ETE IARAS Wastewater Treatment Plant, Iaras, São Paulo, Brazil

ETE IARAS is a municipal wastewater treatment facility located in Iaras, a city in the state of São Paulo, Brazil. The plant serves a population of about 2,392 residents, classifying it as a small-scale treatment facility within the region. The plant provides secondary treatment, which is the standard biological treatment process required for most municipal wastewater in Brazil. This level of treatment significantly reduces organic matter and suspended solids before discharge. The plant handles an average daily flow of 332.22 cubic meters, reflecting the modest scale of the community it serves. Treated effluent from ETE IARAS is discharged into local water bodies within the Paraná River basin, which ultimately drains into the Río de la Plata estuary. The plant plays a vital role in protecting downstream water quality and supporting the ecological health of the region's freshwater systems.

ETE IARAS discharges treated wastewater into local streams that are part of the Paraná River basin, one of South America's largest river systems. The Paraná River flows through Brazil, Paraguay, and Argentina before emptying into the Río de la Plata. The plant's secondary treatment helps reduce nutrient loading and organic pollution, supporting aquatic life in the downstream rivers and contributing to the overall health of the basin's diverse freshwater ecosystems.