Study on properties of the cheating fiber and its adsorption of metal ions in apple juice

In order to obtain chelating fiber for adsorbing the metal ions in apple juice,the effect of different conditions on adsorption properties of chelating fiber for Cu2+and Pb2+ were discussed,such as pH and the time of adsorption.The desorption and its regeneration were simply discussed.The results showed that the chelating fiber had good kinetic property and the adsorbed equilibrium completed almost within 20~30min;the adsorption properties was influenced by the temperature and pH and the adsorption process was fit for the isothermal equation of Freundlich.The chelating fiber could be used repeatedly.This chelating fiber had better adsorption effect on the metal ions in apple juice,such as Cu and Pb.The removal efficiency approximated to 80%.