ETE Itaqui Campo Largo - Secondary Wastewater Treatment Plant in Campo Largo, Paraná

ETE Itaqui Campo Largo is a municipal wastewater treatment plant located in the Itaboa district of Campo Largo, within the metropolitan region of Curitiba, Paraná, Brazil. The plant serves a population of 5,310, classifying it as a small-scale facility under Brazilian sanitation standards. The plant provides secondary treatment, which is the minimum standard required by Brazilian regulations (CONAMA 430/2011) for most inland water bodies. The plant operates under Brazil's national environmental licensing framework, overseen by the state environmental agency (IAP/Instituto Água e Terra do Paraná). Treated effluent from the plant is discharged into local watercourses that drain into the Iguaçu River basin, a major river system in southern Brazil. The Iguaçu River flows westward to the Iguaçu Falls and eventually joins the Paraná River, which empties into the Río de la Plata estuary. The plant plays a key role in protecting downstream water quality in this ecologically diverse region.

The plant discharges into tributaries of the Iguaçu River, which flows through the Atlantic Forest biome, a biodiversity hotspot. The Iguaçu River supports diverse aquatic life and is important for regional water supply. Downstream, the river feeds the Iguaçu Falls and joins the Paraná River, ultimately reaching the Río de la Plata. Protecting water quality in this basin is critical for maintaining ecological integrity and human uses.