Overview
The Sichuan wastewater treatment plant serves the old urban area of Renshou County in Sichuan, China, with a population of 108,700. It operates under China's national wastewater discharge standards.
The Sichuan wastewater treatment plant is located in the old urban area of Renshou County (仁寿老城区), part of Meishan City in Sichuan Province, China. It serves a population of approximately 108,700, classifying it as a medium-to-large agglomeration under Chinese wastewater management frameworks. As a municipal facility in China, the plant is subject to the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), which sets effluent limits based on the receiving water body's sensitivity. For plants serving over 100,000 people, advanced treatment (Class 1A standard) is typically required to protect water quality, especially if discharging into sensitive rivers or lakes. The plant's treated effluent likely discharges into local waterways within the Min River basin, which flows southward into the Yangtze River. The Yangtze is a critical ecological and economic artery, supporting diverse aquatic life and providing water for millions downstream. Proper treatment at this plant helps reduce nutrient and pollutant loads to the Yangtze system.
Environmental context
The plant's discharge enters the local drainage network within the Min River basin, a major tributary of the Yangtze River. The Yangtze downstream supports extensive biodiversity, including endemic fish species, and is a vital water source for agriculture and urban centers. Effective nutrient removal at this plant helps mitigate eutrophication risks in the river system.
Frequently asked questions
The plant is located in the old urban area of Renshou County (仁寿老城区), in Meishan City, Sichuan Province, China.
The plant serves approximately 108,700 people, classifying it as a medium-to-large agglomeration under Chinese wastewater management standards.
The plant discharges into local waterways within the Min River basin, which flows into the Yangtze River. Proper treatment helps protect the Yangtze's water quality and aquatic ecosystems.
The plant operates under China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002). For facilities serving over 100,000 people, the standard typically requires advanced treatment (Class 1A) to limit pollutants like nitrogen and phosphorus.
For plants of this scale in China, secondary biological treatment with nutrient removal is standard, often achieving Class 1A discharge limits. This includes processes like activated sludge with denitrification and phosphorus removal.
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