Overview
The Guangdong wastewater treatment plant serves 165,000 people in Sanxiang Town, Zhongshan City, Guangdong Province, China. It is located within 50 km of the coast and discharges into the Pearl River Delta system.
The Guangdong wastewater treatment plant is situated in Sanxiang Town, Zhongshan City, in the southern Chinese province of Guangdong. Serving a population of 165,000, this facility is part of the region's municipal wastewater infrastructure, which supports the densely populated Pearl River Delta area. The plant's designed capacity is 1.00 (likely in cubic meters per day or similar unit), indicating a medium-to-large scale operation. Under China's national wastewater discharge standards (GB 18918-2002), plants serving agglomerations of this size are typically required to meet Class 1A or 1B effluent limits, which mandate secondary treatment with nutrient removal. Regulatory expectations for such a population tier suggest advanced treatment to protect sensitive downstream waters. The treated effluent from this plant ultimately enters the Pearl River network, which flows into the South China Sea via the Pearl River Delta. The delta is a critical ecological and economic zone, supporting diverse aquatic life and providing water for millions. The plant's proximity to the coast (within 50 km) underscores the importance of effective nutrient and pollutant removal to prevent eutrophication and protect marine habitats.
Environmental context
The plant discharges into the Pearl River system, which drains into the South China Sea through the Pearl River Delta. This delta is a highly productive estuary that supports diverse fish and bird populations and serves as a nursery for many marine species. The region faces challenges from rapid urbanization and industrial activity, making effective wastewater treatment essential to maintain water quality and ecosystem health in the downstream coastal environment.
Frequently asked questions
The plant is located in Sanxiang Town, Zhongshan City, Guangdong Province, China, at coordinates 22.334 N, 113.397 E.
The plant serves a population of 165,000 people, classifying it as a medium-to-large agglomeration under Chinese wastewater regulations.
The treated effluent is discharged into the Pearl River system, which flows through the Pearl River Delta and ultimately into the South China Sea.
The plant operates under China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets effluent limits for BOD, COD, nitrogen, and phosphorus based on the receiving water's sensitivity.
For agglomerations of this size, Chinese regulations typically require secondary treatment with biological nutrient removal to meet Class 1A or 1B standards, especially when discharging into sensitive coastal or estuarine waters.
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