ETE 12 DE DEZEMBRO Wastewater Treatment Plant, Itapetinga, Bahia

ETE 12 DE DEZEMBRO is a municipal wastewater treatment plant located in Itapetinga, a city in the state of Bahia, Brazil. The plant serves a population of 1,247, classifying it as a small-scale facility within the region's sanitation infrastructure. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. Under Brazil's national environmental regulations (CONAMA Resolutions), secondary treatment is the minimum requirement for most inland wastewater discharges, ensuring compliance with water quality standards for receiving water bodies. The treated effluent is discharged into local waterways that drain into the Atlantic Ocean via the Pardo River basin. The plant plays a key role in protecting downstream aquatic ecosystems and supporting public health in the Itapetinga area.

The plant discharges into the Pardo River basin, which flows through the Atlantic Forest biome and eventually reaches the Atlantic Ocean. This region supports diverse aquatic life and provides water for local communities. Proper treatment helps prevent eutrophication and maintains ecological balance in the downstream river system.