ETE IBIRAREMA Wastewater Treatment Plant, Palmital, São Paulo, Brazil

ETE IBIRAREMA is a wastewater treatment plant located in Palmital, within the state of São Paulo, Brazil. The facility serves a population of approximately 6,150 residents, classifying it as a small-scale municipal treatment plant in the interior of São Paulo state. As a Brazilian wastewater treatment plant, ETE IBIRAREMA operates under the national regulatory framework established by the National Environment Council (CONAMA) and the National Water Agency (ANA). For plants serving populations under 10,000, Brazilian regulations typically require at least secondary treatment to meet effluent standards for organic matter and suspended solids. The plant discharges treated effluent into local water bodies within the Paranapanema River basin, which flows into the Paraná River and eventually reaches the Río de la Plata estuary. The surrounding region is primarily agricultural, with sugarcane and grain farming, making proper wastewater treatment essential for protecting downstream water quality and aquatic ecosystems.

The plant's treated effluent enters local streams within the Paranapanema River basin, a major tributary of the Paraná River. The Paraná River flows southward through Brazil, Paraguay, and Argentina, ultimately discharging into the Río de la Plata estuary. This watershed supports diverse aquatic life and provides water for agriculture and human consumption. Proper treatment is critical to prevent nutrient pollution and protect downstream ecosystems.