ETE Catuti - Secondary Wastewater Treatment Plant in Catuti, Minas Gerais

ETE Catuti is a wastewater treatment facility located in Catuti, a municipality in the northern region of Minas Gerais, Brazil. The plant serves a small population of around 905 people, reflecting the rural character of the area. It is situated in the Sudeste region, within the immediate geographic region of Espinosa. The plant provides secondary treatment, which is the standard biological treatment process that removes organic matter and suspended solids. For small agglomerations in Brazil, secondary treatment is typical and aligns with national regulations such as CONAMA Resolution 430/2011, which sets effluent discharge standards. The plant treats an average daily flow of 51.84 cubic meters, indicating a modest scale consistent with the population served. The treated effluent from ETE Catuti is discharged into local water bodies that ultimately drain into the São Francisco River basin, one of Brazil's most important river systems. The São Francisco River flows northward through the semi-arid Sertão region and empties into the Atlantic Ocean. The plant plays a crucial role in protecting downstream water quality and supporting aquatic ecosystems in this ecologically sensitive area.

The treated effluent from ETE Catuti enters local streams that are part of the São Francisco River basin. The São Francisco River is a major watercourse in eastern Brazil, flowing over 2,800 kilometers to the Atlantic Ocean. The downstream environment includes the semi-arid Caatinga biome, where water resources are scarce and aquatic ecosystems are highly dependent on consistent water quality. The plant's secondary treatment helps reduce organic pollution, safeguarding biodiversity and supporting human uses such as irrigation and drinking water supply in the region.