天然高分子吸附剂吸附水中的Cu(上标 2+)和Ni(上标 2+)

In order to remove copper ion and nickel ion from the water more effectively, the adsorbing effects on copper ion and nickel ion of the three kinds of adsorbent chitosan, peat and marine algae had been studied. Meanwhile, it also made a study about the effects on the adsorption rate of copper ion and nickel ion of the pH of solution, adsorption time, mass concentration of adsorbent and mass concentration of metal ion. The results show that the effect on adsorbing copper ion of the chitosan is the best and the adsorption rate can even reach 98% when the chitosan is under such conditions that pH is 6, mass concentration of adsorbent is 3g/L and the adsorption time is 120 minutes. And the effect on adsorbing nickel ion of the peat is the best and the rate of adsorption is 80% when the peat is under such conditions that pH is 6, mass concentration of adsorbent is 1g/L and the adsorption time is 120 minutes.