ETE ARUANA GO - Secondary Wastewater Treatment Plant in Aruanã, Goiás, Brazil

ETE ARUANA GO is a municipal wastewater treatment facility located in Aruanã, a city in the state of Goiás, Brazil. The plant serves a population of about 2,679 residents, reflecting its role in managing domestic wastewater for this small community in the Central-West region. Its location along Avenida dos Tamboris places it within the urban fabric of Aruanã, an area known for its proximity to the Araguaia River. The plant provides secondary treatment, a standard level that typically involves biological processes to reduce organic matter and suspended solids. Secondary treatment aligns with Brazilian regulatory standards for smaller agglomerations under CONAMA resolutions. The treated effluent from ETE ARUANA GO is discharged into local water bodies, likely tributaries of the Araguaia River, which flows northward to join the Tocantins River and eventually reaches the Atlantic Ocean near the Amazon delta. This watershed supports diverse aquatic life and is important for regional fisheries and riparian ecosystems. The plant's inland location, over 50 km from the coast, reduces direct marine impact, but proper treatment remains critical for protecting freshwater resources in the Cerrado biome.

The plant discharges into the Araguaia River basin, a major tributary of the Tocantins River that drains into the Atlantic Ocean. This watershed supports diverse aquatic ecosystems, including floodplain wetlands and gallery forests, which are vital for fish spawning and migratory bird species. The Cerrado biome's seasonal rainfall patterns influence flow regimes, making consistent wastewater treatment important for maintaining water quality during dry periods.