Overview
ETE Aruana Goiânia is a municipal wastewater treatment plant serving approximately 34,864 people in Goiânia, Goiás, Brazil. It operates under Brazil's national water quality regulations.
ETE Aruana Goiânia is a municipal wastewater treatment facility located in the Colônia Santa Marta neighborhood of Goiânia, the capital of Goiás state in central Brazil. The plant serves a population of around 34,864 residents, placing it in the medium-agglomeration category for Brazilian sanitation infrastructure. Brazil's wastewater treatment standards are governed by CONAMA Resolution 430/2011 and the National Water Resources Policy (Law 9.433/1997), which set discharge limits for organic matter, nutrients, and pathogens. For agglomerations of this size, secondary treatment is typically required to meet biochemical oxygen demand (BOD) and total suspended solids (TSS) standards. The regulatory framework ensures compliance with environmental quality objectives. The plant discharges treated effluent into local water bodies that drain into the Meia Ponte River, a tributary of the Paranaíba River, which flows into the Paraná River basin and ultimately reaches the Río de la Plata estuary. This downstream connection highlights the plant's role in protecting water quality in a major South American watershed.
Environmental context
The plant's treated effluent enters the Meia Ponte River, which flows through the Cerrado savanna biome before joining the Paranaíba River. The Paranaíba is a major tributary of the Paraná River, which drains into the Río de la Plata estuary. The Cerrado region supports diverse aquatic life, including migratory fish species, and the river system provides water for agriculture and urban use downstream. Proper treatment helps prevent eutrophication and maintains ecological balance in this sensitive tropical watershed.
Frequently asked questions
ETE Aruana Goiânia is located at Rua 2, Colônia Santa Marta, in Goiânia, the capital of Goiás state in central Brazil.
The plant serves approximately 34,864 residents, classifying it as a medium-sized agglomeration under Brazilian wastewater standards.
Treated effluent from the plant is discharged into local water bodies that flow into the Meia Ponte River, a tributary of the Paranaíba River in the Paraná River basin.
The plant operates under Brazil's CONAMA Resolution 430/2011, which sets effluent quality standards, and the National Water Resources Policy (Law 9.433/1997), which governs water use and pollution control.
For agglomerations of this size, Brazilian regulations typically require secondary treatment to reduce BOD and TSS, often using activated sludge or stabilization pond systems, depending on local conditions.
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