Abstract
Composite activated carbon BAU-A, silica and kaolin with addition of silver has been synthesized for the purpose of water purification from impurities. The increase in the degree of composite fragments dispersion to nanoparticles after treatment with NaOH with the help of microscopy scanning method has been revealed. Processes of ions Mn2+ sorption from aqueous solution have been investigated. Physico-chemical properties (limiting specific adsorption, selectivity coefficient, distribution coefficiet ) have been established. The mechanism of Mn2+ sorption has been proposed. It shows that when its concentrations is low, then ion-exchange sorption takes place, while at high concentration, the absorption process with ion redistribution equilibrium between the solution and the pore space takes place. The concentration, lower which the sorption clearing reaches MPC has been revealed, as well as the upper limit of the concentration at which the composite preserves selectivity.
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