Overview
ETE Dirce Reis is a secondary-level wastewater treatment plant serving 1,219 people in Dirce Reis, São Paulo, Brazil. It discharges approximately 186.89 thousand cubic meters of treated effluent annually.
ETE Dirce Reis is a municipal wastewater treatment facility located in Dirce Reis, a small city in the state of São Paulo, Brazil. The plant serves a population of 1,219 residents, reflecting its role in a small agglomeration within the Região Imediata de Jales. As a secondary treatment plant, it provides biological treatment to reduce organic matter and suspended solids before discharge. In Brazil, wastewater treatment plants of this scale are typically regulated under federal environmental standards (CONAMA resolutions) and state-level permits issued by CETESB in São Paulo. Secondary treatment is the minimum required for most inland discharges, aligning with the plant's reported treatment level. The plant's discharge volume of 186.89 thousand cubic meters per year indicates a modest flow consistent with its small service population. The treated effluent from ETE Dirce Reis is discharged into local watercourses that drain into the Paraná River basin, one of South America's major river systems. The plant's location more than 10 km from the coast but within 50 km suggests it contributes to inland water quality, protecting downstream aquatic ecosystems and supporting regional water resources.
Environmental context
The plant's discharge enters the Paraná River basin, which flows into the Río de la Plata estuary. This watershed supports diverse aquatic life and is important for regional agriculture and water supply. The secondary treatment provided helps reduce nutrient and organic loads, mitigating eutrophication risks in downstream water bodies. The plant's inland location means its effluent ultimately influences the ecological health of the Paraná River system.
Frequently asked questions
ETE Dirce Reis is located in the city of Dirce Reis, in the state of São Paulo, Brazil. It serves the local population of approximately 1,219 residents.
The plant provides secondary treatment, which involves biological processes to remove organic matter and suspended solids from wastewater before discharge.
The treated effluent is discharged into local watercourses that are part of the Paraná River basin, ultimately flowing into the Río de la Plata estuary.
In Brazil, wastewater treatment plants are regulated by federal CONAMA resolutions and state-level permits. In São Paulo, CETESB is the environmental agency responsible for permitting and compliance.
For small agglomerations in Brazil, secondary treatment is standard and sufficient to meet discharge standards for inland waters, protecting downstream ecosystems and public health.
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