APPLICATION OF CHITIN CONTAINING SORBENTS FOR TREATMENT OF WATER SOLUTIONS

Abstract

The objective of this work was to study the sorption properties of chitin containing sorbents (ShCS) which were prepared from fungus mycelium of Aspergillus niger - waste of biotechnological production of citric acid. These sorbents were used for removing heavy metals (Cu(II), Zn(II), Cr(VI), Cd(II), Pb(II)) from water solutions. For comparison chitosan containing sorbents (ChaCS) from Aspergillus niger, which are prepared according to the Muzzarelli method, were used. The influence of the degree of deacetylation (DD) and size of particles on the sorption properties of ChCS and ChaCS was shown. Molecular modeling of chelating complex Pb(II) - chitin was realized by the method of molecular mechanics MM+.