Zhejiang Wastewater Treatment Plant, Linping District, Hangzhou, China

The Zhejiang wastewater treatment plant is located in Chongxian Subdistrict, Linping District, Hangzhou, Zhejiang Province, China. It serves a population of approximately 95,000 people, classifying it as a medium-sized agglomeration under Chinese municipal wastewater management. The plant's designed capacity is 1. As a facility in China, the plant is subject to the national Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), which sets effluent limits based on receiving water sensitivity. For plants serving populations over 50,000, secondary treatment with nutrient removal is typically required, especially in sensitive watersheds. The plant's location in the Yangtze River Delta region, a densely populated and economically vital area, implies stringent regulatory oversight. The plant discharges into the local water network that ultimately drains into the East China Sea via the Qiantang River and Hangzhou Bay. This coastal region supports diverse aquatic ecosystems and is important for fisheries and migratory birds. The plant's performance directly affects water quality in the bay and downstream marine environment.

The plant's treated effluent flows into local waterways that feed into the Qiantang River, which empties into Hangzhou Bay and the East China Sea. This coastal zone supports important fisheries and serves as a migratory corridor for waterbirds. The watershed is heavily influenced by urban and industrial runoff from the Hangzhou metropolitan area, making nutrient and pollutant control critical for maintaining downstream water quality and ecological health.