Overview
ETE Atuba Sul is a major wastewater treatment plant serving Curitiba, Paraná, Brazil. It treats wastewater from approximately 491,000 residents, supporting the city's sanitation infrastructure.
ETE Atuba Sul is a large wastewater treatment plant located in Curitiba, the capital of Paraná state in southern Brazil. Serving a population of around 491,000 people, it is a key component of the region's sanitation system, handling a significant portion of the city's domestic sewage. As a large agglomeration, the plant is expected to meet Brazilian regulatory standards for wastewater treatment, which typically require secondary treatment or higher for such population sizes. The plant's design and operation align with national environmental policies aimed at reducing pollution loads to receiving water bodies. The treated effluent from ETE Atuba Sul is discharged into local watercourses that eventually drain into the Iguaçu River basin, a major river system in Paraná. This river flows through the Atlantic Forest biome and ultimately reaches the Paraná River, supporting diverse aquatic ecosystems and downstream water uses.
Environmental context
The plant discharges into tributaries of the Iguaçu River, which flows through the Atlantic Forest region, a biodiversity hotspot. The river system supports a variety of fish species and provides water for communities downstream. Effective treatment at ETE Atuba Sul helps protect water quality in the Iguaçu basin and reduces nutrient loading to the Paraná River and eventually the Río de la Plata estuary.
Frequently asked questions
ETE Atuba Sul is located in Curitiba, the capital of Paraná state in southern Brazil. Its address is Rua Desembargador Henrique Chesneau Lenz César, in the Cajuru district.
The plant serves approximately 491,098 people, making it a large-scale municipal wastewater treatment facility for the Curitiba metropolitan region.
The treated effluent is discharged into local watercourses that are part of the Iguaçu River basin, which flows through the Atlantic Forest and eventually reaches the Paraná River.
The plant operates under Brazilian federal environmental regulations, including CONAMA resolutions, which set discharge standards for wastewater treatment plants. For a plant of this scale, secondary treatment is typically required.
In Brazil, large wastewater treatment plants serving populations over 100,000 usually employ secondary treatment processes, such as activated sludge or aerated lagoons, to meet national effluent quality standards.
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