ETE Luís Antônio Wastewater Treatment Plant, Luiz Antônio, São Paulo

ETE Luís Antônio is a municipal wastewater treatment plant located in Luiz Antônio, a city in the Ribeirão Preto metropolitan area of São Paulo, Brazil. The plant serves a population of about 12,194 people, making it a medium-sized facility within the state's sanitation infrastructure. Brazil's wastewater treatment regulations are governed by federal laws such as the National Environmental Policy and CONAMA resolutions, which set discharge standards for pollutants. For plants of this scale, secondary treatment is typically required to reduce organic load and suspended solids before discharge. The plant's operational context aligns with these national standards, ensuring compliance with environmental quality objectives. The treated effluent is discharged into local water bodies that drain into the Pardo River basin, a tributary of the Grande River, which ultimately flows into the Paraná River system. This watershed supports diverse aquatic life and is important for regional water supply and agriculture. The plant plays a key role in protecting downstream ecosystems and public health.

The plant discharges into the Pardo River basin, part of the larger Paraná River system, which drains into the Río de la Plata estuary. This watershed supports diverse aquatic habitats and is vital for regional water resources. The treatment plant helps reduce nutrient and organic pollution, safeguarding downstream ecosystems and water quality for communities and agriculture.