Zhejiang Wastewater Treatment Plant, Haining, Zhejiang Province, China

The Zhejiang wastewater treatment plant is located in Dingqiao Town, Haining City, within Jiaxing Prefecture, Zhejiang Province, China. It serves a population equivalent of 260,000, classifying it as a large agglomeration under Chinese wastewater management standards. The plant's designed capacity is 1. As a large-scale municipal facility in China, the plant operates under the national Water Pollution Prevention and Control Law, which mandates secondary treatment for urban wastewater. Plants serving over 100,000 people are typically required to meet stringent discharge standards, including nutrient removal in sensitive areas. The facility's proximity to the coast suggests potential compliance with marine discharge regulations. The plant discharges into local water bodies that ultimately drain into the East China Sea via the Qiantang River system. This coastal region supports diverse aquatic ecosystems and is important for fisheries and migratory bird habitats. The plant's performance directly affects water quality in downstream estuaries and coastal zones.

The plant's treated effluent likely enters the Qiantang River basin, which flows into Hangzhou Bay and the East China Sea. This coastal watershed supports important fisheries and migratory bird habitats. The region's dense population and industrial activity place significant pressure on water quality, making effective treatment critical for protecting downstream marine ecosystems and maintaining ecological balance in the estuary.