Jiangsu Wastewater Treatment Plant, Gulou District, Xuzhou | China

The Jiangsu wastewater treatment plant is located in Gulou District, Xuzhou, within Jiangsu Province, China. It serves a population of 320,000, classifying it as a large urban agglomeration under Chinese wastewater management standards. The plant is situated in an inland area, more than 50 km from the coast, and its operations are integral to the region's water infrastructure. As a large-scale facility in China, the plant is expected to meet the discharge standards set by the national Water Pollution Prevention and Control Law. For agglomerations of this size, secondary treatment with nutrient removal is typically required, especially in sensitive watersheds. Regulatory compliance ensures appropriate treatment levels. The plant discharges treated wastewater into local waterways that eventually drain into the Huai River basin, a major river system in eastern China. The Huai River flows into the Yellow Sea, supporting diverse aquatic life and providing water for agriculture and industry. Effective treatment at this plant helps protect downstream water quality and ecosystem health.

The plant's treated effluent enters local tributaries of the Huai River, which flows eastward through Jiangsu and Anhui provinces before reaching the Yellow Sea. The Huai River basin is ecologically significant, supporting fisheries and wetlands that provide habitat for migratory birds and aquatic species. Protecting this watershed from nutrient pollution and contaminants is critical for maintaining regional biodiversity and water quality.