Overview
Zhejiang wastewater treatment plant serves Changxing County in Zhejiang, China, with a designed capacity of 1.00 and a population served of 280,000. It is located within 50 km of the coast, discharging into the local watershed.
The Zhejiang wastewater treatment plant is located in Changxing County, Huzhou City, Zhejiang Province, China. It serves a population of approximately 280,000, classifying it as a large agglomeration under Chinese wastewater management standards. The plant's designed capacity is 1.00, and it operates within the densely populated and industrialized Yangtze River Delta region. As a large-scale facility in China, the plant is subject to national discharge standards under the Environmental Protection Law and the Water Pollution Prevention and Control Action Plan. These regulations require advanced treatment for plants in sensitive areas, particularly those near coastal zones. The plant's proximity to the coast (within 50 km) suggests it may need to meet stringent nutrient removal targets to protect marine environments. The treated effluent from the plant ultimately drains into the Taihu Lake basin, a major freshwater lake in the Yangtze Delta, before reaching the East China Sea. The Taihu Lake watershed is ecologically sensitive, supporting diverse aquatic life and providing water resources for millions of people. The plant plays a critical role in reducing pollutant loads to this important water body.
Environmental context
The plant discharges into the Taihu Lake basin, which flows into the Yangtze River and eventually the East China Sea. The Taihu Lake is a large, shallow freshwater lake that supports a rich ecosystem, including endemic fish species and migratory birds. However, the region faces challenges from eutrophication due to nutrient runoff from agriculture and urban areas. The plant's treatment performance is vital for controlling phosphorus and nitrogen inputs to the lake, helping to mitigate algal blooms and maintain water quality for downstream communities.
Frequently asked questions
The plant is located in Changxing County, Huzhou City, Zhejiang Province, China, near the Taihu Lake basin.
The plant serves approximately 280,000 people, classifying it as a large agglomeration under Chinese wastewater standards.
The treated effluent is discharged into the Taihu Lake basin, which flows into the Yangtze River and ultimately the East China Sea.
The plant operates under China's Environmental Protection Law and Water Pollution Prevention and Control Action Plan, which set discharge standards for nutrients and other pollutants, especially for plants near sensitive coastal areas.
For large agglomerations in China, secondary treatment with nutrient removal (tertiary treatment) is typically required to meet national discharge standards, particularly in regions like the Yangtze River Delta where water bodies are sensitive to eutrophication.
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