ETE Sao Jorge do Ivai - Secondary Wastewater Treatment Plant in Sao Jorge do Ivai, Parana

ETE Sao Jorge do Ivai is a municipal wastewater treatment plant located in Sao Jorge do Ivai, a city in the state of Parana, Brazil. The plant serves a population of about 4,865 residents, classifying it as a small-scale facility within the region's sanitation infrastructure. The plant provides secondary treatment, which is the standard biological treatment process for removing organic matter and suspended solids. Under Brazil's national environmental regulations, including CONAMA resolutions, secondary treatment is typically required for urban wastewater to protect water quality. The treated effluent is discharged into local water bodies that ultimately drain into the Ivai River basin, part of the Parana River system. This river network flows into the Parana River, which is a major tributary of the Rio de la Plata estuary. The plant plays a key role in protecting downstream aquatic ecosystems and maintaining water quality for communities along the Ivai River.

The plant discharges into the Ivai River basin, which flows into the Parana River and eventually reaches the Rio de la Plata estuary. This watershed supports diverse aquatic life and provides water for agriculture and human consumption. The region's subtropical climate and agricultural land use make proper wastewater treatment essential to prevent nutrient pollution and protect downstream ecosystems.