ETE Teotonio Brandao Vilela - Secondary Wastewater Treatment Plant in Satuba, Alagoas, Brazil

ETE Teotonio Brandao Vilela is a municipal wastewater treatment plant located in Satuba, within the Alagoas state of Brazil's Northeast Region. The plant serves a small population of 1,684 residents, reflecting its role in a smaller community near Maceio. The plant provides secondary treatment, which is the standard biological process for removing organic matter and suspended solids. Under Brazil's national environmental regulations (CONAMA resolutions), secondary treatment is typically required for inland and coastal discharges to protect water quality. The plant's discharge volume is 124.35 m³/day, indicating a modest operational scale. The treated effluent is discharged into the local watershed, which ultimately drains into the Atlantic Ocean via the coastal lagoons and estuaries near Maceio. The region's aquatic ecosystems include mangroves and coastal habitats that support diverse marine life. Proper treatment at this plant helps reduce nutrient and pollutant loads entering sensitive coastal waters.

The plant discharges into the coastal watershed of Alagoas, which flows into the Atlantic Ocean through the Mundaú-Manguaba lagoon complex. This estuarine system supports mangroves, fish nurseries, and migratory bird species. The region's tropical climate and proximity to the coast make the receiving waters ecologically sensitive to nutrient enrichment and organic pollution.