Overview
Chongqing wastewater treatment plant serves Qianjiang District, Chongqing, China, with a population of 110,000. It operates under China's national wastewater standards.
The Chongqing wastewater treatment plant is located in Qianjiang District, Chongqing, China, serving a population of approximately 110,000. This facility is part of the municipal infrastructure for the city of Qianjiang, situated in the southeastern part of Chongqing municipality. The plant plays a key role in managing domestic wastewater from the urban area. The plant operates under China's national wastewater discharge standards, which require secondary treatment for urban wastewater treatment plants. For a population of 110,000, the facility is expected to meet Class 1A or 1B standards under the GB 18918-2002 regulation, depending on the receiving water body's sensitivity. The plant's capacity and performance are subject to local environmental protection bureau oversight. The treated effluent is discharged into local water bodies that eventually flow into the Yangtze River basin, as Chongqing is located along the upper reaches of the Yangtze. The plant's operation helps protect downstream water quality in the Yangtze River and its tributaries, which are ecologically important for aquatic biodiversity and human water supply.
Environmental context
The plant discharges into local streams that feed into the Yangtze River, one of the world's major rivers. The Yangtze basin supports diverse aquatic life, including endangered species like the Chinese sturgeon and finless porpoise. Downstream, the river flows through densely populated areas and ultimately into the East China Sea. The plant's treatment performance is critical for reducing nutrient and pollutant loads in this ecologically sensitive watershed.
Frequently asked questions
The plant is located in Qianjiang District, Chongqing, China, at the address: 环城, 城东街道, 黔江区, 重庆市, 409000.
The treated effluent is discharged into local water bodies that are part of the Yangtze River basin. The plant's discharge must comply with China's national wastewater discharge standards (GB 18918-2002).
The plant helps protect the water quality of local tributaries that flow into the Yangtze River, which is the primary waterway in the region.
The plant operates under China's national standards for urban wastewater treatment, which require secondary treatment and set effluent limits for pollutants. For a population of 110,000, the plant is classified as a medium-sized facility and must meet Class 1A or 1B standards depending on the receiving water body.
Plants of this scale in China typically employ secondary biological treatment processes such as activated sludge or sequencing batch reactors, followed by disinfection. They are required to meet stringent effluent standards to protect the Yangtze River ecosystem.
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