Shanghai Wastewater Treatment Plant, 松江区, China

The Shanghai wastewater treatment plant is located in 松江区 (Songjiang District), Shanghai, China. It serves a population of approximately 208,700, making it a medium-to-large agglomeration under Chinese wastewater management standards. The plant's designed capacity is 1. As a facility in China, the plant operates under the national Water Pollution Prevention and Control Law and the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002). For a plant serving over 200,000 people, Chinese regulations typically require secondary treatment with nutrient removal, especially in sensitive areas. The plant's treatment level is not explicitly reported, but it is expected to meet Class 1A or 1B standards for effluent quality. The plant's treated effluent is discharged into local waterways within the Yangtze River Delta watershed. The area drains into the Huangpu River and ultimately the East China Sea. This region is ecologically significant, supporting diverse aquatic life and providing water resources for agriculture and industry. The plant plays a key role in protecting downstream water quality in a densely populated and economically vital region.

The plant discharges into the Yangtze River Delta watershed, which flows through the Huangpu River into the East China Sea. This coastal and estuarine environment supports important fisheries and migratory bird habitats. The region faces challenges from industrial and agricultural runoff, making effective wastewater treatment critical for maintaining water quality and ecosystem health.