Overview
Hunan wastewater treatment plant serves Loudi City in Hunan Province, China, with a population equivalent of 130,000. The facility operates under China's national wastewater discharge standards.
The Hunan wastewater treatment plant is located in Shima Mountain Street, Lianyuan, Loudi City, Hunan Province, China. It serves a population equivalent of 130,000, placing it in the medium-to-large agglomeration category under Chinese regulatory frameworks. The plant is situated inland, approximately 50 km from the coast, and discharges into local water bodies that ultimately drain into the Yangtze River basin. Under China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), plants serving populations over 100,000 are typically required to meet Class 1-A or Class 1-B standards, which include biological treatment and nutrient removal. Regulatory expectations for this scale mandate secondary treatment with potential tertiary upgrades for sensitive receiving waters. The plant's treated effluent enters local waterways that flow into the Zi River, a tributary of the Xiang River, which eventually joins the Yangtze River. The downstream environment supports diverse aquatic life and provides water for agricultural and industrial use. Effective treatment is critical to prevent eutrophication and protect downstream ecosystems in the densely populated Hunan region.
Environmental context
The plant discharges into local streams that feed the Zi River, a tributary of the Xiang River, which flows into Dongting Lake and ultimately the Yangtze River. The watershed supports intensive agriculture and urban areas, making nutrient removal important to prevent algal blooms in downstream lakes. The region's subtropical climate with high rainfall can increase runoff and pollutant loads, requiring robust treatment to maintain water quality.
Frequently asked questions
The plant is located in Shima Mountain Street, Lianyuan, Loudi City, Hunan Province, China.
The plant serves a population equivalent of 130,000 people.
Treated effluent is discharged into local streams that flow into the Zi River, a tributary of the Xiang River, which eventually reaches Dongting Lake and the Yangtze River.
The plant operates under China's GB 18918-2002 standard, which requires secondary treatment and nutrient removal for facilities serving over 100,000 people.
Plants of this scale typically employ activated sludge processes with biological nutrient removal to meet Class 1-A or 1-B discharge standards, depending on the sensitivity of the receiving water body.
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