Overview
ETE 15 de Maio is a secondary-level wastewater treatment plant in Várzea Grande, Mato Grosso, Brazil. It serves approximately 1,100 people and discharges 100.40 cubic meters of treated effluent.
ETE 15 de Maio is a municipal wastewater treatment plant located in the Primavera neighborhood of Várzea Grande, Mato Grosso, Brazil. The plant serves a small population of around 1,100 residents within the Cuiabá metropolitan region, an area characterized by tropical climate and proximity to the Pantanal wetlands. The plant provides secondary treatment, which is the standard biological treatment stage required under Brazilian regulations (CONAMA resolutions) for most urban wastewater. For a facility of this small scale, secondary treatment effectively reduces organic matter and suspended solids before discharge. The plant reports a daily discharge volume of 100.40 cubic meters, indicating consistent operation. The treated effluent from ETE 15 de Maio ultimately drains into the Cuiabá River basin, which flows through the Pantanal, one of the world's largest tropical wetlands. This downstream ecosystem supports rich biodiversity and is ecologically sensitive to nutrient loading. The plant's secondary treatment helps mitigate pollution impacts on this important aquatic environment.
Environmental context
The plant discharges into the Cuiabá River watershed, which flows into the Pantanal region, a vast floodplain and ecologically sensitive area. The Pantanal supports diverse aquatic life and migratory species, making nutrient and pathogen control critical. Secondary treatment reduces organic load and suspended solids, helping to preserve water quality in this downstream ecosystem.
Frequently asked questions
ETE 15 de Maio is located in the Primavera neighborhood of Várzea Grande, Mato Grosso, Brazil, within the Cuiabá metropolitan region.
The plant serves approximately 1,100 residents in the surrounding area of Várzea Grande.
The treated effluent is discharged into the Cuiabá River basin, which flows into the Pantanal wetlands, a major ecological region.
The plant provides secondary treatment, which is the standard biological treatment required by Brazilian regulations for urban wastewater.
Brazil's CONAMA Resolution 430/2011 sets discharge standards for wastewater. Secondary treatment plants like ETE 15 de Maio must meet limits for BOD, COD, and other parameters to protect receiving water bodies.
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