ETE URU - Secondary Wastewater Treatment Plant in Uru, São Paulo, Brazil

ETE URU is a municipal wastewater treatment plant located in Uru, a small town in the state of São Paulo, Brazil. The plant serves a population of approximately 921 residents, classifying it as a small-scale facility within the region's sanitation infrastructure. As a secondary treatment plant, ETE URU employs biological processes to reduce organic matter and suspended solids. In Brazil, wastewater treatment plants are regulated by federal and state environmental agencies, with standards set by CONAMA resolutions. For small communities like Uru, secondary treatment is typical and meets the required effluent quality for discharge. The treated effluent from ETE URU is discharged into local water bodies that ultimately drain into the Paraná River basin, one of the most important hydrological systems in South America. The plant plays a key role in protecting downstream water quality and supporting the ecological health of the region's rivers and streams.

The plant discharges into the Paraná River basin, which flows into the Río de la Plata estuary. This watershed supports diverse aquatic ecosystems and is vital for agriculture and water supply in southeastern Brazil. The proximity to the coast (within 10 km) means that nutrients and pollutants from the effluent could influence coastal water quality, though secondary treatment reduces organic loads significantly.