ETE VIVERDI 1 - Secondary Wastewater Treatment Plant in Cuiabá, Brazil

ETE VIVERDI 1 is a wastewater treatment plant located in the Viverde condominium in Cuiabá, the capital of Mato Grosso state in Brazil's Centro-Oeste region. The plant serves a small population of 124 residents, reflecting its role as a local facility for a residential community within the metropolitan area of Cuiabá. The plant provides secondary treatment, which is the standard biological process for removing organic matter and suspended solids. Under Brazil's environmental regulations, such as CONAMA resolutions and state-level permits, secondary treatment is typically required for discharges into freshwater bodies. The plant's discharge volume is 86.40 m³/day, indicating its modest scale. The treated effluent from ETE VIVERDI 1 likely flows into local watercourses that drain into the Cuiabá River, a major tributary of the Paraguay River basin. This basin is part of the Pantanal, one of the world's largest tropical wetlands, which supports rich biodiversity and is ecologically sensitive. Proper treatment helps protect downstream aquatic ecosystems and water quality for communities relying on the river.

The plant's discharge enters the Cuiabá River watershed, which flows into the Paraguay River and ultimately contributes to the Pantanal wetland system. The Pantanal is a vast floodplain with high biodiversity, hosting numerous fish, bird, and mammal species. Maintaining secondary treatment standards is crucial to prevent nutrient loading and organic pollution that could harm this sensitive ecosystem.