Conversion of adsorption properties of bentonite clays under complex technogenic impact

The results of study of the change in the sorption index by chemical, thermal and mechanical treatment of bentonite clay have been obtained. They showed that during the complex processing of samples with mechanical pressure, temperature and cationic solutions, there is a general tendency to an increase in the sorption index. It was found that the greatest effect on the activation of sorption properties is exerted by vertical pressure, heat treatment of samples at 200 оС and saturation with a cationic solution of ferric chloride, which allows us to consider this processing of samples as the most effective for the samples of this study.