Jiangsu Wastewater Treatment Plant, Jiangyin, Jiangsu, China

The Jiangsu wastewater treatment plant is located in Jiangyin, a city in the Jiangsu province of eastern China, within the densely populated Yangtze River Delta region. The plant serves a population of 83,000, classifying it as a medium-sized agglomeration under Chinese wastewater management standards. China's wastewater treatment regulations, governed by the Ministry of Ecology and Environment, require secondary treatment as a baseline for urban plants. The designed capacity of the plant is 1.00 (likely in 10,000 m³/day or similar units), indicating a facility sized for its service population. The plant's treated effluent is discharged into local waterways that ultimately flow into the Yangtze River, one of the world's major rivers, which empties into the East China Sea. The Yangtze River basin supports diverse aquatic ecosystems and is a critical water resource for millions of people. The plant's proximity to the coast (within 50 km) means its discharge contributes to the nutrient load entering coastal waters, necessitating effective treatment to protect downstream environments.

The plant discharges into the Yangtze River basin, which drains into the East China Sea. The Yangtze is a major ecological corridor supporting numerous fish species and migratory birds. Downstream coastal areas include important fisheries and estuarine habitats that are sensitive to nutrient pollution and require careful management of wastewater discharges.