In this study, the removal of nickel (II) ions using a strong acid cation resin was investigated though a fixed bed column technique.The aim of this study was to enhance the performance of the resin through modification.The resin was modified employing the impregnation method. A characterization analysis was conducted to investigate the resin after the modification with comparison to the original one.The equilibrium behavior of the modified resin was investigated at different pH values (3-7) and different initial concentrations of nickel(1.8, 2.8 and 3.8 g/L). The effect of regeneration on the modified resin was determined to show that the regeneration did not affect on the equilibrium performance. The removal efficiency and rate of removal were represented on breakthrough curves.The kinetics of the process was determined;Thomas model was used to express and evaluate the experimental data which showed a high correlation.The results suggest a better performance of the modified resin compared to the originalonewhich ansignificantlyenhancethe actual applicationof ion exchange process.