Henan Wastewater Treatment Plant, Minquan County, Henan, China

The Henan wastewater treatment plant is located in Minquan County, Henan Province, China, serving a population of approximately 100,000. The facility is situated in the Lvzhou subdistrict of the county, part of the broader Shangqiu city administrative area. As a municipal plant, it plays a key role in managing domestic wastewater from this medium-sized agglomeration. China's wastewater treatment regulations, including the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), set effluent quality requirements based on the receiving water body's sensitivity. The plant's designed capacity is not disclosed, but its population served suggests a capacity in the range of tens of thousands of cubic meters per day. The treated effluent from the plant is discharged into local water bodies that ultimately drain into the Huai River basin, a major river system in eastern China. The Huai River flows eastward into Hongze Lake and then to the Yellow Sea. The plant's operation helps protect downstream aquatic ecosystems and supports water quality in the region, which is important for agriculture and drinking water supplies.

The plant discharges into the Huai River basin, which flows through Henan and Anhui provinces before reaching Hongze Lake and the Yellow Sea. The Huai River watershed supports diverse aquatic life and is a critical water source for agriculture and urban areas. The plant's treatment helps reduce nutrient and pollutant loads, protecting downstream ecosystems from eutrophication and maintaining water quality for human use.