ETE Madre de Deus - Secondary Wastewater Treatment Plant in Madre de Deus, Bahia

ETE Madre de Deus is a municipal wastewater treatment plant located in Madre de Deus, a coastal city in Bahia, Brazil, within the Metropolitan Region of Salvador. The plant serves a population of approximately 17,257 residents, classifying it as a medium-sized agglomeration under Brazilian wastewater management standards. The plant provides secondary treatment, which is the standard level required by Brazilian regulations (CONAMA Resolution 430/2011) for inland and coastal discharges. The plant discharges 223.39 m³/day of treated effluent. As a coastal facility within 10 km of the Atlantic Ocean, it operates under stringent environmental controls to protect marine water quality. The treated effluent is discharged into Todos os Santos Bay, a large tropical bay that supports diverse aquatic life, including mangroves, coral reefs, and important fisheries. The bay ultimately drains into the Atlantic Ocean. The plant plays a key role in preserving the ecological health of this sensitive coastal ecosystem.

The plant discharges into Todos os Santos Bay, one of Brazil's largest and most ecologically significant bays, which supports mangroves, seagrass beds, and coral reefs. The bay drains into the Atlantic Ocean. The coastal location requires careful management to prevent nutrient enrichment and protect marine biodiversity, including species of commercial and conservation importance.