77-en-Shanghai_Manila_Bay_Veolia_BASF_Asia_Wastewater_Management_Status-2020s-Environmental_Analysis

77-en-Shanghai_Manila_Bay_Veolia_BASF_Asia_Wastewater_Management_Status-2020s-Environmental_Analysis

### Status of Wastewater Management in Asia - 2020s

#### Overall Situation and Challenges
In Asia, approximately 31 billion cubic meters of wastewater remain untreated each year, with 90% being directly discharged into rivers and oceans. This has led to the spread of red tides, heavy metal contamination, and threats to drinking water safety and fisheries. Rapid population growth in urban areas has placed significant pressure on sewage infrastructure, contributing to severe water shortages.

#### Regional Situations
- **Shanghai, China**
Shanghai operates a facility capable of processing 1.7 million cubic meters of wastewater daily. This facility removes lead, cadmium, and arsenic from industrial wastewater using advanced technologies, greatly improving water quality for the city's population of 23.5 million.

- **Manila Bay, Philippines**
In Manila Bay, approximately 50 million cubic meters of untreated wastewater flow into the ocean annually, causing severe damage to marine ecosystems. Over the past decade, fish catches have declined by 20%, and the tourism industry has also suffered. Veolia and BASF are jointly running a project to reuse 20 billion cubic meters of water annually to address these issues.

- **Ganges River, India**
The Ganges receives 100 million liters of untreated wastewater daily, impacting public health and agriculture along its banks. JICA is supporting the development of sewage treatment facilities, aiming to raise the urban wastewater treatment rate to 25% by 2025.

- **Jakarta, Indonesia**
In Indonesia, JICA and ADB are working on a project to increase the wastewater treatment rate from 14% to 20% by 2025. A newly built facility in Jakarta processes 10 million cubic meters of wastewater daily, improving water quality for the rapidly growing city.

#### Climate Change and New Technologies
With climate change exacerbating water shortages, wastewater reuse has become critical. In Shanghai, Veolia's floating treatment facilities achieve the same capacity as traditional plants using 50% less land. BASF has introduced advanced chemical treatment technologies in the Philippines, further promoting water reuse.

#### Conclusion
Sustainable wastewater management across Asia is expected to play a crucial role in improving water quality and stabilizing economies by 2030. These efforts aim to mitigate the effects of climate change while promoting ecosystem preservation and economic development.