Overview
Hunan wastewater treatment plant serves Yanqiao Town, Huaihua, Hunan, China, with a population of 59,200. It operates under China's national wastewater standards for medium-sized agglomerations.
The Hunan wastewater treatment plant is located in Yanqiao Town, part of Zhijiang Dong Autonomous County in Huaihua City, Hunan Province, China. Serving a population of approximately 59,200, it is classified as a medium-sized agglomeration under Chinese wastewater management frameworks. China's wastewater treatment regulations, including the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), set effluent quality requirements based on receiving water sensitivity. For plants of this scale, secondary treatment with nutrient removal is typically mandated to protect downstream water bodies. The plant's treated effluent likely discharges into a tributary of the Yuan River, which flows into Dongting Lake and eventually the Yangtze River. This watershed supports diverse aquatic life and provides water for agriculture and communities downstream.
Environmental context
The plant is situated inland in Hunan Province, within the Yangtze River basin. Treated wastewater likely enters a local tributary of the Yuan River, which drains into Dongting Lake, a large freshwater lake that regulates floodwaters and supports fisheries. The downstream environment includes ecologically sensitive wetlands and migratory bird habitats, making effective nutrient removal critical to prevent eutrophication.
Frequently asked questions
The plant is located in Yanqiao Town, Zhijiang Dong Autonomous County, Huaihua City, Hunan Province, China, along G320.
The plant serves approximately 59,200 people, classifying it as a medium-sized agglomeration under Chinese wastewater standards.
Treated effluent is likely discharged into a local tributary of the Yuan River, which flows into Dongting Lake and eventually the Yangtze River.
The plant operates under China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), which sets effluent limits based on the sensitivity of the receiving water body.
For medium-sized agglomerations in China, secondary biological treatment with nutrient removal is standard to meet GB 18918-2002 requirements, especially when discharging into ecologically sensitive waters.
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