ETE Walter Barauna Salvador - Secondary Wastewater Treatment Plant in Salvador, Bahia

ETE Walter Barauna Salvador is a wastewater treatment plant located in the Vila Jardim Nova Esperança neighborhood of Salvador, the capital of Bahia state in northeastern Brazil. The plant serves a small population of 231 people and operates at a secondary treatment level, which is typical for smaller communities in the region. As a secondary treatment facility, the plant uses biological processes to remove organic matter and suspended solids, meeting the basic standards required by Brazilian environmental regulations (CONAMA resolutions). The plant is situated within 10 km of the Atlantic coast, making its discharge potentially influential on coastal water quality. Salvador's coastline includes important bays and estuaries that support diverse marine life. The treated effluent likely flows into local drainage systems that eventually reach the Baía de Todos os Santos, a large tropical bay known for its mangroves and coral reefs.

The plant's treated effluent ultimately drains into the Baía de Todos os Santos, one of Brazil's largest and most ecologically significant bays. This bay supports extensive mangrove forests, seagrass beds, and coral reefs that provide critical habitat for fish, crustaceans, and migratory birds. The proximity to the coast (within 10 km) means that nutrient and pollutant loads from the plant can directly affect nearshore marine ecosystems, making proper treatment essential for preserving water quality and biodiversity in this sensitive coastal environment.