Overview
Chongqing wastewater treatment plant serves 130,000 people in Banan District, Chongqing, China. It operates under China's national wastewater standards for urban agglomerations of this scale.
The Chongqing wastewater treatment plant is located on Binjiang Road in Longzhouwan Subdistrict, Banan District, Chongqing, China. It serves a population of 130,000, classifying it as a medium-to-large agglomeration under Chinese municipal wastewater classification. The plant is situated along the Yangtze River basin, which dominates the region's hydrology. The plant operates under China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002). For agglomerations serving over 100,000 people, Chinese regulations typically require secondary biological treatment with nutrient removal, especially in sensitive water bodies. The designed capacity is 1.00 (likely in 10,000 m³/day), indicating a facility sized for the served population. The plant discharges into the Yangtze River system, which flows eastward through central China before reaching the East China Sea near Shanghai. The Yangtze is ecologically critical, supporting diverse aquatic life including the endangered Yangtze finless porpoise and serving as a major migratory corridor for fish species. Effective wastewater treatment in this region is vital for maintaining water quality in one of the world's most important river systems.
Environmental context
The plant's receiving water body is part of the Yangtze River basin, China's largest river system, which drains into the East China Sea. The Yangtze supports a rich ecosystem including endemic fish species and migratory birds. Downstream, the river passes through densely populated areas and industrial zones, making nutrient and pollutant removal critical for preventing eutrophication and protecting aquatic habitats. The plant's location in the upper-middle reaches means its effluent quality directly affects downstream water users and ecological health.
Frequently asked questions
The plant is located on Binjiang Road in Longzhouwan Subdistrict, Banan District, Chongqing, China, along the Yangtze River.
The plant serves a population of 130,000, classifying it as a medium-to-large agglomeration under Chinese municipal wastewater standards.
The plant discharges treated effluent into the Yangtze River system, which flows eastward to the East China Sea. The discharge is regulated under China's national wastewater discharge standards.
The plant operates under China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), which sets limits for pollutants like BOD, COD, and nutrients based on receiving water sensitivity.
For agglomerations over 100,000 people, Chinese regulations typically require secondary biological treatment with nutrient removal, especially if discharging into sensitive water bodies like the Yangtze River.
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