Hunan Wastewater Treatment Plant, Shuangpai County, Yongzhou, Hunan, China

The Hunan wastewater treatment plant is located in Shuangpai County, Yongzhou City, Hunan Province, China, along Xiaoshui Road. It serves a population of approximately 48,500 people, making it a medium-sized municipal facility in the region. The plant plays a key role in managing domestic wastewater from the county and surrounding urban areas. As a Chinese wastewater treatment facility, it operates under national standards such as the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002). For a plant serving around 48,500 people, secondary treatment with nutrient removal is typically required to meet Class 1-A or 1-B effluent standards, depending on the receiving water body's sensitivity. It is expected to comply with applicable environmental regulations. The plant discharges treated effluent into local waterways that eventually flow into the Xiang River, a major tributary of the Yangtze River. The Xiang River basin supports diverse aquatic life and provides water for agriculture and industry downstream. Proper wastewater treatment here helps protect water quality in the Xiang River and ultimately the Yangtze River ecosystem.

The plant's treated effluent enters local streams that drain into the Xiang River, which flows northward through Hunan Province into Dongting Lake and then the Yangtze River. The Xiang River basin is ecologically significant, supporting fisheries and wetland habitats. Downstream areas rely on good water quality for drinking water supply and irrigation. The plant's operation helps reduce nutrient and pollutant loads, mitigating eutrophication risks in Dongting Lake.