ETE RIBEIRAO BAUS Wastewater Treatment Plant, Cuiabá, Mato Grosso

ETE RIBEIRAO BAUS is a wastewater treatment plant located in the Florais dos Lagos neighborhood of Cuiabá, Mato Grosso, Brazil. It serves a small population of 372 residents, reflecting its role in a localized community within the broader Cuiabá metropolitan area. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. As a small-scale facility in Brazil, it operates under national regulations such as CONAMA Resolution 430/2011, which sets effluent discharge standards for wastewater treatment plants across the country. The treated effluent is discharged into local water bodies that ultimately drain into the Cuiabá River, a key tributary of the Paraguay River Basin. This basin supports the Pantanal, one of the world's largest tropical wetlands, making proper treatment essential for preserving downstream aquatic ecosystems and biodiversity.

The plant discharges into the Cuiabá River watershed, which flows into the Paraguay River and eventually the Pantanal wetland, a vast floodplain of global ecological importance. The Pantanal supports diverse aquatic life, including fish, caimans, and migratory birds, and is sensitive to nutrient pollution. Secondary treatment helps reduce organic load and protect this downstream environment.