Zhejiang Wastewater Treatment Plant, Yinzhou District, Ningbo

The Zhejiang wastewater treatment plant is located in the Yinzhou District of Ningbo, within Zhejiang Province, China. It serves a population of approximately 32,000 residents, classifying it as a medium-sized agglomeration under Chinese wastewater management standards. The facility is situated in an urban area near the Yong River basin. As a plant serving a medium population, it is expected to meet secondary treatment standards under China's national wastewater discharge regulations (GB 18918-2002). The plant operates within China's broader environmental framework, which mandates nutrient removal for sensitive water bodies. The treated effluent from this plant ultimately flows into the Yong River, which drains into the East China Sea. The downstream environment supports diverse aquatic life and is an important coastal ecosystem. The plant plays a key role in protecting local water quality and reducing pollution loads to the marine environment.

The plant discharges into the Yong River, a major waterway in Zhejiang that flows through Ningbo and empties into the East China Sea. The downstream coastal zone supports fisheries and migratory bird habitats. The region's dense urban and industrial development makes wastewater treatment critical for preventing eutrophication and maintaining water quality in the receiving marine environment.