Overview
Henan wastewater treatment plant serves Xihua County in Zhoukou, Henan Province, China. It handles a population of 104,000, operating under national environmental regulations.
The Henan wastewater treatment plant is located in Xihua County, part of Zhoukou City in Henan Province, China. It serves a population of approximately 104,000 people, classifying it as a medium-to-large agglomeration under Chinese wastewater management standards. As a plant of this scale in China, it is expected to comply with the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which mandates secondary treatment with nutrient removal for sensitive water bodies. Typical facilities serving similar populations employ activated sludge processes with biological nutrient removal. The plant discharges into local waterways that ultimately flow into the Huai River basin, a major river system in eastern China. The Huai River drains into the Yellow Sea, supporting diverse aquatic ecosystems and providing water for agriculture and industry. Proper treatment is critical to prevent eutrophication and protect downstream water quality.
Environmental context
The plant's treated effluent enters the local river network, which is part of the Huai River basin. The Huai River flows eastward through Henan and Anhui provinces before emptying into the Yellow Sea. This watershed supports extensive agricultural irrigation and freshwater fisheries, making nutrient removal essential to avoid algal blooms and oxygen depletion in downstream lakes and coastal zones.
Frequently asked questions
The plant is located in Xihua County, Zhoukou City, Henan Province, China.
The plant serves approximately 104,000 people, classifying it as a medium-to-large agglomeration.
The plant discharges treated effluent into local waterways that are part of the Huai River basin, which flows to the Yellow Sea.
The plant operates under China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which requires secondary treatment and nutrient removal for sensitive areas.
Plants of this scale in China typically use activated sludge processes with biological nutrient removal to meet GB 18918-2002 standards, especially when discharging into sensitive water bodies.
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