Overview
Hunan wastewater treatment plant serves 115,000 people in Cili County, Zhangjiajie, Hunan Province, China. It operates under China's national wastewater discharge standards.
The Hunan wastewater treatment plant is located in Lingyang Subdistrict, Cili County, within the city of Zhangjiajie in Hunan Province, China. It serves a population of 115,000, placing it in the medium-to-large agglomeration category for Chinese municipal wastewater infrastructure. China's wastewater treatment regulations, including the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), mandate secondary treatment as a baseline for plants of this scale. Tertiary treatment may be required in sensitive watersheds or areas with high environmental protection requirements. The plant's design and operational specifics align with these national standards. The plant discharges treated effluent into local water bodies that ultimately drain into the Dongting Lake system and then the Yangtze River. This downstream connection highlights the plant's role in protecting the Yangtze River basin from nutrient and pollutant loads, supporting aquatic biodiversity and water quality in one of China's most important river systems.
Environmental context
The plant's treated effluent enters local streams that flow into the Lishui River, a tributary of the Yuan River, which feeds into Dongting Lake and eventually the Yangtze River. This watershed supports diverse aquatic life and provides water for agriculture and communities downstream. The Dongting Lake region is ecologically sensitive, serving as a critical wetland for migratory birds and fish spawning.
Frequently asked questions
The Hunan wastewater treatment plant is located in Lingyang Subdistrict, Cili County, within the city of Zhangjiajie in Hunan Province, China.
The plant serves a population of 115,000, classifying it as a medium-to-large agglomeration under Chinese municipal wastewater standards.
The plant discharges treated effluent into local water bodies that flow into the Lishui River, a tributary of the Yuan River, which eventually reaches Dongting Lake and the Yangtze River.
The plant operates under China's national wastewater discharge standards, primarily GB 18918-2002, which sets limits for pollutants and requires secondary treatment as a baseline for plants of this scale.
For a plant serving 115,000 people in China, secondary treatment is standard, with tertiary treatment often required in environmentally sensitive areas or for water reuse purposes.
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