ETE SAO BERNARDO - Secondary Wastewater Treatment Plant in Salvador, Bahia

ETE SAO BERNARDO is a wastewater treatment plant located in the São Rafael neighborhood of Salvador, Bahia, Brazil. It serves a small population of 506 residents and operates as part of the municipal wastewater infrastructure in the metropolitan region of Salvador. The plant provides secondary treatment, which is a standard biological process that removes organic matter and suspended solids. For a plant of this scale in Brazil, secondary treatment meets the national regulatory requirements under CONAMA resolutions, which mandate adequate treatment before discharge into water bodies. The treated effluent is discharged into the local watershed, which ultimately drains into the Atlantic Ocean. Salvador's coastal location means that the plant's discharge contributes to the water quality of nearby bays and coastal ecosystems, which support diverse marine life and are important for local fisheries and recreation.

The plant discharges into the drainage network of Salvador, which flows into the Baía de Todos os Santos, one of Brazil's largest and most ecologically significant bays. This bay supports mangroves, seagrass beds, and coral reefs, providing habitat for fish, crustaceans, and migratory birds. The coastal environment is sensitive to nutrient pollution, making proper treatment essential for maintaining water quality and ecosystem health.