Overview
Henan wastewater treatment plant serves Xinzheng City in Henan Province, China, with a population equivalent of 150,000. The facility operates under China's national wastewater discharge standards.
The Henan wastewater treatment plant is located in the central urban area of Xinzheng City, within the Zhengzhou metropolitan region of Henan Province, China. Designed to serve a population of 150,000, it is a medium-to-large municipal facility supporting the city's urban wastewater management needs. Under China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), plants serving populations over 100,000 are typically required to meet Class 1-A or 1-B standards, which include biological treatment and nutrient removal. The facility's treatment processes are expected to align with these national regulations to protect receiving water bodies. The plant discharges treated effluent into local waterways that ultimately drain into the Yellow River basin, a major river system in northern China. The Yellow River and its tributaries support agricultural irrigation, industrial use, and aquatic ecosystems, making effective wastewater treatment critical for regional water quality and ecological health.
Environmental context
The treated effluent from the Henan plant flows into local rivers within the Yellow River basin, which eventually reaches the Yellow River and then the Bohai Sea. The Yellow River is a vital water source for northern China, supporting agriculture, industry, and biodiversity. Effective nutrient removal is essential to prevent eutrophication in downstream reservoirs and coastal waters.
Frequently asked questions
The plant is located in the central urban area of Xinzheng City, within the Zhengzhou metropolitan region of Henan Province, China.
The plant serves a population equivalent of 150,000 people, classifying it as a medium-to-large municipal wastewater treatment facility.
The plant discharges treated effluent into local waterways that are part of the Yellow River basin, helping to protect the Yellow River and its tributaries from pollution.
The plant operates under China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), which sets effluent limits for organic matter, nutrients, and pathogens based on plant size and receiving water sensitivity.
For plants of this scale, Chinese regulations typically require secondary biological treatment with nutrient removal, often achieving Class 1-A or 1-B standards to protect water quality in the receiving environment.
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