Overview
Chongqing wastewater treatment plant serves approximately 100,000 people in the Dadukou District of Chongqing, China. The facility operates under China's national wastewater regulations.
The Chongqing wastewater treatment plant is located in the Dadukou District of Chongqing, a major municipality in southwestern China. The facility serves an estimated population of 100,000, placing it in the medium-scale category for urban wastewater treatment in China. Under China's national wastewater discharge standards (GB 18918-2002), treatment plants of this scale are typically required to achieve at least secondary treatment to protect receiving water bodies. The plant's designed capacity is 1. The plant discharges treated wastewater into the Yangtze River basin, as Chongqing is situated along the upper reaches of the Yangtze. The Yangtze River flows eastward through central China before emptying into the East China Sea near Shanghai. This downstream environment supports diverse aquatic ecosystems and provides water for millions of people, making effective treatment critical for water quality and ecological health.
Environmental context
The plant is located in the Yangtze River basin, with treated effluent ultimately reaching the Yangtze River, which flows over 6,300 km to the East China Sea. The Yangtze supports a wide range of aquatic life, including endangered species such as the Chinese sturgeon and finless porpoise. Effective wastewater treatment is essential to reduce nutrient and pollutant loads that could contribute to eutrophication and habitat degradation in downstream waters.
Frequently asked questions
The plant is located in the Dadukou District of Chongqing, a major municipality in southwestern China.
The plant serves approximately 100,000 people, classifying it as a medium-scale urban wastewater treatment facility.
The plant discharges treated wastewater into the Yangtze River basin, which flows eastward to the East China Sea.
Wastewater treatment in China is regulated under the national Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets limits for pollutants like COD, BOD, and nutrients based on treatment level.
For a plant of this scale in China, secondary treatment is typically required, often with additional nutrient removal in sensitive areas, to meet the national discharge standards.
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