Overview
ETE Castelo Branco III is a secondary treatment plant serving 899 people in Salvador, Bahia, Brazil. It discharges treated wastewater near the coast, supporting local sanitation infrastructure.
ETE Castelo Branco III is a wastewater treatment plant located in the Vila Alto de Castelo Branco neighborhood of Salvador, the capital of Bahia state in northeastern Brazil. The plant serves a small population of 899 residents, contributing to the region's sanitation network within the metropolitan area of Salvador. The plant provides secondary treatment, which is the standard biological process for removing organic matter and suspended solids. As a facility serving fewer than 10,000 people, it aligns with Brazil's national sanitation regulations that require appropriate treatment for small agglomerations. The plant discharges a daily volume of 97.19 cubic meters of treated effluent. The treated wastewater from ETE Castelo Branco III ultimately reaches the Atlantic Ocean, as the plant is located within 10 kilometers of the coast. Salvador's coastal waters support diverse marine life and are important for local fisheries and tourism. The plant's operation helps protect the nearshore environment from untreated sewage discharges.
Environmental context
The plant discharges into the coastal watershed of Salvador, which drains into Todos os Santos Bay and then the Atlantic Ocean. This bay is a large estuarine system that supports mangroves, seagrass beds, and diverse aquatic species. The plant's secondary treatment reduces organic pollution, helping to maintain water quality in this ecologically sensitive coastal area.
Frequently asked questions
ETE Castelo Branco III is located in the Vila Alto de Castelo Branco neighborhood of Salvador, Bahia, Brazil. The address is Rua Três Virtudes, in the metropolitan region of Salvador.
The plant serves a population of 899 people, making it a small-scale facility focused on local wastewater treatment in the Salvador area.
The plant discharges treated wastewater into the local drainage system that flows toward the Atlantic coast. As it is within 10 km of the coast, the effluent ultimately reaches the ocean.
The plant provides secondary treatment, which involves biological processes to remove organic matter and suspended solids. This is the standard level required for small communities under Brazilian regulations.
Brazil's national sanitation framework, including Law 11.445/2007 and CONAMA resolutions, mandates treatment for all urban wastewater. Plants serving small populations like this one typically require secondary treatment to protect water quality in receiving water bodies.
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