Overview
Hunan wastewater treatment plant serves Yuanjiang City in Hunan Province, China, with a population of 174,500. The facility operates under China's national wastewater standards.
The Hunan wastewater treatment plant is located in Yuanjiang City, within the Nan Dongting Reed Farm area of Hunan Province, China. It serves a population of approximately 174,500, classifying it as a medium-to-large agglomeration under Chinese wastewater management frameworks. As a plant in China, it operates under the national Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets effluent limits for conventional pollutants and nutrients. For a facility of this scale, 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 plant's treated effluent likely discharges into the Dongting Lake watershed, one of China's largest freshwater lakes and a critical ecological zone. Dongting Lake connects to the Yangtze River, supporting diverse aquatic life and providing flood regulation. The plant plays a key role in protecting this sensitive downstream environment from nutrient pollution and pathogens.
Environmental context
The plant is situated in the Dongting Lake basin, a major tributary system of the Yangtze River. Dongting Lake is a vital freshwater ecosystem that supports migratory birds, fish, and wetland vegetation. Treated effluent from the plant ultimately flows into the lake and then to the Yangtze, affecting water quality in this ecologically sensitive region. Nutrient loading from urban wastewater is a key concern for preventing eutrophication in the lake.
Frequently asked questions
The plant is located in the Nan Dongting Reed Farm area of Yuanjiang City, Hunan Province, China.
The plant serves approximately 174,500 people, making it a medium-to-large municipal facility.
The plant discharges into the Dongting Lake watershed, which connects to the Yangtze River.
The plant operates under China's national standard GB 18918-2002, which sets discharge limits for pollutants. For a plant of this size, secondary treatment with nutrient removal is typically required to meet Class 1-A or 1-B standards.
Dongting Lake is one of China's largest freshwater lakes and a critical habitat for migratory birds, fish, and wetland species. It also provides flood regulation for the Yangtze River basin.
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