[en] The adsorption of cupper, lead, cobalt and nickel from water by granular activated carbon (GAC), a strong cation exchanger (Dowex 50 w-x 8), calcium aluminum silicate and bentonite clay was studied. Batch experiments were carried out to determine the time to maintain equilibrium followed by adsorption isotherm. results obtained by using the different adsorbents were found to match with the freundlich equation. Different factors that affect the absorbability of dissolved metals were studied; among these the chemical form, solution Ph and ionic radii. The results showed that the adsorption treatment by using calcium aluminum silicate and bentonite clay resulted in more removal percent than GAC, and the strong cation exchanger. The removal of heavy metal ions from water using gamma irradiation has been investigated for the cases of Cu²1, Pb²1, Co²1 and Ni²1 ions. These metal ions are reduced by hydrated electrons and hydrogen atoms to lower valence state and eventually precipitate out of solutions