Overview
The Sichuan wastewater treatment plant serves approximately 119,400 people in Chengdu, Sichuan Province, China. It is an inland facility operating under China's national wastewater discharge standards.
The Sichuan wastewater treatment plant is located in the Jinjiang District of Chengdu, the capital of Sichuan Province in southwestern China. The facility serves a population of around 119,400, placing it in the medium-to-large agglomeration category under Chinese municipal wastewater management frameworks. As a plant serving over 100,000 people, it is subject to China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which mandates secondary treatment with nutrient removal for such scales. Typical facilities of this size employ activated sludge processes with biological nitrogen and phosphorus removal to meet Class 1A or 1B effluent standards. The plant discharges treated effluent into local waterways that ultimately drain into the Yangtze River basin via the Min River system. This region is ecologically significant as part of the upper Yangtze watershed, supporting diverse aquatic life and providing water for agriculture and urban use downstream. The plant's operation is critical for protecting water quality in this densely populated and economically vital area.
Environmental context
The plant's treated effluent flows into the Min River, a major tributary of the Yangtze River, which eventually reaches the East China Sea. The Min River basin supports a rich aquatic ecosystem, including endemic fish species, and provides drinking water for millions downstream. The plant's discharge must comply with strict nutrient limits to prevent eutrophication in receiving waters, which are ecologically sensitive due to their role in sustaining biodiversity and regional water security.
Frequently asked questions
The plant is located in the Jinjiang District of Chengdu, Sichuan Province, China, in the southwestern part of the country.
The plant serves approximately 119,400 people, classifying it as a medium-to-large agglomeration under Chinese wastewater regulations.
The treated effluent is discharged into local waterways that flow into the Min River, a tributary of the Yangtze River, eventually reaching the East China Sea.
The plant operates under China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets effluent limits for nutrients and other pollutants.
Plants of this scale typically use activated sludge processes with biological nutrient removal to meet Class 1A or 1B standards, ensuring high-quality effluent for discharge into sensitive water bodies.
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