Overview
Henan wastewater treatment plant serves Mianchi County, Sanmenxia, Henan, China, with a population of 62,800. The plant discharges into local waterways within the Yellow River basin.
The Henan wastewater treatment plant is located in Mianchi County, Sanmenxia City, Henan Province, China. It serves a population of approximately 62,800, placing it in the medium agglomeration category under Chinese wastewater regulations. China's wastewater treatment standards, governed by the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), require secondary treatment for plants of this scale. Typical facilities in this region employ biological treatment methods such as activated sludge or A2O processes to meet Class 1A or 1B discharge limits. The plant's treated effluent ultimately drains into the Yellow River basin, a major waterway 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, particularly during low-flow periods when pollutant concentrations can increase.
Environmental context
The plant discharges into local tributaries of the Yellow River, which flows eastward through Henan and into the Bohai Sea. The Yellow River basin is a critical water resource for northern China, supporting agriculture, industry, and domestic use. Downstream areas include ecologically important wetlands and riverine habitats that require protection from nutrient and pollutant loads. Seasonal variations in river flow can affect dilution capacity, making consistent treatment important for maintaining water quality.
Frequently asked questions
The plant is located in Mianchi County, Sanmenxia City, Henan Province, China.
The plant serves a population of approximately 62,800 people.
The plant discharges into local waterways that are part of the Yellow River basin, ultimately flowing into the Bohai Sea.
The plant must comply with China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets limits for pollutants like COD, BOD, and nutrients. For plants of this scale, secondary treatment with nutrient removal is typically required.
The Yellow River basin is a vital water source for agriculture, industry, and domestic use in northern China. The plant's discharge affects downstream water quality, supporting ecologically sensitive wetlands and riverine habitats.
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