Overview
ETE Santa Clara d'Oeste is a secondary treatment plant serving 1,613 people in Santa Clara d'Oeste, São Paulo, Brazil. It discharges 242.62 m³/day of treated wastewater near the coast.
ETE Santa Clara d'Oeste is a municipal wastewater treatment plant located in Santa Clara d'Oeste, a small town in the state of São Paulo, Brazil. The plant serves a population of approximately 1,613 residents, reflecting its role in a small agglomeration within the interior of the state. The plant provides secondary treatment, which is the standard biological treatment required under Brazilian regulations (CONAMA resolutions) for most municipal wastewater. The plant's discharge volume of 242.62 m³/day indicates a scale consistent with its small service population. Brazilian environmental law mandates that treated effluent meet quality standards before discharge. The plant's treated effluent is discharged into local water bodies that ultimately drain into the Paraná River basin, one of the most important river systems in South America. The downstream environment supports diverse aquatic life and is used for agriculture and water supply.
Environmental context
The plant discharges into the Paraná River basin, which flows through southeastern Brazil and eventually reaches the Río de la Plata estuary. This watershed supports rich biodiversity, including fish species and migratory birds. The plant's location within 10 km of the coast means its effluent can affect nearshore marine environments, making proper treatment essential to prevent nutrient loading and protect coastal ecosystems.
Frequently asked questions
ETE Santa Clara d'Oeste is located in the municipality of Santa Clara d'Oeste, in the state of São Paulo, Brazil. It serves the local population with municipal wastewater treatment.
The plant has a reported discharge volume of 242.62 m³/day, serving a population of 1,613. The plant's secondary treatment process meets Brazilian standards for small agglomerations.
The plant discharges treated effluent into the local water network within the Paraná River basin. The plant is within 10 km of the coast, so discharge may eventually reach coastal waters.
The plant operates under Brazilian environmental regulations, including CONAMA Resolution 430/2011, which sets effluent discharge standards. As a secondary treatment plant, it must meet biological oxygen demand and suspended solids limits before discharge.
For small agglomerations of around 1,600 people in Brazil, secondary treatment is typical and sufficient to meet national standards. This involves biological processes to reduce organic matter and nutrients, protecting downstream water quality.
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