Guangdong Wastewater Treatment Plant, Zhaoqing | China

The Guangdong wastewater treatment plant is located in Zhaoqing City, Guangdong Province, China, serving a population of approximately 120,000. The facility is situated in the urban area of Duanzhou District, near the Xijiang River, a major tributary of the Pearl River system. As a municipal plant, it plays a key role in managing wastewater from the city's residential and commercial areas. Under China's national wastewater treatment standards, plants serving populations of this scale are typically required to achieve secondary treatment or higher, with effluent standards aligned to the Surface Water Quality Standards (GB 3838-2002). The plant operates within the regulatory framework of the Water Pollution Prevention and Control Law, which mandates treatment to protect receiving water bodies. The plant's capacity and performance are subject to local environmental monitoring. The treated effluent is discharged into the Xijiang River, which flows southeast into the Pearl River Delta and ultimately into the South China Sea. This water body supports diverse aquatic life and is a critical resource for downstream communities, including the Pearl River Delta economic zone. The plant's operation helps reduce pollutant loads, safeguarding water quality for ecological and human uses.

The plant discharges into the Xijiang River, a major tributary of the Pearl River system, which flows through the Pearl River Delta and empties into the South China Sea. The watershed supports diverse aquatic ecosystems and provides water for agriculture, industry, and drinking water for millions of people. The plant's effluent management is crucial for maintaining water quality in this densely populated and economically vital region.