ETE Parque Atheneu Wastewater Treatment Plant, Goiânia, Goiás, Brazil

ETE Parque Atheneu is a wastewater treatment facility located in Goiânia, the capital of Goiás state in Brazil's Central-West region. The plant serves a population of around 85,000 residents, contributing to the city's sanitation infrastructure. Goiânia is a major urban center with a population exceeding 1.5 million, and this plant plays a role in managing the city's wastewater. As a Brazilian wastewater treatment plant, ETE Parque Atheneu operates under the national regulatory framework established by the Ministry of Cities and environmental agencies such as the Instituto Brasileiro do Meio Ambiente e dos Recursos Naturais Renováveis (IBAMA) and state-level bodies. For agglomerations of this scale, secondary treatment is typically required to meet discharge standards. It is expected to comply with Brazilian Resolution CONAMA 430/2011, which sets effluent quality standards for wastewater discharges. The treated effluent from the plant is discharged into local water bodies that eventually drain into the Paraná River basin, one of South America's major river systems. The region's watershed supports diverse aquatic life and is important for water supply and agriculture downstream. Proper treatment at this plant helps protect water quality in the receiving streams and contributes to the ecological health of the broader basin.

The plant discharges into local tributaries of the Paraná River basin, which flows through central Brazil and eventually into the Río de la Plata estuary. The watershed supports diverse aquatic ecosystems, including fish species and riparian vegetation. Effective wastewater treatment is critical to prevent nutrient enrichment and contamination that could affect downstream water quality and biodiversity.