Zhejiang Wastewater Treatment Plant, Changshan County, Zhejiang, China

The Zhejiang wastewater treatment plant is located in Changshan County, within Quzhou City, Zhejiang Province, China. It serves a population of 65,000, classifying it as a medium-sized agglomeration under Chinese wastewater management standards. The plant is situated in the inland region of Zhejiang, away from coastal areas. As a municipal facility, it is expected to comply with China's national discharge standards, which require secondary treatment for urban wastewater. Typical facilities of this scale in China employ biological treatment processes such as activated sludge to meet the Class 1A or 1B discharge standards under the GB 18918-2002 regulation. The treated effluent from the plant likely discharges into local rivers or streams within the Qiantang River basin, which flows into the East China Sea. This watershed supports diverse aquatic life and provides water for agricultural and industrial use downstream. The plant plays a key role in protecting water quality in the region.

The plant discharges into the Qiantang River basin, which ultimately drains into the East China Sea. This watershed supports diverse aquatic ecosystems and is important for regional water supply. The inland location reduces direct marine impact, but the plant's effluent quality is critical for maintaining river health and downstream uses such as fishing and irrigation.