Zhejiang Wastewater Treatment Plant, Shengzhou, Zhejiang, China

The Zhejiang wastewater treatment plant is located in Shengzhou City, within the Zhejiang Province of China. It serves a population of approximately 80,000 people, classifying it as a medium-sized municipal facility. The plant is situated in the inland region of eastern China, contributing to local water management. As a facility serving 80,000 people, the plant is expected to meet secondary treatment standards under China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002). This regulation sets effluent limits for key pollutants such as COD, BOD, ammonia nitrogen, and phosphorus. Typical plants of this scale employ biological treatment methods like activated sludge or A2O processes. The plant discharges treated wastewater into local water bodies that eventually flow into the East China Sea. The receiving waters support aquatic ecosystems and are used for agricultural and industrial purposes downstream. Effective treatment is crucial to prevent eutrophication and protect water quality in the region's river networks.

The plant's treated effluent likely enters the Cao'e River or a tributary, which flows into Hangzhou Bay and ultimately the East China Sea. This coastal region supports diverse marine life and is important for fisheries. The watershed is subject to seasonal monsoons, affecting dilution capacity, and requires robust treatment to manage nutrient loads and prevent algal blooms.