Overview
Hunan wastewater treatment plant serves Kaifu District, Changsha, China, with a population equivalent of 850,000. It operates under China's national wastewater discharge standards.
The Hunan wastewater treatment plant is located in Kaifu District, Changsha, Hunan Province, China. It serves a population of approximately 850,000 people, classifying it as a large-scale municipal facility within the urban area of Changsha. As a major treatment plant in China, it is subject to the national Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002). For large agglomerations, secondary treatment with nutrient removal is typically required, especially for plants discharging into sensitive water bodies. The regulatory framework ensures compliance with effluent limits. The plant discharges treated wastewater into the local water system, which ultimately flows 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. Proper treatment is critical to protect the river's ecological health and the Yangtze River basin.
Environmental context
The plant's treated effluent enters the local drainage network, which flows into the Xiang River, a key tributary of the Yangtze River. The Xiang River basin supports a variety of freshwater species and is an important water source for communities and agriculture in Hunan Province. Downstream, the Yangtze River is one of the world's most biodiverse rivers, hosting numerous fish species and migratory birds. Effective wastewater treatment helps reduce nutrient and pollutant loads, safeguarding the river's ecological balance.
Frequently asked questions
The plant is located in Kaifu District, Changsha, Hunan Province, China, near Kaifu Temple on Kaifu Temple Road.
The plant serves approximately 850,000 people, making it a large-scale municipal facility.
The treated wastewater is discharged into the local water system, which flows into the Xiang River, a major tributary of the Yangtze River.
The plant operates under China's national standard GB 18918-2002, which sets discharge limits for pollutants. Large plants like this typically require secondary treatment with nutrient removal.
For large agglomerations in China, secondary biological treatment with nutrient removal (nitrogen and phosphorus) is standard, often followed by disinfection, to meet the Class 1A or 1B discharge standards.
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