Dados do Trabalho

Título

MAPPING OF THE DECHARACTERIZATION OF TAILINGS DAMS IN THE STATE OF MINAS GERAIS, BRAZIL

Resumo

In Brazil, the failures of the Mariana and Brumadinho dams in Minas Gerais resulted in approximately 300 fatalities and 4 additional disasters. These events caused widespread destruction of communities, environmental manipulation, and pollution of one of the largest regional rivers. Consequently, the legislative process accelerated toward the decharacterization of upstream mineral tailings dams, leading to the enactment of Law No. 23,291 in 2019. This law established the State Policy for Dam Safety in Minas Gerais, aligning with the National Safety Policy for Dams (PNSB). Therefore, this work aimed to map the deactivated dams and those in the process of being deactivated, analyzing the evolution of compliance with the deadlines established by Brazilian legislation. The legislation establishes different deadlines for the completion of decharacterizations, considering the volume stored in the structure. As of the present moment, 70.27% of the structures still require pending actions.

Palavras-chave

Decharactrization; Tailings dams; Mapping

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