Overview
The Henan wastewater treatment plant serves 87,600 people in Shangqiu, Henan Province, China. It operates under China's national wastewater standards for urban agglomerations.
The Henan wastewater treatment plant is located in the Shangqiu area of Henan Province, China, serving a population of approximately 87,600. As a medium-sized agglomeration, the plant is part of China's extensive municipal wastewater infrastructure, which is regulated under national discharge standards (GB 18918-2002) that mandate pollutant removal for urban wastewater. The plant's location in the eastern part of Henan places it within the Huai River basin, a major water system in eastern China. The Huai River ultimately drains into the Yellow Sea via the Yangtze River delta region, making the plant's operations significant for downstream water quality. Chinese regulations require secondary treatment or better for plants serving populations over 50,000, with stricter nutrient removal in sensitive areas. The plant's discharge likely enters local waterways that feed into the Huai River system, supporting agricultural and urban water uses downstream. The surrounding region is densely populated and agriculturally active, emphasizing the importance of effective wastewater treatment to prevent eutrophication and protect aquatic ecosystems.
Environmental context
The plant discharges into the Huai River basin, which flows eastward through Henan and Anhui provinces before reaching the Yellow Sea. The Huai River is a critical water source for irrigation and drinking water in the region, but it has historically suffered from pollution due to industrial and agricultural runoff. Effective treatment at this plant helps reduce nutrient loads that could otherwise contribute to algal blooms and hypoxia in downstream lakes and coastal areas. The watershed supports diverse aquatic life, including fish species important for local fisheries.
Frequently asked questions
The Henan wastewater treatment plant is located in the Shangqiu area of Henan Province, China, specifically near the Shangqiu No. 2 Senior High School in Suiyang District.
The plant serves approximately 87,600 people, classifying it as a medium-sized urban agglomeration under Chinese wastewater regulations.
The plant discharges treated wastewater into the Huai River basin, which flows eastward through Henan and Anhui provinces to the Yellow Sea.
The plant operates under China's national discharge standard GB 18918-2002, which sets limits for pollutants like COD, BOD, and nutrients. For plants serving over 50,000 people, secondary treatment is typically required.
For medium-sized agglomerations in China, secondary biological treatment (e. g. , activated sludge) is standard, often with nutrient removal in sensitive areas. The plant likely meets Class 1A or 1B discharge standards under GB 18918-2002.
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