There an presented results of studies on the sorption of nickel ions (in presence of various quantities of NaOH) on the CBV 10A zeolite in sodium form. The sorption of nickel ions is the result of the ion exchange reaction, adsorption, and precipitation on the surface of zeolite. The process should be carried out at pH from 2 to 6 to minimize the migration of Al and Si ions from the zeolite skeleton into the solution.