Overview
Hunan wastewater treatment plant serves Changde City in Hunan Province, China, with a population equivalent of 158,000. It operates under China's national wastewater discharge standards.
The Hunan wastewater treatment plant is located in Taoyuan County, Changde City, Hunan Province, China. It serves a population equivalent of 158,000, classifying it as a medium-to-large agglomeration under Chinese wastewater management frameworks. The plant is situated inland, away from coastal areas, and its operations are part of the municipal infrastructure for the region. As a facility serving over 100,000 people, the plant is expected to meet China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), which mandates secondary treatment with nutrient removal for sensitive water bodies. Regulatory requirements for this scale typically include biological treatment and disinfection. The plant discharges treated effluent into local waterways that ultimately drain into the Dongting Lake system, a major tributary of the Yangtze River. Dongting Lake is a critical ecological zone supporting diverse aquatic life and migratory birds. The plant's performance directly affects water quality in this important watershed, which is subject to China's Water Pollution Prevention and Control Action Plan.
Environmental context
The plant's treated effluent flows into local rivers that feed into Dongting Lake, the second-largest freshwater lake in China, which then drains into the Yangtze River. Dongting Lake is an ecologically sensitive area that supports a rich diversity of fish, birds, and aquatic plants, and it serves as a key flood storage basin. The plant's discharge must comply with stringent standards to protect this vital downstream ecosystem from nutrient pollution and other contaminants.
Frequently asked questions
The plant is located in Taoyuan County, Changde City, Hunan Province, China.
The plant serves a population equivalent of 158,000 people.
The plant discharges into local rivers that flow into Dongting Lake and eventually the Yangtze River, protecting these important aquatic ecosystems.
The plant operates under China's GB 18918-2002 discharge standard, which requires secondary treatment with nutrient removal for facilities serving over 100,000 people in sensitive areas.
For this scale, typical treatment includes biological processes (e. g. , activated sludge), secondary sedimentation, and disinfection, often with advanced nutrient removal to meet Class 1A or 1B standards.
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