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In the scenario of the Brumadinho tragedy, the question is inevitable: how could everything happen so soon after Mariana? The fantastic thing was to look for answers in three areas: economics, politics and engineering.
The structure that erupted in Brumadinho is an upstream dam, of the same type as the Fundão Dam in Mariana, and others that have exploded in Minas Gerais over the past 30 years.
The elevation, or elevation, is done with the rejection itself, towards the dam. A more common and less expensive but dangerous method.
On the economy side, Minas Gerais is facing the worst fiscal crisis in its history. An economist warned, however, that despite the difficulties in Minas, Vale, an international company, was doing well. In other words, the resources to invest in the safety of dams are not lacking.
According to the Federal Audit Office, after the Mariana accident, the current National Mining Agency, which oversees the sector, had only 36 trained servers to monitor the dams. In Brazil, there are 790 tailings dams.
At the palace of Inconfidência, seat of the Legislative Assembly of Minas Gerais, after the tragedy of Mariana, bills were trying to harden the rules governing mining activity in the city. State, but none of them was adopted.
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