Chemical, Mineralogical and Physical Characteristics of a Material Accumulated on the River Margin from Mud Flowing from the Collapse of the Iron Ore Tailings Dam in Bento Rodrigues, Minas Gerais, Brazil
Keywords:
heavy metals, contamination, recovery of degraded areas, agricultural areas
Abstract
The rupture of an itabirito mining tailings dam at the headwaters of the Doce River Basin (Minas Gerais and Espírito Santo, Brazil) caused the greatest environmental catastrophe of the planet Earth related to this activity. The tailings were deposited both in the bottom and on the riverside terrace of the rivers, causing silting and deep changes in the water quality and burial of the main agricultural areas of this basin. For these areas to return to predisaster levels, it is imperative that the material deposited on the river terraces be thoroughly characterized. The objective of this work was to characterize the material from the rupture of the Fundão dam, deposited on the river terrace of the Carmo River, a tributary of the Doce River. The material was collected at a depth of 0 to 30 cm from a tail layer about 3 meters thick deposited on the river terrace on the right bank of the Carmo River in the urban area of Barra Longa, Minas Gerais.
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2023-02-24
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