ETE Parque das Cachoeiras - Secondary Wastewater Treatment in Valparaíso de Goiás, Goiás

ETE Parque das Cachoeiras is a municipal wastewater treatment plant located in Valparaíso de Goiás, within the state of Goiás, Brazil. The plant serves a population of approximately 2,304 residents, classifying it as a small-scale facility in the context of Brazilian sanitation infrastructure. It operates under Brazil's national environmental regulations, which mandate secondary treatment for urban wastewater to protect water resources. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With a discharge volume of 312.19 m³ per day, the facility manages the wastewater generated by the local community. As a small agglomeration, it meets the treatment expectations set by Brazilian Resolution CONAMA 430/2011, which requires secondary treatment or equivalent for wastewater discharges into water bodies. The treated effluent is discharged into the local watershed, which ultimately drains into the Paraná River basin, one of South America's major river systems. This basin supports diverse aquatic ecosystems and provides water for agriculture, industry, and human consumption downstream. Proper treatment at ETE Parque das Cachoeiras helps reduce nutrient and organic pollution, protecting water quality in the region.

The plant discharges into the Paraná River basin, a vast watershed that flows through Brazil, Paraguay, and Argentina before reaching the Río de la Plata estuary. This basin supports rich biodiversity, including migratory fish species and extensive wetlands. Effective wastewater treatment is crucial to prevent eutrophication and maintain the ecological health of these downstream environments.