Interactions between natural materials and inorganic pollutants

The heavy metal pollution poses a threat to groundwater resources, soils and sub-soils. In contrast to most organic contamination, the metallic elements are not biodegradable and potentially toxic. Clays play a significant role in a wide range of environmental problems, and their applications are increasing steadily, particularly in trapping heavy metals and reducing their toxic effects. In our work we have conducted tests adsorption of chromium on a clay-like bentonite.