Overview
The Sichuan wastewater treatment plant serves Shuangliu District, Chengdu, China, with a population equivalent of 100,000. It discharges into the Min River basin, part of the Yangtze River system.
The Sichuan wastewater treatment plant is located in Shuangliu District, Chengdu, Sichuan Province, China, serving a population equivalent of 100,000. The facility is situated near the Min River, a major tributary of the Yangtze River, and operates within the densely populated Chengdu metropolitan area. As a plant serving 100,000 people, it falls under China's national wastewater discharge standards, which require secondary treatment as a minimum for urban wastewater. Facilities of this scale in China typically employ biological treatment processes such as activated sludge to meet Class 1A or 1B discharge standards under the GB 18918-2002 regulation. The treated effluent is discharged into the Min River, which flows into the Yangtze River, ultimately reaching the East China Sea. The plant plays a critical role in protecting the Min River and downstream ecosystems from nutrient pollution and pathogens, supporting water quality for agricultural, industrial, and domestic use in the region.
Environmental context
The plant discharges into the Min River, a major tributary of the Yangtze River, which flows through Sichuan and into the East China Sea. The Min River supports diverse aquatic life and provides water for irrigation and drinking water for millions. The plant's operation helps reduce nutrient loading and organic pollution, protecting downstream water quality and ecological health in the Yangtze basin.
Frequently asked questions
The plant is located in Shuangliu District, Chengdu, Sichuan Province, China, near the Min River.
The plant serves a population equivalent of 100,000 people.
The treated effluent is discharged into the Min River, a tributary of the Yangtze River, which flows to the East China Sea.
The plant must comply with China's GB 18918-2002 discharge standard, which sets limits for pollutants like COD, BOD, and ammonia. Secondary treatment is required for urban plants of this scale.
Plants of this size typically use biological treatment processes such as activated sludge or A2O to achieve Class 1A or 1B standards, including nutrient removal.
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