Overview
Hunan wastewater treatment plant serves Xinhuang County, Hunan, China, with a population equivalent of 64,200. The facility operates under China's national wastewater discharge standards.
The Hunan wastewater treatment plant is located in Xinhuang County (新晃县), Huaihua City, Hunan Province, China. It serves a population of approximately 64,200, placing it in the medium agglomeration category. The plant is situated in the inland region of western Hunan, near the border with Guizhou Province. As a municipal facility in China, the plant is subject to the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets effluent limits for COD, BOD, ammonia nitrogen, and total phosphorus. For agglomerations of this size, secondary treatment with nutrient removal is typically required to meet Class 1-A or 1-B standards, depending on the receiving water's sensitivity. The treated effluent is discharged into local waterways that ultimately drain into the Yuan River system, a tributary of the Yangtze River. The Yuan River flows eastward through Hunan into Lake Dongting, a large freshwater lake that supports diverse aquatic life and provides critical flood storage. The plant's operation helps protect downstream water quality in this ecologically significant basin.
Environmental context
The plant discharges into the Yuan River basin, which flows into Lake Dongting, one of China's largest freshwater lakes and a key wetland for migratory birds. The Yuan River system supports fisheries and irrigation for surrounding agricultural areas. Hunan's subtropical monsoon climate brings heavy rainfall, making proper wastewater treatment essential to prevent nutrient loading and algal blooms in downstream waters.
Frequently asked questions
The plant is located in Xinhuang County (新晃县), Huaihua City, Hunan Province, China, near the border with Guizhou Province.
The plant serves a population equivalent of 64,200, classifying it as a medium-sized municipal wastewater treatment facility.
The plant protects the Yuan River system, which flows into Lake Dongting and ultimately the Yangtze River, by treating wastewater before discharge.
The plant operates under China's GB 18918-2002 standard, which sets discharge limits for pollutants. For facilities serving over 50,000 people, secondary treatment with nutrient removal is typically required to meet Class 1-A or 1-B standards.
Plants of this scale in China commonly employ activated sludge processes with biological nutrient removal to meet national discharge standards, ensuring protection of receiving waters.
Nearby plants