Overview
Henan wastewater treatment plant serves Yongcheng City in Henan Province, China, with a population equivalent of 151,000. The facility operates under China's national wastewater discharge standards.
The Henan wastewater treatment plant is located in Houling Subdistrict, Yongcheng City, Shangqiu, Henan Province, China. It serves a population equivalent of 151,000, classifying it as a medium-to-large agglomeration under Chinese wastewater management frameworks. China's wastewater treatment regulations, including the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), require secondary treatment as a baseline for plants of this scale. Tertiary treatment may be mandated in sensitive watersheds or regions with strict water quality targets. The 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. The plant plays a key role in protecting downstream aquatic ecosystems and supporting water quality in the region.
Environmental context
The plant's discharge enters the Huai River basin, which flows through Henan, Anhui, and Jiangsu provinces before reaching Hongze Lake and the Yellow Sea. The Huai River supports diverse aquatic life and is an important water source for agriculture and industry. Protecting water quality in this basin is critical for regional ecological health and downstream communities.
Frequently asked questions
The plant is located in Houling Subdistrict, Yongcheng City, Shangqiu, Henan Province, China.
The plant serves a population equivalent of 151,000 people.
The treated effluent is discharged into local waterways that flow into the Huai River basin, eventually reaching Hongze Lake and the Yellow Sea.
The plant operates under China's national discharge standard GB 18918-2002, which sets limits for pollutants like COD, BOD, and ammonia. For plants serving over 100,000 people, secondary treatment is typically required, with possible tertiary treatment in sensitive areas.
In China, wastewater treatment plants serving populations over 100,000 are generally required to achieve at least secondary treatment, with nutrient removal in eutrophic regions. Many plants also implement advanced treatment to meet stricter local water quality standards.
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