Overview
Chongqing wastewater treatment plant serves Tongnan District, Chongqing, China, with a population equivalent of 100,000. It operates under China's national wastewater standards.
The Chongqing wastewater treatment plant is located in Tongnan District, Chongqing, China, serving a population equivalent of 100,000. This facility is part of the municipal wastewater infrastructure for the region, which is situated in the upper reaches of the Yangtze River basin. The plant's location in the hilly terrain of southwestern China influences its operational design and discharge considerations. As a plant serving a medium-sized agglomeration, it is expected to comply with China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which mandates secondary treatment as a baseline and tertiary treatment in sensitive areas. Typical facilities of this scale in China employ biological treatment methods such as activated sludge or oxidation ditch to meet national effluent standards. The treated wastewater from this plant ultimately drains into the Fu River, a tributary of the Jialing River, which flows into the Yangtze River. The Yangtze River is a critical ecological and economic artery, supporting diverse aquatic life and providing water for millions downstream. The plant's performance is vital for protecting water quality in this major river system.
Environmental context
The plant discharges into the Fu River, a tributary of the Jialing River, which joins the Yangtze River downstream. The Yangtze River basin is ecologically significant, hosting numerous fish species and providing habitat for migratory birds. The region's subtropical monsoon climate means seasonal rainfall can affect dilution capacity, making consistent treatment important for maintaining downstream water quality and supporting aquatic ecosystems.
Frequently asked questions
The plant is located in Tongnan District, Chongqing, China, specifically in Guilin Subdistrict. It serves the municipal area of Tongnan.
The plant serves a population equivalent of 100,000 people, classifying it as a medium-sized agglomeration under Chinese wastewater standards.
The treated wastewater is discharged into the Fu River, a tributary of the Jialing River, which ultimately flows into the Yangtze River.
The plant operates under China's national standard GB 18918-2002, which sets discharge limits for pollutants. Plants of this scale typically require secondary treatment, with tertiary treatment in sensitive areas.
For a plant serving 100,000 people in China, common treatment processes include activated sludge, sequencing batch reactors, or oxidation ditches, designed to meet Class I-A or I-B discharge standards under GB 18918-2002.
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