Overview
Zhejiang wastewater treatment plant serves Putuo District, Zhoushan, Zhejiang, China, with a designed capacity of 1.00 unit and serves a population of 4,000. Located within 50 km of the coast, it discharges into the East China Sea.
The Zhejiang wastewater treatment plant is located in Putuo District, Zhoushan, Zhejiang Province, China. It serves a population of 4,000 and has a designed capacity of 1.00 unit. The plant is situated in a coastal urban area, part of the Zhoushan archipelago, and operates under China's national wastewater discharge standards. As a small-scale facility, the plant is expected to meet secondary treatment standards under China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002). Typical plants of this size in coastal China employ biological treatment processes to reduce pollutants before discharge. The plant's treated effluent ultimately reaches the East China Sea, a major marine ecosystem supporting fisheries and biodiversity. The coastal location necessitates careful management of nutrients and pathogens to protect marine water quality and public health in the surrounding Zhoushan fishing port area.
Environmental context
The plant discharges into the East China Sea via local waterways in the Zhoushan archipelago. This coastal region supports diverse marine life and important fisheries. The proximity to the coast means effluent can directly impact nearshore water quality, requiring effective treatment to prevent eutrophication and protect aquatic habitats.
Frequently asked questions
The plant is located in Putuo District, Zhoushan, Zhejiang Province, China, specifically in the Shenjiamen Street area of the Zhoushan archipelago.
The plant serves a population of 4,000 people, classifying it as a small-scale municipal wastewater treatment facility.
The plant discharges treated effluent into local waterways that flow into the East China Sea, given its coastal location within 50 km of the coast.
The plant operates under China's national standards, primarily the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), which sets limits for pollutants like COD, BOD, and nutrients.
For small plants serving around 4,000 people, typical treatment includes secondary biological processes such as activated sludge or sequencing batch reactors, often followed by disinfection, to meet national discharge standards.
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