Overview
ETE CACHOEIRA ARAUCARIA is a municipal wastewater treatment plant serving Araucária, Paraná, Brazil. It treats wastewater from approximately 32,438 people in the Curitiba metropolitan region.
ETE CACHOEIRA ARAUCARIA is a wastewater treatment facility located in Araucária, within the Curitiba metropolitan area in the state of Paraná, Brazil. The plant serves a population of around 32,438 residents, placing it in the medium-agglomeration category for Brazilian sanitation infrastructure. It operates under Brazil's national environmental regulations, which require appropriate treatment for municipal wastewater to protect water resources. However, under Brazilian regulations (CONAMA resolutions and state-level environmental laws), plants of this scale typically employ secondary treatment or better to meet effluent standards for discharge into receiving waters. The regulatory framework ensures that treated wastewater meets quality criteria before release. The treated effluent from ETE CACHOEIRA ARAUCARIA ultimately discharges into the Iguaçu River basin, which flows through Paraná and into the Paraná River, one of South America's major waterways. The plant plays a key role in protecting local water quality and downstream ecosystems, including the Iguaçu River and its tributaries, which support diverse aquatic life and are important for regional water supply.
Environmental context
The plant discharges into the Iguaçu River basin, part of the larger Paraná River system that drains into the Río de la Plata estuary. The Iguaçu River is ecologically significant, supporting diverse fish species and riparian habitats. Downstream, the Paraná River sustains extensive wetlands and floodplains that are critical for biodiversity, including migratory birds and aquatic fauna. Protecting water quality in this basin is essential for maintaining these ecosystems and the human communities that depend on them.
Frequently asked questions
ETE CACHOEIRA ARAUCARIA is located in Araucária, a city in the state of Paraná, Brazil, within the Curitiba metropolitan region.
The plant serves approximately 32,438 people, making it a medium-sized municipal wastewater treatment facility.
The treated effluent is discharged into the Iguaçu River basin, which flows into the Paraná River and eventually reaches the Río de la Plata estuary.
The plant operates under Brazilian environmental regulations, including CONAMA resolutions and state-level permits from Paraná's environmental agency, which set effluent quality standards for wastewater treatment plants.
For a medium-sized agglomeration in Brazil, secondary treatment is typically required to meet discharge standards, often using activated sludge or similar biological processes to reduce organic matter and nutrients.
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