ETE ALTO DO CAJI - Secondary Wastewater Treatment in Lauro de Freitas, Bahia

ETE ALTO DO CAJI is a wastewater treatment plant located in Lauro de Freitas, a city in the metropolitan region of Salvador, Bahia, Brazil. The plant serves a population of 6,730 and operates with secondary treatment, which is typical for smaller agglomerations in the region. Its location near the coast places it within a sensitive coastal environment. The plant provides secondary treatment, a standard level for municipal wastewater in Brazil under the National Environment Council (CONAMA) resolutions. The plant's discharge volume of 77.35 units indicates ongoing operation. Brazilian regulations require adequate treatment to protect water quality, especially in coastal areas. The treated effluent from ETE ALTO DO CAJI is discharged into the local watershed, which ultimately drains into the Atlantic Ocean near the Baía de Todos os Santos. This bay is an ecologically important estuary supporting mangroves, fish, and migratory birds. The plant's operation helps reduce pollution loads in this coastal ecosystem.

The plant discharges into the Baía de Todos os Santos watershed, a large tropical bay on Brazil's northeast coast. This bay supports diverse aquatic life, including mangroves and coral reefs, and is a critical habitat for marine species. The secondary treatment provided by the plant helps mitigate nutrient and pathogen loads, protecting the bay's ecological health and supporting local fisheries and tourism.