ETE Rio Verde II - Secondary Wastewater Treatment Plant in Rio Verde de Mato Grosso, Brazil

ETE Rio Verde II is a municipal wastewater treatment plant located in Rio Verde de Mato Grosso, a city in the state of Mato Grosso do Sul, Brazil. The plant serves a small population of 442 residents, reflecting the scale of a rural or small-town facility in the Brazilian Midwest region. The plant provides secondary treatment, which is the standard level required under Brazilian regulations (CONAMA resolutions) for most inland water bodies. Secondary treatment typically involves biological processes to remove organic matter and suspended solids. The treated effluent is discharged into local water bodies that drain into the Paraguay River basin, part of the larger Paraná-Paraguay system. This region is ecologically significant, supporting diverse aquatic life and wetlands. Proper treatment helps protect downstream water quality and ecosystems, including the Pantanal, one of the world's largest tropical wetlands.

The plant discharges into local streams that flow into the Paraguay River basin, which ultimately drains into the Paraná River and the Río de la Plata estuary. The region is part of the Cerrado biome, a savanna ecosystem with high biodiversity. Downstream areas include the Pantanal wetlands, a critical habitat for migratory birds, fish, and other wildlife. Effective wastewater treatment is essential to prevent nutrient pollution and maintain water quality in these sensitive environments.