Overview
Henan wastewater treatment plant serves Tongxu County in Kaifeng, Henan Province, China. It treats wastewater for approximately 61,500 people under China's national water pollution control standards.
The Henan wastewater treatment plant is located in Tongxu County, Kaifeng City, Henan Province, China. It serves a population of approximately 61,500 people, making it a medium-sized municipal facility in the region. The plant is part of China's extensive wastewater infrastructure, which is regulated under the national Water Pollution Prevention and Control Law. As a facility serving a population of this scale, the plant is expected to meet secondary or advanced treatment standards as per China's discharge limits for urban wastewater treatment plants (GB 18918-2002). Typical plants in this category employ biological treatment methods such as activated sludge or oxidation ditch to reduce organic pollutants and nutrients. The plant discharges treated effluent into local waterways that eventually drain into the Huai River basin, a major river system in eastern China. The Huai River flows eastward into the Yellow Sea, supporting agricultural irrigation and aquatic ecosystems. Proper treatment at this plant helps protect downstream water quality and reduce eutrophication risks in the river and coastal waters.
Environmental context
The plant's treated effluent enters local streams that are part of the Huai River basin. The Huai River flows through Henan and Anhui provinces before emptying into the Yellow Sea. This watershed supports extensive agriculture and is ecologically sensitive to nutrient pollution, which can cause algal blooms and degrade aquatic habitats. Effective wastewater treatment is crucial for maintaining water quality in this densely populated and agriculturally active region.
Frequently asked questions
The Henan wastewater treatment plant is located in Tongxu County, Kaifeng City, Henan Province, China.
The plant serves approximately 61,500 people in the Tongxu County area.
The plant discharges treated effluent into local waterways that are part of the Huai River basin, which flows eastward to the Yellow Sea.
The plant operates under China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets limits for COD, BOD, ammonia, and other pollutants. Facilities of this scale are typically required to meet Class 1-A or 1-B standards depending on the receiving water body's sensitivity.
Plants serving populations of this size in China commonly use biological treatment processes such as activated sludge, sequencing batch reactors, or oxidation ditches, often followed by disinfection. Many also incorporate nutrient removal to meet stricter discharge limits in sensitive watersheds.
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