Overview
Zhejiang wastewater treatment plant serves Tonglu County, Hangzhou, Zhejiang, China, with a population of 43,000. It operates under China's national wastewater standards.
The Zhejiang wastewater treatment plant is located in Tonglu County, part of Hangzhou City in Zhejiang Province, China. It serves a population of approximately 43,000 people, placing it in the medium agglomeration category for Chinese municipal wastewater infrastructure. As a Chinese municipal plant, 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 plants of this scale, secondary biological treatment is standard, with possible nutrient removal depending on local environmental requirements. The plant discharges into the local water system within the Fuchun River basin, which flows into Hangzhou Bay and ultimately the East China Sea. Its operation is critical for protecting downstream water quality in this densely populated and economically active region of eastern China.
Environmental context
The plant discharges into the Fuchun River watershed, a tributary of the Qiantang River that flows through Hangzhou and into Hangzhou Bay, an ecologically important estuary on the East China Sea. The downstream environment supports diverse aquatic life and is a key migratory corridor for fish species. Nutrient loading from wastewater can contribute to eutrophication in the bay, making effective treatment essential for maintaining coastal water quality.
Frequently asked questions
The plant is located in Tonglu County, Hangzhou City, Zhejiang Province, China, along the Tongqian line.
The plant serves approximately 43,000 people, classifying it as a medium-sized municipal wastewater treatment facility.
The plant discharges into the Fuchun River watershed, which flows into the Qiantang River and then into Hangzhou Bay on the East China Sea.
The plant must comply with China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets limits on BOD, COD, suspended solids, nutrients, and pathogens.
For a plant of this scale, secondary biological treatment is standard, often including activated sludge processes. In sensitive watersheds, additional nutrient removal may be required to meet local discharge permits.
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