Guangxi Wastewater Treatment Plant, Cenxi City | China

The Guangxi wastewater treatment plant is located in Cenxi City, part of the Guangxi Zhuang Autonomous Region in southern China. Serving an estimated population of 98,600, the plant is a key component of the region's municipal wastewater infrastructure, handling domestic sewage from the urban area. As a facility in China, the plant is subject to the national Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), which sets effluent limits for various pollutants. For a plant serving a medium-sized agglomeration like Cenxi, secondary treatment with nutrient removal is typically required to meet Class 1-A or 1-B standards, depending on the receiving water body's sensitivity. The treated effluent is discharged into local waterways that eventually flow into the Pearl River basin, which drains into the South China Sea. The plant plays a crucial role in protecting downstream aquatic ecosystems and maintaining water quality in the region's densely populated and agriculturally active areas.

The plant discharges into tributaries of the Pearl River system, which flows through Guangxi and Guangdong before reaching the South China Sea. The downstream environment supports diverse aquatic life and is important for local fisheries and agriculture. Protecting this watershed from nutrient pollution and pathogens is critical for both ecological health and human use.