ETE MALIBU Wastewater Treatment Plant, Cuiabá, Mato Grosso, Brazil

ETE MALIBU is a wastewater treatment facility located in the Despraiado neighborhood of Cuiabá, the capital of Mato Grosso state in Brazil's Centro-Oeste region. The plant provides secondary treatment for a small population of 124 residents, supporting the sanitation infrastructure of this rapidly growing urban area. As a secondary treatment plant, ETE MALIBU employs biological processes to reduce organic matter and suspended solids, meeting the basic treatment standards required for municipal wastewater in Brazil. Brazilian regulations, including CONAMA resolutions, set effluent quality standards for such facilities. The treated wastewater from ETE MALIBU ultimately flows into the Cuiabá River basin, which is part of the larger Paraguay River watershed. This river system supports diverse aquatic life and is ecologically important for the Pantanal region, one of the world's largest tropical wetlands. The plant's operation helps reduce pollution loads entering this sensitive downstream environment.

The plant discharges into the Cuiabá River basin, which drains into the Paraguay River and eventually the Paraná River system. This watershed supports the Pantanal, a vast floodplain ecosystem of global ecological significance. The region's seasonal flooding and rich biodiversity depend on maintaining water quality, making effective wastewater treatment critical for preserving aquatic habitats and migratory corridors.