Henan Wastewater Treatment Plant, Zhumadian | Huai River Basin Context

The Henan wastewater treatment plant is located in Sanlihe Street, Queshan County, Zhumadian City, Henan Province, China. It serves a population of approximately 73,000, classifying it as a medium-sized agglomeration under Chinese wastewater management standards. The plant is part of the municipal infrastructure for the region, which falls under China's national water pollution control regulations. China's wastewater treatment standards require secondary treatment for urban plants serving populations over 50,000, with tertiary treatment increasingly mandated in sensitive watersheds. The plant operates under China's Water Pollution Prevention and Control Law, which sets discharge limits for nutrients and pollutants. The facility is expected to meet Class 1A or 1B standards under the national Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002). The plant discharges treated effluent into local rivers that drain into the Huai River basin, a major water system in eastern China. The Huai River flows through Henan and Anhui provinces before emptying into the Yellow Sea. The basin supports extensive agriculture and is ecologically significant, with efforts to reduce nutrient pollution and improve water quality for downstream communities and ecosystems.

The plant's treated effluent enters local waterways within the Huai River basin, which flows through Henan and Anhui provinces to the Yellow Sea. The Huai River is a major water source for irrigation and drinking water, and its ecological health is critical for regional biodiversity. Downstream areas include wetlands and lakes that support migratory birds and aquatic life, making nutrient and pollutant control important for maintaining water quality.