ETE Jaguariaíva Wastewater Treatment Plant, Jaguariaíva, Paraná, Brazil

ETE Jaguariaíva is a municipal wastewater treatment plant located in Jaguariaíva, a city in the state of Paraná, Brazil. The plant serves an estimated population of 23,458 residents, placing it in the medium-sized agglomeration category for Brazilian wastewater infrastructure. In Brazil, wastewater treatment plants are regulated under federal environmental laws, including CONAMA resolutions and state-level environmental agencies. For plants serving populations of this scale, secondary treatment is typically required to reduce organic load and suspended solids before discharge. It operates within the regulatory framework of Paraná's environmental agency. The treated effluent from ETE Jaguariaíva is discharged into local water bodies that ultimately drain into the Paraná River basin, one of South America's major river systems. The Paraná River flows southward, forming part of the La Plata Basin, and eventually reaches the Río de la Plata estuary. The plant plays a key role in protecting downstream water quality and aquatic ecosystems in this ecologically significant watershed.

The plant discharges into the Paraná River basin, which drains into the La Plata Basin and ultimately the Río de la Plata estuary. This watershed supports diverse aquatic life and is important for regional biodiversity. The plant's operations help mitigate nutrient and organic pollution, safeguarding downstream water quality in this ecologically sensitive river system.