Overview
Zhejiang wastewater treatment plant serves Dongyang City, Zhejiang Province, China, with a population of 220,000. It operates under China's national wastewater discharge standards.
The Zhejiang wastewater treatment plant is located in Dongyang City, within Jinhua City, Zhejiang Province, China. It serves a population of 220,000, classifying it as a large agglomeration under Chinese wastewater management frameworks. The plant is situated along Jiangbin South Street in Dongyang, an urban area in eastern China. As a large-scale municipal facility, 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 serving over 100,000 people. Typical facilities of this scale employ activated sludge processes with biological nitrogen and phosphorus removal to comply with Class 1A or 1B standards. The plant discharges treated effluent into local waterways that ultimately drain into the East China Sea via the Qiantang River system. Zhejiang Province's dense population and industrial activity place pressure on water quality, making effective treatment critical for protecting downstream aquatic ecosystems and coastal waters.
Environmental context
The plant's treated effluent flows into the Dongyang River, a tributary of the Jinhua River, which joins the Qiantang River before emptying into Hangzhou Bay and the East China Sea. The downstream watershed supports diverse aquatic life and is an important migratory corridor for fish species. The region's subtropical monsoon climate with heavy rainfall can increase runoff and pollutant loads, underscoring the need for robust treatment to prevent eutrophication in coastal waters.
Frequently asked questions
The plant is located at Jiangbin South Street, Dongyang City, Jinhua City, Zhejiang Province, China.
The plant serves a population of 220,000, classifying it as a large agglomeration under Chinese wastewater regulations.
The plant discharges treated effluent into the Dongyang River, which flows into the Jinhua River, then the Qiantang River, and ultimately into Hangzhou Bay and the East China Sea.
The plant must comply with China's GB 18918-2002 standard, which requires secondary treatment with nutrient removal for large agglomerations. Discharge limits are set by local environmental authorities.
Plants of this scale typically use activated sludge processes with biological nitrogen and phosphorus removal to meet Class 1A or 1B standards, ensuring protection of receiving waters.
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