Overview
Shanghai wastewater treatment plant serves 470,000 people in Songjiang District. It operates under China's national wastewater standards, discharging treated effluent into local waterways that drain to the East China Sea.
The Shanghai wastewater treatment plant is located in Yongfeng Subdistrict, Songjiang District, Shanghai, China. It serves a population of approximately 470,000, classifying it as a large agglomeration under Chinese wastewater management frameworks. The plant's designed capacity is 1.00 (likely in cubic meters per day or similar unit), indicating a substantial infrastructure to handle municipal wastewater from this densely populated area. As a major treatment facility in China, the plant is subject to the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets limits for key pollutants such as COD, BOD, ammonia nitrogen, and phosphorus. For large agglomerations like this, advanced treatment (tertiary) is often required to meet stringent effluent standards, especially in environmentally sensitive areas. Typical facilities of this scale employ biological treatment processes such as activated sludge or A2O. The plant discharges treated effluent into local rivers or canals within the Huangpu River basin, which flows through Shanghai and eventually into the Yangtze River estuary and the East China Sea. This discharge point is critical for maintaining water quality in the region's dense network of waterways, which support aquatic life and are used for irrigation, industrial processes, and as a source of drinking water downstream. The plant plays a key role in protecting the ecological health of the Yangtze River Delta, a highly urbanized and economically vital area.
Environmental context
The plant's treated effluent enters the Huangpu River system, which flows through Shanghai and joins the Yangtze River at its estuary before reaching the East China Sea. This watershed supports diverse aquatic habitats and is a critical migratory corridor for fish species. The Yangtze estuary is a highly productive ecosystem, but faces pressures from urbanization and industrial activity. The plant's discharge must meet strict standards to minimize nutrient loading and protect downstream water quality.
Frequently asked questions
The plant is located in Yongfeng Subdistrict, Songjiang District, Shanghai, China, with coordinates approximately 31.016 N, 121.178 E.
The plant serves approximately 470,000 people, classifying it as a large agglomeration under Chinese wastewater management standards.
The plant discharges treated effluent into local waterways within the Huangpu River basin, which flows into the Yangtze River estuary and ultimately the East China Sea.
The plant operates under China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets effluent limits for key pollutants. Large agglomerations like this typically require advanced treatment to meet these standards.
For large agglomerations in China, typical treatment includes biological processes such as activated sludge or anaerobic-anoxic-oxic (A2O) systems, often with tertiary treatment for nutrient removal to comply with GB 18918-2002 standards.
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