Overview
Zhejiang wastewater treatment plant serves Jiande City in Zhejiang Province, China, with a population equivalent of 80,000. It operates under China's national wastewater discharge standards.
The Zhejiang wastewater treatment plant is located in Niushi Wu, Jiande City, within the Hangzhou prefecture of Zhejiang Province, China. It serves a population equivalent of 80,000, classifying it as a medium-sized municipal facility under Chinese wastewater management frameworks. As a plant in China, it is subject to the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets effluent limits for conventional pollutants, nutrients, and pathogens. For a facility of this scale, secondary treatment with nutrient removal is typically required to meet Class 1-A or 1-B standards, depending on the receiving water's sensitivity. The plant discharges into the local watershed, which ultimately drains into the Qiantang River basin and then into the East China Sea. The downstream environment supports diverse aquatic life and is an important ecological corridor in the region. Proper treatment helps protect water quality in the Qiantang River and coastal areas.
Environmental context
The plant's treated effluent enters the local water system, which flows into the Qiantang River and eventually reaches the East China Sea. The Qiantang River is a major waterway in Zhejiang, supporting fisheries and agricultural irrigation. The downstream estuary and coastal zone are ecologically sensitive, hosting diverse marine species and serving as a migratory route for aquatic life. Effective wastewater treatment is critical to prevent eutrophication and maintain water quality in this densely populated and economically active region.
Frequently asked questions
The plant is located in Niushi Wu, Jiande City, Hangzhou Prefecture, Zhejiang Province, China.
The plant serves a population equivalent of 80,000 people.
The plant discharges into the local watershed, which flows into the Qiantang River and eventually the East China Sea.
The plant must comply with China's GB 18918-2002 discharge standard, which sets limits for pollutants like COD, BOD, nitrogen, and phosphorus. For a plant of this size, secondary treatment with nutrient removal is typical.
Under Chinese regulations, a municipal plant of this scale is generally required to achieve at least secondary treatment, often with biological nutrient removal, to meet Class 1-A or 1-B effluent standards.
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