Guangdong Wastewater Treatment Plant, Zhongshan, Guangdong Province, China

The Guangdong wastewater treatment plant is situated in Nantou Town, Zhongshan City, Guangdong Province, China. It serves a population equivalent of 100,000, classifying it as a medium-to-large agglomeration under Chinese wastewater management standards. The facility is positioned within 50 km of the coast, indicating its discharge may influence coastal waters. As a plant serving 100,000 people, it falls under China's national wastewater discharge standards, which require secondary treatment as a minimum for urban wastewater treatment plants. The designed capacity is 1. Chinese regulations for such facilities typically mandate compliance with the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets limits on key pollutants. Given its proximity to the coast, treated effluent likely discharges into rivers or estuaries flowing into the South China Sea. This region supports diverse aquatic life and is important for local fisheries and marine ecosystems. The plant plays a key role in protecting downstream water quality in the Pearl River Delta, a densely populated and economically vital area.

The plant is located in the Pearl River Delta, which drains into the South China Sea via the Pearl River estuary. This watershed supports extensive mangrove forests, seagrass beds, and coral reefs, providing critical habitat for fish and migratory birds. The delta is also a major economic zone, making effective wastewater treatment essential to prevent eutrophication and protect coastal biodiversity.