ETE Bento de Abreu Wastewater Treatment Plant, Bento de Abreu, São Paulo

ETE Bento de Abreu is a municipal wastewater treatment plant located in Bento de Abreu, a city in the state of São Paulo, Brazil. The plant serves a population of approximately 2,510 residents, classifying it as a small-scale facility within the region's sanitation infrastructure. The plant provides secondary treatment, which is the standard biological treatment process that removes organic matter and suspended solids. For small agglomerations in Brazil, secondary treatment is typically required under national regulations (CONAMA resolutions) to protect water quality. The plant's discharge volume is reported at 347.04 (likely cubic meters per day or similar unit), indicating its operational scale. The treated effluent is discharged into local watercourses that drain into the Paraná River basin, one of South America's major river systems. The downstream environment includes the Tietê River and eventually the Paraná River, which supports diverse aquatic life and is important for regional water supply and agriculture. Proper treatment at this plant helps reduce nutrient and pollutant loads to these sensitive water bodies.

The plant discharges into small streams that flow into the Tietê River, a major tributary of the Paraná River basin. The Paraná River system supports extensive biodiversity, including migratory fish species, and provides water for irrigation and drinking water downstream. The region's tropical climate means high rainfall variability, making consistent treatment important to prevent pollution during wet weather events.