Overview
ETE COHAB CASA NOVA is a secondary wastewater treatment plant in Casa Nova, Bahia, Brazil, serving approximately 3,953 people. It discharges treated effluent near the coast, supporting local sanitation infrastructure.
ETE COHAB CASA NOVA is a municipal wastewater treatment facility located in Casa Nova, a city in the state of Bahia, Brazil. The plant serves a population of around 3,953 residents, providing secondary treatment to domestic wastewater. It is situated in the northeastern region of Brazil, an area characterized by semi-arid climate and proximity to the São Francisco River basin. The plant operates with secondary treatment, which is the standard biological process for removing organic matter and suspended solids. Under Brazilian regulations (CONAMA resolutions and the National Sanitation Plan), secondary treatment is typically required for urban agglomerations of this size. The treated effluent is discharged into the local environment within 10 km of the Atlantic coast, making it a coastal discharge plant. The receiving water body is likely a tributary of the São Francisco River, which flows into the Atlantic Ocean. This region supports diverse aquatic life and is important for local fisheries and agriculture. Proper treatment helps protect downstream water quality and ecosystem health.
Environmental context
The plant discharges treated wastewater into a watercourse that ultimately drains into the São Francisco River, one of Brazil's major rivers, which flows into the Atlantic Ocean. The downstream environment includes semi-arid ecosystems and coastal zones that support diverse aquatic species and migratory birds. Effective secondary treatment is crucial to prevent nutrient enrichment and protect the ecological balance of the receiving waters.
Frequently asked questions
ETE COHAB CASA NOVA is located in Casa Nova, a city in the state of Bahia, in northeastern Brazil. It lies within the Região Geográfica Imediata de Juazeiro, near the São Francisco River.
The plant serves approximately 3,953 residents, making it a small-scale municipal wastewater treatment facility.
The plant discharges treated effluent into a local watercourse that flows into the São Francisco River, which ultimately reaches the Atlantic Ocean. The discharge is within 10 km of the coast.
The plant provides secondary treatment, which involves biological processes to remove organic matter and suspended solids. This is the standard level required for urban wastewater in Brazil under CONAMA Resolution 430/2011.
In Brazil, wastewater treatment is regulated by CONAMA resolutions and the National Sanitation Plan (Plansab). Secondary treatment is typically required for agglomerations of this size, with effluent standards for BOD, COD, and other parameters. Discharge permits are issued by state environmental agencies.
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