Chongqing Wastewater Treatment Plant, Dingjia Street, Bishan District, Chongqing, China

The Chongqing wastewater treatment plant is located at Lianhua Road, Dingjia Street, Bishan District, Chongqing, China. It serves a population of approximately 15,000, classifying it as a small to medium-sized municipal facility within the broader Chongqing metropolitan area. The plant is situated inland, away from coastal zones, and its operations are integral to local water management in the region. As a Chinese wastewater treatment facility, the plant is subject to the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), which sets effluent limits for conventional pollutants, nutrients, and heavy metals. For a plant serving 15,000 people, secondary treatment is typically required, with potential nutrient removal if discharging into sensitive water bodies. The regulatory framework ensures compliance with national standards. The plant discharges treated effluent into local waterways that ultimately flow into the Yangtze River basin, a major ecological and economic corridor in China. The Yangtze River supports diverse aquatic life and provides water for millions of people. Proper treatment at this plant helps protect downstream water quality and aquatic habitats in the region.

The plant's treated effluent enters local streams that drain into the Yangtze River basin. The Yangtze is China's longest river and a critical freshwater resource, supporting diverse fish species and migratory birds. Downstream, the river flows through densely populated areas before reaching the East China Sea. Effective wastewater treatment is essential to prevent eutrophication and protect aquatic ecosystems in this ecologically significant watershed.