Zhejiang Wastewater Treatment Plant, Rui'an, Zhejiang, China

The Zhejiang wastewater treatment plant is located in Rui'an City, Wenzhou, Zhejiang Province, China, near the Feiyun River Bridge. It serves a population of approximately 310,000, classifying it as a large agglomeration under Chinese wastewater management standards. The plant is situated within 50 km of the East China Sea coast, highlighting its importance in protecting coastal water quality. The plant's designed capacity is 1.00 (likely in cubic meters per day or similar unit). Under China's national wastewater discharge standards, plants serving populations over 100,000 are typically required to achieve secondary or advanced treatment to meet Class 1A or 1B effluent limits, especially in environmentally sensitive coastal areas. The plant's proximity to the coast suggests it may be subject to stricter nutrient removal requirements to prevent eutrophication in marine waters. The plant discharges into the Feiyun River, which flows into the East China Sea. This coastal region supports diverse marine life and is important for local fisheries and aquaculture. Effective treatment at this plant helps reduce pollutant loads to the river and sea, protecting both aquatic ecosystems and human uses such as recreation and fishing.

The plant's treated effluent enters the Feiyun River, which drains into the East China Sea near Wenzhou. This coastal zone is ecologically sensitive, supporting diverse marine habitats and serving as a spawning ground for commercially important fish species. The region's dense population and industrial activity place significant pressure on water quality, making advanced wastewater treatment critical for preventing algal blooms and maintaining ecosystem health.