Rasha Hajarat, Alec James

Abstract:

The effect of pH on the rejection of ions was studied. Two different salts were used at three different pH values. The used salts were NaCl and Na2SO4, and the used pH values were 3, 7 and 10. The membrane zeta potential was measured by using NaCl at two different concentrations which are 0.01M and 0.1M. Then the pH of each solution was changed to different values ranging between 3 and 10.