ETE Sobradinho Wastewater Treatment Plant, Sobradinho, Distrito Federal, Brazil

ETE Sobradinho is a wastewater treatment plant located in Sobradinho, Distrito Federal, Brazil. The facility serves an estimated population of 59,700 people, making it a medium-sized agglomeration within the region's sanitation infrastructure. The plant is situated in the Setor de Indústria e Abastecimento area, reflecting its role in supporting both residential and industrial wastewater management. As a Brazilian wastewater treatment facility, ETE Sobradinho operates under the national regulatory framework established by the Ministry of Cities and the National Water Agency (ANA). For agglomerations of this scale, Brazilian regulations typically require secondary treatment to meet effluent quality standards. The facility is expected to comply with CONAMA Resolution 430/2011, which sets discharge standards for wastewater treatment plants across the country. The treated effluent from ETE Sobradinho 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 crucial role in protecting the water quality of the region's streams and rivers, which support diverse aquatic life and are used for water supply, recreation, and agriculture downstream. The surrounding Cerrado biome adds ecological significance, as the area's watersheds are vital for maintaining biodiversity and hydrological balance.

ETE Sobradinho discharges into local tributaries of the Paraná River basin, which flows through southeastern Brazil and into the Río de la Plata estuary. The plant's operations help protect the water quality of these water bodies, which support diverse aquatic ecosystems in the Cerrado biome. The region's watersheds are important for maintaining hydrological balance and providing habitat for native species, including fish and migratory birds.