Overview
Henan wastewater treatment plant serves Xincai County in Henan Province, China, with a population of 87,000. The facility operates under China's national wastewater standards.
The Henan wastewater treatment plant is located in Xincai County (Xincai County), part of Zhumadian City in Henan Province, China. It serves an estimated population of 87,000 people, placing it in the medium-scale category for municipal wastewater treatment in the region. As a Chinese wastewater facility, the plant is subject to the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets effluent limits for conventional pollutants and nutrients. For plants serving populations of this size, secondary treatment with nutrient removal is typically required to meet Class 1-A or 1-B standards, depending on the receiving water's sensitivity. The plant's treated effluent is discharged into local waterways 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, supporting extensive agricultural irrigation and aquatic ecosystems. Proper treatment is critical to prevent eutrophication and protect downstream water quality.
Environmental context
The plant discharges into the Huai River basin, which flows through Henan and Anhui provinces before reaching Hongze Lake and the Yellow Sea. This watershed supports diverse aquatic life and is a key water source for agriculture and fisheries. Nutrient loading from untreated or inadequately treated wastewater can contribute to algal blooms and hypoxia in downstream lakes and coastal areas.
Frequently asked questions
The plant is located in Xincai County (Xincai County), Zhumadian City, Henan Province, China, at Y005 in Gulu Subdistrict.
The plant serves approximately 87,000 people, classifying it as a medium-scale municipal wastewater treatment facility.
Treated effluent is discharged into local waterways that flow into the Huai River basin, eventually reaching Hongze Lake and the Yellow Sea.
The plant must comply with China's GB 18918-2002 discharge standard, which sets limits for pollutants like COD, BOD, ammonia, and phosphorus. For plants serving 87,000 people, secondary treatment with nutrient removal is typical.
Chinese regulations generally require secondary biological treatment for municipal plants serving over 10,000 people. For sensitive receiving waters, advanced treatment with nitrogen and phosphorus removal may be mandated to meet Class 1-A standards.
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