Analysis of influence of microorganisms on heavy metals adsorption by aluminosilicate sorbents

Abstract

The article is devoted to the problems of sorption purifying of the water environments polluted by heavy metals ions. The influence of microorganisms on sorption properties of aluminosilicate sorbents is examined. It was studied sorption of Fe 2 + , Cu 2 + ions with bacterial cell in the free state immobilized on a surface of aluminosilicate sorbents and also at formation of biofilms. It is shown that the presence of the immobilized microorganisms increases the limiting capacity of heavy metals sorption by aluminosilicate sorbent. The formation of biofilms on the surfaces of sorbent increases heavy metals resistance of microorganisms and their sorption efficiency in comparison with the aluminosilicate sorbent.