Overview
Chongqing wastewater treatment plant serves Tongliang District in Chongqing, China, with a population equivalent of 144,000. The facility operates under China's national wastewater regulations for urban agglomerations.
The Chongqing wastewater treatment plant is located in Tongliang District, Chongqing, China, serving a population equivalent of 144,000. This places it within the category of medium-to-large urban agglomerations under Chinese wastewater management standards. The plant is situated in the inland region of Chongqing, a major municipality in southwestern China. As a facility serving over 100,000 people, it is subject to China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), which mandates secondary treatment as a minimum, with tertiary treatment required for discharge into sensitive water bodies. The regulatory framework ensures compliance with national effluent standards. The treated wastewater is discharged into local waterways that ultimately flow into the Yangtze River basin, a critical water system for central and eastern China. The plant plays a key role in protecting the aquatic environment of the region, supporting water quality and ecological health downstream.
Environmental context
The plant discharges into tributaries of the Yangtze River, which flows through Chongqing and eventually reaches the East China Sea. The local watershed supports diverse aquatic life and is an important resource for drinking water, agriculture, and industry. Protecting this water body from nutrient pollution and pathogens is essential for maintaining ecological balance and public health in the densely populated region.
Frequently asked questions
The plant is located in Tongliang District, Chongqing, China, at Huaiyuan Erzhi Road, Dongcheng Subdistrict.
The plant serves a population equivalent of 144,000, classifying it as a medium-to-large urban agglomeration.
Treated wastewater is discharged into local waterways that are part of the Yangtze River basin, ultimately flowing to the East China Sea.
The plant operates under China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), which requires secondary treatment as a minimum and tertiary treatment for sensitive areas.
For agglomerations of this size, Chinese regulations typically mandate secondary biological treatment, with additional nutrient removal if discharging into sensitive water bodies.
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