Overview
Hunan wastewater treatment plant serves Leiyang, Hunan province, China, with a population equivalent of 183,000. The plant discharges into local waterways within the Xiang River basin.
The Hunan wastewater treatment plant is located in Leiyang, a city in Hunan province, China. It serves a population equivalent of 183,000, placing it in the medium-to-large agglomeration category under Chinese wastewater regulations. The plant is situated in the Xiang River basin, which ultimately drains into Dongting Lake and then the Yangtze River. Under China's national wastewater standards, plants serving this population size are typically required to meet Class 1A or 1B discharge limits, which mandate secondary treatment with nutrient removal. Facilities of this scale in Hunan generally employ activated sludge processes with biological nutrient removal to comply with national effluent standards. The treated effluent from the plant is discharged into local watercourses that feed into the Xiang River, a major tributary of the Yangtze River. The Xiang River supports diverse aquatic life and provides water for agricultural and industrial use downstream. The plant's performance is critical for maintaining water quality in the Xiang River basin, which flows through densely populated areas before reaching Dongting Lake, an ecologically significant wetland.
Environmental context
The plant discharges into the Xiang River system, which flows through Hunan province into Dongting Lake, a large freshwater lake connected to the Yangtze River. The Xiang River basin supports diverse aquatic ecosystems and provides drinking water for millions. Downstream, Dongting Lake is a critical flood storage area and habitat for migratory birds and fish species. The plant's nutrient removal performance is important for preventing eutrophication in the lake.
Frequently asked questions
The plant is located in Leiyang, Hunan province, China, in the Shuidongjiang subdistrict near Luqi.
The plant serves a population equivalent of 183,000, classifying it as a medium-to-large agglomeration under Chinese wastewater regulations.
The plant discharges into local waterways that flow into the Xiang River, a major tributary of the Yangtze River, eventually reaching Dongting Lake.
Plants of this scale in China are typically required to meet Class 1A or 1B discharge standards under the national Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which mandates secondary treatment with nutrient removal.
China's wastewater treatment plants are regulated under the Water Pollution Prevention and Control Law and national discharge standards. Plants serving over 100,000 people are subject to stricter effluent limits and regular monitoring by provincial environmental authorities.
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