Fujian Wastewater Treatment Plant, Youxi County, Fujian Province

The Fujian wastewater treatment plant is located in Youxi County, Sanming City, Fujian Province, China. It serves a population of approximately 95,600, classifying it as a medium-sized agglomeration under Chinese municipal wastewater management. The plant is situated inland, away from coastal areas, and its operations are part of the regional water infrastructure in the mountainous terrain of Fujian. The plant is expected to comply with China's Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002). For plants serving populations of this scale, secondary biological treatment with nutrient removal is typical to meet Class 1A or 1B standards, depending on the receiving water body's sensitivity. Regulatory oversight ensures adherence to national effluent limits. The treated wastewater is discharged into local watercourses that eventually flow into the Min River system, which drains into the East China Sea. This watershed supports diverse aquatic life and provides water for agricultural and urban uses downstream. The plant's performance is critical for maintaining water quality in the region's rivers and protecting the ecological health of the Min River basin.

The plant discharges into tributaries of the Min River, which flows through Fujian Province and empties into the East China Sea near Fuzhou. The Min River basin supports important fisheries and agricultural irrigation. Downstream ecosystems include estuarine habitats that serve as nursery grounds for fish and migratory birds. Maintaining proper treatment levels is essential to prevent nutrient pollution and protect these sensitive aquatic environments.