ETE MIRASSOL D OESTE - Secondary Wastewater Treatment Plant in Mirassol d'Oeste, Mato Grosso

ETE MIRASSOL D OESTE is a municipal wastewater treatment plant located in Mirassol d'Oeste, in the state of Mato Grosso, Brazil. The plant serves a small population of 1,771 residents, reflecting its role in a smaller urban agglomeration within the Centro-Oeste region. The plant provides secondary treatment, which is the standard level required under Brazilian regulations for communities of this size. Brazil's National Environment Council (CONAMA) sets discharge standards that mandate adequate treatment to protect water quality. The plant's discharge volume of 152.61 units indicates its operational scale. The treated effluent is released into the local watershed, which ultimately drains into the Paraguay River basin, a major system in the Pantanal region. The Pantanal is one of the world's largest tropical wetlands, supporting rich biodiversity. The plant's secondary treatment helps reduce organic load and pollutants, contributing to the protection of downstream aquatic ecosystems.

The plant discharges into the Paraguay River basin, which flows through the Pantanal, a vast tropical wetland of global ecological importance. The Pantanal supports diverse wildlife including jaguars, capybaras, and numerous bird species. Secondary treatment reduces organic pollutants and nutrients, helping to maintain water quality in this sensitive ecosystem.