Jiangsu Wastewater Treatment Plant, Xiangshui County, Yancheng, Jiangsu

The Jiangsu wastewater treatment plant is located in Xiangshui County, Yancheng City, Jiangsu Province, China. It serves a population of 100,000, placing it in the medium agglomeration category under Chinese wastewater regulations. The plant is situated in a rapidly developing coastal region of eastern China, where industrial and urban growth drives demand for reliable wastewater infrastructure. Chinese wastewater treatment plants of this scale typically employ secondary biological treatment processes such as activated sludge or sequencing batch reactors, in line with national discharge standards (GB 18918-2002). The plant's designed capacity of 1. Under China's Water Pollution Prevention and Control Action Plan, plants serving populations over 100,000 are expected to meet stricter effluent limits, particularly in sensitive watersheds. The plant discharges into the local water system, which ultimately drains into the Yellow Sea via the Guan River or nearby coastal waterways. The region is part of the Huai River basin, a major agricultural and industrial area. Downstream environments include tidal flats and coastal wetlands that support migratory birds and aquatic biodiversity. Effective treatment at this plant helps protect these ecosystems from nutrient pollution and industrial contaminants.

The plant's receiving water body is part of the Huai River basin, which flows into the Yellow Sea near the coast of Jiangsu. The downstream area includes tidal flats and coastal wetlands that serve as important habitats for migratory waterfowl and support diverse aquatic life. Nutrient loading from untreated wastewater could contribute to eutrophication in coastal waters, making effective treatment critical for maintaining ecological balance in this sensitive region.