ETE AGUIARNOPOLIS Wastewater Treatment Plant, Aguiarnópolis, Tocantins, Brazil

ETE AGUIARNOPOLIS is a wastewater treatment plant located in Aguiarnópolis, a municipality in the state of Tocantins, Brazil. The plant serves a population of approximately 1,868 people, classifying it as a small-scale facility within the region's sanitation infrastructure. The plant provides secondary treatment, which is the standard level required under Brazilian regulations (CONAMA Resolution 430/2011) for most inland water bodies. The facility discharges a daily volume of 864.00 m³ of treated wastewater. As a small agglomeration, it operates under the national environmental framework overseen by state environmental agencies. The treated effluent is discharged into local watercourses that drain into the Tocantins River basin, part of the larger Amazon River system. The plant plays a role in protecting downstream water quality and aquatic ecosystems in the region.

The plant discharges into local streams that flow into the Tocantins River, a major tributary of the Amazon River basin. This watershed supports diverse aquatic life and is ecologically sensitive. The secondary treatment helps reduce organic load and nutrients, mitigating impacts on downstream water bodies and maintaining the ecological balance of the region.