ETE FOSSA FILTRO 2 - Secondary Wastewater Treatment Plant in Itapetinga, Bahia

ETE FOSSA FILTRO 2 is a municipal wastewater treatment facility located in the Residencial Vale do Ipé area of Itapetinga, Bahia, Brazil. The plant serves a population of 1,247 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 treatment process required under Brazilian regulations (CONAMA Resolution 430/2011) for most inland wastewater discharges. Secondary treatment typically involves biological degradation of organic matter followed by sedimentation, ensuring effluent quality that meets basic environmental standards before release. The treated effluent is discharged into local water bodies within the Pardo River basin, which flows through Bahia's interior region. This watershed supports agricultural activities and local ecosystems, making proper wastewater treatment essential for maintaining water quality and public health in the surrounding communities.

The plant discharges into the Pardo River basin, which drains into the Atlantic Ocean via the Pardo River. This watershed supports diverse aquatic life and is used for irrigation and domestic water supply downstream. Proper secondary treatment helps protect these water resources from organic pollution and nutrient loading.