Overview
The Zhejiang wastewater treatment plant serves 780,000 people in Xiaoshan District, Hangzhou, China. It operates under China's national wastewater standards, discharging into local water bodies.
The Zhejiang wastewater treatment plant is located in Xiaoshan District, Hangzhou, Zhejiang Province, China. It serves a population of approximately 780,000, classifying it as a large-scale municipal facility. The plant is situated in the densely populated Yangtze River Delta region, an area with significant industrial and urban development. As a large agglomeration, the plant is expected to meet China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), which mandates secondary treatment with nutrient removal for plants of this scale. The designed capacity is 1. Typical facilities in this region employ activated sludge processes with biological nutrient removal. The treated effluent is discharged into local waterways that ultimately drain into the Qiantang River and then into Hangzhou Bay, part of the East China Sea. This watershed supports diverse aquatic life and is an important ecological and economic resource. The plant's performance is critical for protecting downstream water quality and the coastal environment.
Environmental context
The plant discharges into the Qiantang River basin, which flows into Hangzhou Bay and the East China Sea. This coastal watershed supports important fisheries and migratory bird habitats. The region experiences a subtropical monsoon climate with high seasonal rainfall, making effective wastewater treatment essential to prevent eutrophication and protect marine biodiversity.
Frequently asked questions
The plant is located in Xiaoshan District, Hangzhou, Zhejiang Province, China, specifically on Pinglan Road in Ningwei Subdistrict.
The plant serves approximately 780,000 people, making it a large-scale municipal wastewater treatment facility.
The treated effluent is discharged into local waterways that flow into the Qiantang River, which ultimately reaches Hangzhou Bay and the East China Sea.
The plant operates under China's national standard GB 18918-2002, which requires secondary treatment with nutrient removal for large-scale facilities serving over 100,000 people.
For a plant of this scale in China, typical treatment includes primary sedimentation, activated sludge biological treatment, and disinfection, often with biological nutrient removal to meet stringent effluent standards.
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