Tokyo and Osaka Prefecture - History and Current Status of Waste Disposal in Japan - 2022
In the early 2000s, the Tokyo Metropolitan Government and Osaka Prefecture reported a serious shortage of waste treatment plants, with an average remaining life of 1.6 years. In response to this problem, the New Waste Disposal Law was enacted in 2001, and waste-to-energy plants were introduced in Kawasaki and Kitakyushu cities. Kawasaki Heavy Industries and Sekisui Chemical jointly developed plastic reuse technology, and Seven-Eleven Japan also promoted the use of recycled materials.
By 2022, the remaining life of waste treatment plants in Japan as a whole has improved to 22.4 years, but challenges still remain in urban areas. Osaka generates 2.89 million tons of waste annually, with a recycling rate of 13.0%, below the national average of 19.6%. 8.22 million tons of plastic waste was generated nationwide in 2020, 62% of which was processed through thermal recycling. In Osaka City, 41,000 tons of food loss is generated annually, and the "Food Waste 3-Kiri Campaign" and other programs are being promoted. Cooperation among the government, companies, and local governments is still needed.
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