ETE MATA DE SAO JOAO - Secondary Wastewater Treatment Plant in Mata de São João, Bahia

ETE MATA DE SAO JOAO is a municipal wastewater treatment plant located in Mata de São João, a city in the state of Bahia, Brazil. The plant serves a population of about 4,691 residents and operates under Brazil's national environmental regulations, which set standards for wastewater treatment and discharge. The plant provides secondary treatment, a level that typically involves biological processes to remove organic matter and suspended solids. The plant's discharge volume of 141.78 units indicates its operational scale. As a facility in a developing region, it contributes to local sanitation infrastructure. The treated effluent is discharged into the local watershed, which ultimately drains into the Atlantic Ocean via the coastal drainage systems of northeastern Brazil. The region's tropical climate and proximity to the coast make proper treatment essential for protecting downstream ecosystems, including mangroves and coastal waters that support diverse aquatic life.

The plant discharges into the local watershed that flows toward the Atlantic Ocean, part of the coastal drainage of Bahia. The downstream environment includes sensitive coastal ecosystems such as mangroves and estuaries, which provide critical habitat for fish and migratory birds. Proper treatment helps prevent nutrient pollution and protects water quality in these ecologically important areas.