ETE Várzea Nova BA - Secondary Wastewater Treatment Plant in Várzea Nova, Bahia

ETE Várzea Nova BA is a municipal wastewater treatment facility located in Várzea Nova, a municipality in the state of Bahia, Brazil. The plant serves a population of approximately 6,664 residents, classifying it as a small-scale treatment facility within the region's sanitation infrastructure. The plant provides secondary treatment, which is the standard biological process required under Brazilian regulations (CONAMA resolutions) for communities of this size. This level of treatment removes organic matter and suspended solids, ensuring the effluent meets basic quality standards before discharge. The plant handles an average daily flow of 456.33 cubic meters. The treated effluent is discharged into local water bodies that ultimately drain into the São Francisco River basin, one of Brazil's most important river systems. The plant's operation helps protect downstream water quality and supports the ecological health of the semi-arid Caatinga biome, which is sensitive to pollution and water scarcity.

The plant discharges into local streams that are part of the São Francisco River basin, a major waterway flowing through northeastern Brazil to the Atlantic Ocean. The region's semi-arid climate makes water resources particularly vulnerable to pollution, and the plant's secondary treatment helps maintain water quality for downstream communities and ecosystems, including the Caatinga biome's diverse but fragile aquatic life.