Overview
Zhejiang wastewater treatment plant serves Daishan County in Zhoushan, Zhejiang, China. It treats wastewater for approximately 45,000 people and is located within 50 km of the coast.
The Zhejiang wastewater treatment plant is located in Gaoting Town, Daishan County, within the Zhoushan archipelago of Zhejiang Province, China. It serves a population of approximately 45,000 people, placing it in the medium agglomeration category for Chinese municipal wastewater systems. As a plant in China, it operates under national wastewater discharge standards (GB 18918-2002) and local environmental regulations. Chinese regulations typically require secondary or advanced treatment for plants serving populations over 10,000, especially in coastal and environmentally sensitive areas. The plant's proximity to the coast (within 50 km) means its treated effluent likely discharges into the East China Sea via local waterways. This coastal discharge requires compliance with stringent nutrient and pollutant limits to protect marine ecosystems, including fisheries and biodiversity in the Zhoushan fishing grounds.
Environmental context
The plant is situated in the Zhoushan archipelago, a coastal region of Zhejiang Province. Treated wastewater likely flows into the East China Sea, a major marine ecosystem supporting diverse aquatic life and important fisheries. The coastal environment is sensitive to nutrient loading and pollutants, making effective treatment critical for preserving water quality and marine habitats.
Frequently asked questions
The plant is located in Gaoting Town, Daishan County, within the Zhoushan archipelago of Zhejiang Province, China.
The plant serves approximately 45,000 people, classifying it as a medium-sized municipal wastewater facility.
Given its coastal location within 50 km of the East China Sea, the plant likely discharges treated effluent into local waterways that flow into the sea, subject to national discharge standards.
The plant operates under China's national wastewater discharge standard GB 18918-2002, which sets limits on pollutants like COD, BOD, nitrogen, and phosphorus. Coastal plants may face additional local requirements to protect marine environments.
For medium-sized agglomerations in China, secondary biological treatment (e.g., activated sludge) is standard, often with nutrient removal to meet discharge standards, especially in sensitive coastal areas.
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