ETE Anhumas Piracicaba - Secondary Wastewater Treatment Plant in Piracicaba, São Paulo

ETE Anhumas Piracicaba is a wastewater treatment plant located in the Anhumas district of Piracicaba, within the state of São Paulo, Brazil. The plant serves a small population of 774 residents and operates with secondary treatment, which is the standard biological process for removing organic matter and suspended solids. As a secondary treatment facility, ETE Anhumas Piracicaba meets the basic requirements for municipal wastewater treatment in Brazil, where the National Environment Council (CONAMA) sets discharge standards. For small agglomerations like this, secondary treatment is typically sufficient to protect local water quality, though advanced nutrient removal may not be required. The plant discharges treated effluent into local water bodies that drain into the Piracicaba River, a key tributary of the Tietê River basin. The Tietê River flows through São Paulo state and eventually reaches the Paraná River system, which empties into the Río de la Plata estuary. The surrounding region is ecologically significant, supporting diverse aquatic life and providing water for agriculture and urban use.

The treated effluent from ETE Anhumas Piracicaba enters local streams that feed into the Piracicaba River, a major tributary of the Tietê River basin. The Tietê River flows westward across São Paulo state, joining the Paraná River, which ultimately drains into the Río de la Plata estuary. This watershed supports diverse freshwater ecosystems and is important for regional water supply, agriculture, and recreation. The plant's secondary treatment helps reduce organic pollution, protecting downstream aquatic habitats.