SiO(2), Al(2)O(3), SiO(2)-Al(2)O(3), NaX and NaY faujasites, NaM mordenite and ZSM-5 high-Si zeolite adsorbents were used for removing methylene blue, as well as Zn(II), Cd(II), Cr(III) and Cr(VI) ions from their aq. solns. at room temp. and BuNH(2) from air at 100 degrees C or 200 degrees C. The faujasites showed the highest adsorption capacity of all impurites studied except for Cr(VI) ions adsorbed on SiO(2), Al(2)O(3) and mordenite with the highest efficiency.