Overview
Zhejiang wastewater treatment plant serves Lin'an District, Hangzhou, Zhejiang, China, with a population of 300,000. It operates under China's national wastewater standards, ensuring treated effluent meets local discharge limits.
The Zhejiang wastewater treatment plant is located in Jinbei Subdistrict, Lin'an District, Hangzhou, Zhejiang Province, China. It serves a population of approximately 300,000, classifying it as a large-scale municipal facility within the region's urban wastewater infrastructure. As a major treatment plant in Zhejiang, it is expected to comply with China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), which sets stringent limits for pollutants like COD, BOD, and ammonia nitrogen. For plants serving over 100,000 people, advanced treatment (Level 1 A standard) is typically required to protect sensitive water bodies. The plant's treated effluent likely discharges into local waterways that flow into the Qiantang River basin, eventually reaching the East China Sea. This downstream connection underscores the plant's role in safeguarding water quality in a densely populated and economically vital region of eastern China.
Environmental context
The plant's discharge contributes to the Qiantang River system, which drains into Hangzhou Bay and the East China Sea. This watershed supports diverse aquatic life and is a critical resource for drinking water, agriculture, and industry in Zhejiang. The region's high population density and industrial activity necessitate robust treatment to prevent eutrophication and protect downstream ecosystems, including important fisheries and migratory bird habitats.
Frequently asked questions
The plant is located in Jinbei Subdistrict, Lin'an District, Hangzhou, Zhejiang Province, China.
The plant serves approximately 300,000 people, making it a large-scale municipal facility.
Treated effluent is discharged into local waterways that flow into the Qiantang River basin, ultimately reaching Hangzhou Bay and the East China Sea.
The plant operates under China's GB 18918-2002 standard, which requires advanced treatment (Level 1 A) for large agglomerations to protect sensitive water bodies.
For plants serving over 100,000 people, China mandates tertiary treatment with nutrient removal to meet stringent effluent limits, especially in environmentally sensitive areas.
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