ETE NANTES Wastewater Treatment Plant, Nantes, São Paulo, Brazil

ETE NANTES is a wastewater treatment facility located in the municipality of Nantes, within the state of São Paulo, Brazil. The plant serves a small population of approximately 2,582 residents, reflecting its role in a rural or small urban community. It operates under Brazil's national environmental regulations, which require secondary treatment for municipal wastewater to protect water quality. The plant provides secondary treatment, which typically involves biological processes to reduce organic matter and suspended solids. The treated effluent volume is reported at 409.02 cubic meters, indicating the scale of daily operations. The plant's design aligns with the needs of the local population. The treated wastewater is discharged into local water bodies, contributing to the preservation of the Paraná River basin, which is a major hydrological system in southeastern Brazil. The plant's operations help safeguard downstream ecosystems and support regional water resource management.

The plant discharges into the Paraná River basin, which flows through São Paulo and ultimately reaches the Río de la Plata estuary. This watershed supports diverse aquatic life and is vital for agriculture and water supply. The secondary treatment reduces organic pollutants, protecting downstream habitats from eutrophication and oxygen depletion.