ETE NUPORANGA - Secondary Wastewater Treatment Plant in Nuporanga, São Paulo

ETE NUPORANGA is a municipal wastewater treatment plant located in Nuporanga, a city in the state of São Paulo, Brazil. The plant serves a population of roughly 6,495 residents, placing it in the small-agglomeration category under Brazilian regulatory frameworks. It is situated in the Região Imediata de São Joaquim da Barra-Orlândia, part of the broader Ribeirão Preto metropolitan region. The plant provides secondary treatment, which is the standard level required for municipal wastewater in Brazil under CONAMA Resolution 430/2011 and other national regulations. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The plant's discharge volume is approximately 949.79 m³/day, indicating a consistent operational scale for the community it serves. The treated effluent from ETE NUPORANGA is discharged into local water bodies within the Paraná River basin, which ultimately drains into the Río de la Plata estuary. The plant plays a crucial role in protecting downstream water quality and supporting the ecological health of the region's rivers and streams. Its operation helps mitigate nutrient and pollutant loads that could otherwise impact aquatic life and water resources in the densely populated and agriculturally active state of São Paulo.

The plant discharges into the Paraná River basin, which flows through southeastern Brazil and eventually reaches the Río de la Plata estuary. This watershed supports diverse aquatic ecosystems and is important for regional water supply and agriculture. The secondary treatment provided by ETE NUPORANGA helps reduce organic pollution and nutrient loading, protecting downstream habitats and water quality in a region characterized by intensive sugarcane and citrus farming.