Overview
Hunan wastewater treatment plant serves 120,000 people in Wushan Street, Changsha, Hunan Province, China. It operates under national discharge standards for the Xiang River basin.
The Hunan wastewater treatment plant is located in Wushan Street, Xiangjiang New District, Wangcheng District, Changsha, Hunan Province, China. It serves a population of approximately 120,000, classifying it as a medium-to-large agglomeration under Chinese wastewater management frameworks. As a municipal facility in China, the plant is expected to meet the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets limits for COD, BOD, ammonia nitrogen, and total phosphorus. For plants serving over 100,000 people, advanced treatment (Class 1A) is typically required to protect sensitive water bodies. The plant discharges into the local water system that drains into the Xiang River, a major tributary of the Yangtze River. The Xiang River supports diverse aquatic life and provides drinking water for downstream communities. Proper treatment is critical to prevent eutrophication and maintain water quality in this densely populated region.
Environmental context
The plant's treated effluent flows into the Xiang River, which runs through Hunan Province and joins the Yangtze River at Dongting Lake. The Xiang River basin is ecologically sensitive, supporting fisheries and agricultural irrigation. Discharge from the plant must comply with strict nutrient limits to avoid algal blooms in downstream lakes and reservoirs.
Frequently asked questions
The plant is located in Wushan Street, Xiangjiang New District, Wangcheng District, Changsha, Hunan Province, China.
The plant serves approximately 120,000 people, classifying it as a medium-to-large municipal facility.
The plant discharges into the Xiang River, a major tributary of the Yangtze River, helping to protect water quality in the Xiang River basin and downstream Dongting Lake.
The plant must comply with China's GB 18918-2002 discharge standard. For plants serving over 100,000 people, Class 1A effluent limits are typically required to protect sensitive water bodies.
Plants of this scale in China usually employ secondary biological treatment (e. g. , activated sludge) followed by advanced treatment (e. g. , filtration, nutrient removal) to meet Class 1A standards for nitrogen and phosphorus.
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