Overview
ETE CETREL is a secondary wastewater treatment plant in Camaçari, Bahia, Brazil, serving approximately 45,902 people. It discharges treated effluent near the coast, supporting local water quality in the Salvador metropolitan region.
ETE CETREL is a municipal wastewater treatment plant located in Camaçari, Bahia, within the Salvador metropolitan region of northeastern Brazil. The facility serves a population of approximately 45,902, placing it in the medium-agglomeration category for Brazilian sanitation infrastructure. Its location in the industrial hub of Camaçari underscores its role in managing both domestic and potentially industrial wastewater flows. The plant operates with secondary treatment, which is the standard required under Brazilian regulations (CONAMA resolutions) for inland and coastal discharges. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The plant's scale and treatment level align with national norms for communities of this size, ensuring compliance with federal water quality standards. The treated effluent is discharged into the local watershed, which drains into the Atlantic Ocean via the coastal ecosystems of Bahia. The plant's proximity to the coast (within 10 km) means its discharge can influence nearshore water quality and marine habitats. By providing secondary treatment, ETE CETREL helps protect downstream environments, including mangroves and estuaries that are ecologically sensitive and support diverse aquatic life.
Environmental context
The plant discharges treated wastewater into the coastal watershed of Bahia, which ultimately flows into the Atlantic Ocean. The receiving environment includes estuarine and mangrove ecosystems that serve as critical nursery habitats for fish and crustaceans. These coastal waters support artisanal fisheries and tourism, making effective treatment essential for maintaining water quality and ecological balance.
Frequently asked questions
ETE CETREL is located in Camaçari, Bahia, Brazil, in the Salvador metropolitan region. Its address is Avenida Manoel Almeida, Vila Senhor dos Passos, Abrantes, Camaçari.
The plant serves approximately 45,902 people, classifying it as a medium-sized agglomeration under Brazilian wastewater management standards.
The plant provides secondary treatment before discharging effluent into the local watershed, which drains into the Atlantic Ocean. Its coastal location means treated water enters nearshore marine environments.
The plant operates under Brazilian environmental regulations, including CONAMA Resolution 430/2011, which sets effluent quality standards for wastewater discharges. Secondary treatment is the minimum required for plants of this scale.
For medium-sized agglomerations in Brazil, secondary treatment is standard. This typically involves biological processes such as activated sludge or aerated lagoons to reduce organic load and suspended solids before discharge.
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