ETE Cajuru - Municipal Wastewater Treatment Plant in Cajuru, São Paulo, Brazil

ETE Cajuru is a municipal wastewater treatment plant located in the Bairro São Sebastião area of Cajuru, within the state of São Paulo, Brazil. The plant serves a population of approximately 20,516 people, placing it in the medium agglomeration category for Brazilian wastewater infrastructure. Brazil's wastewater treatment standards are governed by federal regulations such as CONAMA Resolution 430/2011, which sets discharge quality requirements. For plants of this scale, secondary treatment is typically expected to reduce organic load and suspended solids. It operates under the national regulatory framework that mandates appropriate treatment for municipal wastewater. The treated effluent from ETE Cajuru is discharged into local water bodies within the Paraná River basin, which ultimately drains into the Río de la Plata estuary. The region's water resources support agricultural activities and local ecosystems, making proper treatment essential for protecting downstream water quality and aquatic life.

The plant discharges into the Paraná River basin, which flows through southeastern Brazil and into the Río de la Plata estuary. This watershed supports diverse aquatic habitats and is important for regional agriculture and water supply. Proper treatment helps protect downstream ecosystems from nutrient pollution and organic loading.