Overview
Zhejiang wastewater treatment plant serves Yuhang District, Hangzhou, Zhejiang, China, with a population of 150,000. It operates under China's national wastewater standards, managing municipal sewage from the Liangzhu area.
The Zhejiang wastewater treatment plant is located in Liangzhu Subdistrict, Yuhang District, Hangzhou, Zhejiang Province, China. It serves a population of approximately 150,000 people, classifying it as a medium-to-large agglomeration under Chinese wastewater management frameworks. The plant is part of Hangzhou's municipal infrastructure, treating domestic and industrial wastewater from the surrounding urban area. As a facility serving 150,000 people, the plant is expected to meet China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which mandates secondary treatment as a minimum. For plants of this scale in sensitive watersheds, tertiary treatment with nutrient removal may be required to protect downstream water bodies. Typical facilities in this region employ activated sludge processes with biological nutrient removal. The plant discharges treated effluent into local waterways that ultimately drain into the Qiantang River basin and then into Hangzhou Bay, part of the East China Sea. The receiving water body supports diverse aquatic life and is an important ecological corridor for migratory fish. The plant's performance is critical for maintaining water quality in the densely populated Yangtze River Delta region.
Environmental context
The plant's treated effluent flows into local rivers within the Qiantang River basin, which empties into Hangzhou Bay and the East China Sea. This watershed supports diverse aquatic ecosystems, including important fisheries and migratory bird habitats. The region's high population density and industrial activity place significant pressure on water quality, making effective wastewater treatment essential for protecting downstream ecological health and coastal marine environments.
Frequently asked questions
The plant is located in Liangzhu Subdistrict, Yuhang District, Hangzhou, Zhejiang Province, China.
The plant serves approximately 150,000 people, classifying it as a medium-to-large municipal wastewater treatment facility.
The plant discharges treated effluent into local waterways that flow into the Qiantang River basin, eventually reaching Hangzhou Bay and the East China Sea.
The plant operates under China's national standard GB 18918-2002, which sets discharge limits for pollutants. Facilities of this scale typically require secondary treatment, with possible tertiary treatment for nutrient removal in sensitive areas.
Plants of this size commonly use activated sludge processes with biological nutrient removal to meet national discharge standards. Advanced treatment may be added to protect downstream water bodies.
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