Overview
Henan wastewater treatment plant serves Yima 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 Yima City, Sanmenxia Prefecture, Henan Province, China. It serves a population of approximately 150,000, classifying it as a medium-to-large urban agglomeration under Chinese wastewater management frameworks. The plant is situated near the G310 highway in the Mianchi County area. 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 effluent standards, which include biological treatment and nutrient removal. The regulatory framework ensures appropriate treatment for this scale. The plant discharges into local water bodies that ultimately drain into the Yellow River basin, a major river system in northern China. The Yellow River supports extensive agricultural irrigation and provides drinking water for millions. Downstream ecosystems include wetlands and riverine habitats that are ecologically sensitive to nutrient loading and pollutants.
Environmental context
The plant's treated effluent flows into tributaries of the Yellow River, which is the second-longest river in China and a critical water source for agriculture, industry, and domestic use in the region. The Yellow River basin supports diverse aquatic life and migratory bird populations. Downstream, the river discharges into the Bohai Sea, a semi-enclosed sea with significant ecological and economic importance. Nutrient and pollutant management is crucial to prevent eutrophication and protect coastal fisheries.
Frequently asked questions
The plant is located in Yima City, Sanmenxia Prefecture, Henan Province, China, near the G310 highway in Mianchi County.
The plant serves a population equivalent of 150,000, classifying it as a medium-to-large urban agglomeration.
The plant discharges into local tributaries that flow into the Yellow River, which ultimately reaches the Bohai Sea.
The plant operates under China's GB 18918-2002 standard, which sets effluent limits for municipal wastewater treatment plants. For plants serving over 100,000 people, Class 1-A or 1-B standards typically apply, requiring biological treatment and nutrient removal.
The plant's discharge enters the Yellow River basin, a critical water source for northern China. Proper treatment helps protect downstream aquatic ecosystems and the Bohai Sea from eutrophication.
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