ETE VILLAS BOAS Wastewater Treatment Plant, Cuiabá, Mato Grosso, Brazil

ETE VILLAS BOAS is a wastewater treatment plant located in the Santa Rosa neighborhood of Cuiabá, Mato Grosso, Brazil. The plant serves a small population of 124 people and operates as part of the municipal wastewater infrastructure in the Cuiabá metropolitan region. The plant provides secondary treatment, which is the standard biological treatment process that removes organic matter and suspended solids. In Brazil, wastewater treatment plants are regulated under federal environmental laws (CONAMA resolutions) and state-level permits, with secondary treatment being the minimum requirement for most urban areas. The treated effluent is discharged into local water bodies that ultimately drain into the Cuiabá River, a major tributary of the Paraguay River basin. This basin supports the Pantanal, one of the world's largest tropical wetlands, making proper treatment essential for downstream ecological health.

The plant discharges into the Cuiabá River watershed, which flows into the Paraguay River and eventually the Pantanal wetlands. The Pantanal is a vast floodplain ecosystem that supports diverse aquatic life, including fish, caimans, and migratory birds. Effective secondary treatment helps reduce nutrient and organic pollution that could otherwise harm this sensitive downstream environment.