Henan Wastewater Treatment Plant, Zhumadian | Huai River Basin Context

The Henan wastewater treatment plant is located in Sanlidian Community, Guta Street, Runan County, within Zhumadian City, Henan Province, China. It serves a population equivalent of 88,000, placing it in the medium agglomeration category for Chinese municipal wastewater infrastructure. China's wastewater treatment regulations require secondary treatment for urban plants of this scale, with effluent standards set by the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002). Typical facilities in Henan Province employ activated sludge or similar biological processes to meet Class 1A or 1B discharge limits. The plant discharges treated effluent into local waterways that ultimately drain into the Huai River basin, a major river system in eastern China. The Huai River flows through Henan, Anhui, and Jiangsu provinces before emptying into the Yellow Sea. The plant's operations help protect downstream water quality and aquatic ecosystems in this densely populated agricultural region.

The plant's treated effluent enters local streams that feed into the Huai River system, which flows eastward through Henan and Anhui provinces to the Yellow Sea. The Huai River basin supports extensive agriculture and fisheries, and its water quality is critical for regional drinking water supplies. The plant's discharge contributes to nutrient and pollutant loads in the watershed, making effective treatment essential for preventing eutrophication and protecting downstream aquatic life.