている。回収量は月間2500トン、年間3万トンで、スチロール再生インゴットとしての国内シェアは実に80％に達するとのことで、これは半端ではない。再生原料の有償買取、海外販路の開拓により、装置ユーザーやパナ・ケミカル、海外業者のすべてにメリットのあるシステムを構築した。「経済合理性があればこそ、リサイクル・ビジネスは成功する」と犬飼さんは述べている。
また、発泡スチロール「クリーンヒートパッカー」は、処理能力が10kg/時～1000kg/時で、加熱された材料が溶融機本体を循環し、臭気は触媒活性炭で処理される。コンパクトな設計で、スーパーや百貨店など400カ所に導入されている。3000トン、廃プラスチック5000トンの回収・輸出を目標に、発泡スチロールに続き始めた廃プラスチックの再生事業でも、同様に粉砕機・減容機を開発し、現在、月間2000トンを処理している。装置の導入先は加工メーカーや中間処理業者などであり、再生原料の販売先は主に香港や中国など海外だ。ポリプロピレンやポリエチレン、塩ビなど汎用樹脂の再生原料はいくらあっても足りない状況だとされており、また、こうした単一素材だけでなく、混合樹脂でも枕木や建材、農業用資材の原料として需要が
ある。さらに2001年からは、PETボトルリサイクル事業も開始しており、全国100カ所にPETボトルフレークリサイクルシステムを納入し、それぞれの担当エリアを固定して回収を進める方針だ。再生用途としては、中国で衣料品など繊維としてリサイクルする構想があり、将来的には月間5000トンのPETボトルを回収、リサイクルする態勢を整えるべく動き始めている。現在、同社の売上構成は、70％が再生原料の輸出、20％が装置の新規販売や入替え（約5年で更新）、残りがかつての本業である化製品の販売となっている。96年2月期の売上は24億円であり、02年2月期には30億円に成長し、来期は40億円を見込んでおり右肩上がりだ。当面の目標は、発泡スチロール3000トン、廃プラスチック5000トンの回収・輸出を目指す。「再生原料の海外での�
�ーズはまだまだ高いため、回収に全力を注ぐ。また、装置については欧米などからの引き合いも多い。とはいえ、むやみに販売しても、再生原料の需給バランスや値崩れも懸念される。現在、欧米も含めたリサイクルの仕組みを検討しています」。
石油ショックを機にリサイクル事業開始。
同社は1976年、松下竜工の化成品販売代理店として、プラスチック原料全般の販売をスタートさせた。しかし、設立当初から大きな困難にぶつかった。折からの石油ショックにより、取り扱い商品のプラスチック原料が極度の品不足に陥ってしまったのだ。当然、取引先からは責められるがどうしようもなかった。
「そんな追い詰められた時期に思いついたのが発泡スチロールのリサイクルでした。築地の中央卸売市場の側を通りかかった際、焼却炉の煙突からもうもうと黒煙をあげて発泡スチロールを焼却しているのを目にした時でした」（犬飼さん）
市場では当時、ちょうど魚箱が木から発泡スチロールへと普及が進んでいた時期だった。それら使用済みの空魚箱は産地市場へ持ち帰ると輸送費がかかるため、市場で焼却、あるいは埋立処理されていた。
「これは、もったいない」とプラスチックの専門家である犬飼さんは考えた。リサイクルという言葉はなかったものの当時から、金型や成型、原料メーカーから出るスプールやランナーといった端材、規格外品などの廃プラスチックは回収され、再生されていた。最盛期には全国に再生業者が1000社以上あったという。分別を始めとした人件費が高くなり、採算が合わなくなるにつれ再度リサイクル事業が盛んに行われていた。犬飼さんが、発泡スチロールが焼却されているのを見て、熱を加えて溶かせば原料として使えるかもと考えたのは至極当然のことといえるかもしれない。
そこで早速取り掛かったのが発泡スチロール専用の処理機開発だ。設計の基本となったのは、すでにあった塩化ポリエチレンなどプラスチックの再生装置。電熱などにより発泡スチロールを溶かし、板状のスチロール樹脂原料として処理するもの。2年をかけて開発に取り組んだ。一号機はガスバーナーによる熱を利用していたが、引火の危険性なども考慮して、電気式へ改良、現在は摩擦熱を利用して機種なども取り揃えている。
有償で買い上げ、海外へ輸出。
その当時、発泡スチロール専用処理機というものはなかったので、もちろん機械の新規性だけでもそれなりに売れたでしょう。しかし、それ以上にリサイクルシステムを構築したことが同社の躍進の鍵となりました。
現在も同社のリサイクルシステムはこのように機能しています。処理機を市場やスーパー、廃棄物処理業者、自治体などに購入してもらいます。処理機に投入された発泡スチロールは、機種によって異なりますが、約3センチ四方に破砕され、幅30センチ、長さ1メートル程度のスチロール塊として排出されます。この約50分の1に減容された発泡スチロールは、同社がすべて有償で買い取る仕組みです。つまり、ユーザーにとっては、それまで処理費用を支払って処分していたものが、逆に利益を生むことになります。
「スチロール樹脂の市況や処理量にもよりますが、約1～2年程度で導入費用の元は取れます」（犬飼さん）。当初は装置だけを販売し、再生原料は買い取らないのではないかと疑われることもありました。装置販売の契約書と同時に、原料引取りの誓約書を書かされたこともあったという。しかし、主な目的は処理機を販売することではなく、原料を買い取る点を力説し、提案した結果、まず築地市場に4台を納入しました。その結果を見て、全国の水産市場から引き合いが殺到することとなりました。
また、有償で買い上げるシステムである以上、再生原料の供給先の確保は同社の生命線となります。「いってみれば全国に再生原料工場を保有しているともいえ、責任は重大です。再生原料を高く売ることができれば、その分ユーザーから高く買い取ることができます。それが当社の使命だと考えています」と犬飼社長は述べています。製品販売と同時に販路開拓を進めました。犬飼社長が選択したのは海外です。
日本では現在も、食品衛生法や安全法、JIS規格などにより、食品容器やトレー、おもちゃ、ぼたん、建材などの発泡スチロール再生原料の用途開発が難しいです。そこで、規制が少なく、プラスチックが普及し始めていた台湾や香港、中国に販路を求めました。
犬飼社長が選択したのは海外だ。日本では現在もそうだが、食品衛生法や安全法、JIS規格などにより、食品容器やトレー、おもちゃ、ぼたん、建材など発泡スチロール再生原料の用途開発が難しい。そこで思い切って、規制も少なく、プラスチックが普及し始めていた台湾や香港、中国に販路を求めた。実際、再生原料のニーズは玩具や文具、トレーなど犬飼社長も驚くほど高かった。中でも生産性が急増していたのがビデオカセット。ビデオカセットのケース用再生原料は引く手あまたで、いくらでも欲しいという状況だった。再生原料は処理現場から次々と港へ運びこまれ、輸出された。今でもその状況は変わらず、1万トン、2万トンというオーダーをしてくる業者もいるという。現在、同社の処理機を導入しているのは、水産・�
��果卸「エコロポエース」。処理能力は1時間あたり約400kgで、最も売れる市場や大手百貨店、加工メーカー、廃棄物中間処理業者など、全国1200カ所に導入されている。回収量は月間2500トン、年間3万トンで、スチロール再生インゴットとしての国内シェアは実に80％に達するとのことで、これは半端ではない。再生原料の有償買取、海外販路の開拓により、装置ユーザーやパナ・ケミカル、海外業者のすべてにメリットのあるシステムを構築した。「経済合理性があればこそ、リサイクル・ビジネスは成功する」と犬飼さんは述べている。
また、発泡スチロール「クリーンヒートパッカー」は、処理能力が10kg/時～1000kg/時で、加熱された材料が溶融機本体を循環し、臭気は触媒活性炭で処理される。コンパクトな設計で、スーパーや百貨店など400カ所に導入されている。3000トン、廃プラスチック5000トンの回収・輸出を目標に、発泡スチロールに続き始めた廃プラスチックの再生事業でも、同様に粉砕機・減容機を開発し、現在、月間2000トンを処理している。装置の導入先は加工メーカーや中間処理業者などであり、再生原料の販売先は主に香港や中国など海外だ。ポリプロピレンやポリエチレン、塩ビなど汎用樹脂の再生原料はいくらあっても足りない状況だとされており、また、こうした単一素材だけでなく、混合樹脂でも枕木や建材、農業用資材の原料として需要が
ある。さらに2001年からは、PETボトルリサイクル事業も開始しており、全国100カ所にPETボトルフレークリサイクルシステムを納入し、それぞれの担当エリアを固定して回収を進める方針だ。再生用途としては、中国で衣料品など繊維としてリサイクルする構想があり、将来的には月間5000トンのPETボトルを回収、リサイクルする態勢を整えるべく動き始めている。現在、同社の売上構成は、70％が再生原料の輸出、20％が装置の新規販売や入替え（約5年で更新）、残りがかつての本業である化製品の販売となっている。96年2月期の売上は24億円であり、02年2月期には30億円に成長し、来期は40億円を見込んでおり右肩上がりだ。当面の目標は、発泡スチロール3000トン、廃プラスチック5000トンの回収・輸出を目指す。「再生原料の海外での�
�ーズはまだまだ高いため、回収に全力を注ぐ。また、装置については欧米などからの引き合いも多い。とはいえ、むやみに販売しても、再生原料の需給バランスや値崩れも懸念される。現在、欧米も含めたリサイクルの仕組みを検討しています」。
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