Overview
Hunan wastewater treatment plant serves Shaodong City in Hunan Province, China, with a population equivalent of 268,000. The facility operates under China's national wastewater discharge standards.
The Hunan wastewater treatment plant is located in Songjiatang Street, Shaodong City, within Shaoyang Prefecture, Hunan Province, China. It serves a population equivalent of 268,000, placing it in the medium-to-large agglomeration category for Chinese municipal wastewater infrastructure. As a plant of this scale in China, it is expected to comply with the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which mandates secondary treatment with nutrient removal for facilities serving over 100,000 people. Regulatory requirements for this population tier typically involve biological treatment with nitrogen and phosphorus removal. The treated effluent is discharged into local water bodies within the Zi River basin, which flows into the Dongting Lake system and ultimately the Yangtze River. The plant plays a critical role in protecting downstream aquatic ecosystems and supporting water quality in the densely populated Hunan region.
Environmental context
The plant discharges into the Zi River watershed, a tributary of the Xiang River, which flows into Dongting Lake and then the Yangtze River. This region supports diverse aquatic life and is important for fisheries and agriculture. Proper treatment is essential to prevent eutrophication in Dongting Lake and maintain water quality for downstream communities.
Frequently asked questions
The plant is located in Songjiatang Street, Shaodong City, Shaoyang Prefecture, Hunan Province, China.
The plant serves a population equivalent of 268,000 people.
The treated effluent is discharged into the Zi River basin, which flows into the Xiang River, Dongting Lake, and ultimately the Yangtze River.
As a Chinese municipal plant serving over 100,000 people, it must comply with GB 18918-2002, which requires secondary treatment with nutrient removal.
Plants of this scale in China typically employ biological treatment processes such as activated sludge with nitrogen and phosphorus removal to meet Class 1A discharge standards.
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