ETE Pracinha Wastewater Treatment Plant - Pracinha, São Paulo, Brazil

ETE Pracinha is a municipal wastewater treatment plant located in Pracinha, a small town in the state of São Paulo, Brazil. The plant serves a population of approximately 1,450 residents, reflecting its role in managing domestic wastewater for this rural community. Situated in the southeastern region of Brazil, the facility is part of the broader sanitation infrastructure supporting the Região Imediata de Adamantina-Lucélia. The plant employs secondary treatment, a standard biological process that removes organic matter and suspended solids. Secondary treatment is the minimum required under Brazilian regulations (CONAMA 430/2011) for wastewater discharge into freshwater bodies. The plant's discharge volume is 167.53 m³/day, indicating a scale consistent with its small population served. Treated effluent from ETE Pracinha is discharged into local watercourses that eventually drain into the Paraná River basin, one of South America's major river systems. This basin supports diverse aquatic ecosystems and is critical for water supply and agriculture in the region. Proper treatment helps protect downstream water quality and ecological health.

The plant's discharge enters small streams that flow into the Aguapeí River, a tributary of the Paraná River. The Paraná River basin is ecologically significant, hosting diverse fish species and wetlands. Secondary treatment reduces organic pollution, safeguarding aquatic life and supporting water quality for downstream communities.