Jiangsu Wastewater Treatment Plant, Sucheng District, Suqian, Jiangsu Province

The Jiangsu wastewater treatment plant is located in Sucheng District, Suqian, within Jiangsu Province, China. It serves a population of approximately 160,000, classifying it as a medium-to-large urban agglomeration under Chinese wastewater management frameworks. The facility is situated in the eastern part of the country, near the Yellow Sea coast, though it is more than 50 km inland. As a plant serving 160,000 people, it falls under China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), which mandates secondary treatment as a baseline and tertiary treatment in sensitive areas. The designed capacity is 1.00 (likely in 10,000 m³/d or similar units), indicating a substantial infrastructure investment. Typical plants of this scale employ activated sludge processes with nutrient removal. The plant discharges treated effluent into local waterways that ultimately drain into the Yellow Sea via the Huai River system. This region is part of the broader Yangtze River Delta watershed, which supports dense populations and intensive agriculture. Proper treatment is critical to prevent eutrophication and protect downstream aquatic ecosystems, including fisheries and wetlands along the Jiangsu coast.

The plant's treated effluent flows into the local river network within the Huai River basin, which eventually reaches the Yellow Sea. This coastal region supports diverse marine life and is an important area for aquaculture and fisheries. Nutrient loading from wastewater can contribute to algal blooms and hypoxia in coastal waters, making effective treatment essential for maintaining water quality and ecosystem health.