ETE Novo Diamantino Wastewater Treatment Plant, Diamantino, Mato Grosso

ETE Novo Diamantino is a wastewater treatment facility located in Diamantino, within the state of Mato Grosso, Brazil. The plant serves a population of 1,455, classifying it as a small-scale municipal treatment system in the central-west region of the country. The plant provides secondary treatment, which is the standard biological process for removing organic matter and suspended solids. For small agglomerations in Brazil, secondary treatment aligns with national environmental regulations under CONAMA resolutions, which set effluent quality standards for discharge into surface waters. The treated effluent is discharged into local water bodies that ultimately drain into the Paraguay River basin, a major hydrological system in South America. This basin supports diverse aquatic ecosystems and is part of the Pantanal, one of the world's largest tropical wetlands, highlighting the importance of proper wastewater management in the region.

The plant's discharge enters local streams that flow into the Paraguay River basin, which feeds the Pantanal region, a vast floodplain ecosystem. The Pantanal is ecologically sensitive, supporting rich biodiversity including migratory birds, fish, and aquatic plants. Proper treatment helps prevent nutrient loading and contamination that could harm these downstream habitats.