Overview
Hunan wastewater treatment plant serves Guzhang County in Xiangxi, Hunan, China, with a population of 51,000. The plant operates under China's national wastewater standards.
The Hunan wastewater treatment plant is located in Guzhang County, within the Xiangxi Tujia and Miao Autonomous Prefecture of Hunan Province, China. It serves an estimated population of 51,000, placing it in the medium agglomeration category for Chinese municipal wastewater infrastructure. As a Chinese municipal plant, it is subject to the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets effluent limits based on the receiving water's environmental sensitivity. For plants serving communities of this size, secondary treatment with nutrient removal is typically required, especially if discharging into sensitive water bodies. The plant's treated effluent likely discharges into a local river within the Yangtze River basin, as Hunan is part of the Yangtze watershed. The downstream environment includes the Dongting Lake system and ultimately the East China Sea, supporting diverse aquatic life and providing water for agriculture and fisheries.
Environmental context
The plant discharges into a tributary of the Yuan River, which flows into Dongting Lake and then the Yangtze River, eventually reaching the East China Sea. The downstream watershed supports important freshwater fisheries and irrigated agriculture. Proper treatment is critical to prevent eutrophication in Dongting Lake, a large floodplain lake that provides habitat for migratory birds and aquatic species.
Frequently asked questions
The plant is located in Guzhang County, Xiangxi Tujia and Miao Autonomous Prefecture, Hunan Province, China.
The plant serves approximately 51,000 people, classifying it as a medium-sized municipal wastewater treatment facility.
Treated effluent is discharged into a local river within the Yangtze River basin, likely a tributary of the Yuan River, which flows into Dongting Lake and eventually the East China Sea.
The plant must comply with China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets effluent limits based on the receiving water's environmental sensitivity.
For medium-sized agglomerations in China, secondary treatment with nutrient removal is typically required, especially if the receiving water body is sensitive to eutrophication.
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