ETE VILA SERENA Wastewater Treatment Plant, Simões Filho, Bahia

ETE VILA SERENA is a wastewater treatment plant located in Simões Filho, within the Metropolitan Region of Salvador, Bahia, Brazil. The plant serves a small population of 889 residents, reflecting its role in a smaller community within this densely populated urban region. The plant provides secondary treatment, which is the standard biological treatment required under Brazilian regulations for municipal wastewater. With a discharge volume of 11.47 m³/day, the facility operates at a scale appropriate for its service area. Brazilian environmental legislation, including CONAMA resolutions, sets effluent standards for such plants to protect water quality. The treated effluent is discharged into local water bodies that ultimately drain into the Atlantic Ocean, given the plant's proximity to the coast. The region's coastal ecosystems, including mangroves and estuaries, are sensitive to nutrient inputs, making proper treatment essential for preserving marine biodiversity and water quality in the Baía de Todos os Santos area.

The plant is situated near the coast of Bahia, within the drainage basin that flows into the Baía de Todos os Santos, a large tropical bay connected to the Atlantic Ocean. This bay supports diverse marine life, including coral reefs and mangroves, which are sensitive to pollution. The secondary treatment provided by ETE VILA SERENA helps reduce organic load and nutrients, mitigating eutrophication risks in these ecologically important coastal waters.