ETE Santa Albertina - Secondary Wastewater Treatment Plant in Santa Albertina, São Paulo

ETE Santa Albertina is a municipal wastewater treatment plant located in Santa Albertina, a city in the state of São Paulo, Brazil. The plant serves a population of approximately 5,006 people, classifying it as a small agglomeration under Brazilian sanitation standards. It is situated in the southeastern region of Brazil, near the border with Minas Gerais. The plant provides secondary treatment, which is the standard level required for municipal wastewater in Brazil under the National Environmental Council (CONAMA) resolutions. Secondary treatment typically involves biological processes to remove organic matter and suspended solids. The treated effluent is discharged into local water bodies that eventually drain into the Paraná River basin, one of the most important river systems in South America. The plant's proximity to the coast (within 10 km) means its discharge can influence coastal water quality. The region's aquatic ecosystems support diverse species and are vital for local communities and agriculture.

The plant discharges into the Paraná River basin, which flows through southeastern Brazil and eventually reaches the Río de la Plata estuary. The local watershed includes small streams and rivers that support diverse aquatic life, including fish species important for regional fisheries. The plant's coastal proximity means its effluent can affect nearshore marine environments, making proper treatment essential for protecting water quality and biodiversity.