| Abstract: | Investigations of the Adsorptive Separation of Volatile Chlorinated Hydrocarbons (VCHC) from Water with Humic Substance by Novel Polymeric Adsorbents and Activated Carbons. Part I: Isotherms and Kinetics of Adsorption The isotherms and kinetics of adsorption of different volatile chlorinated hydrocarbons (VCHC) (1,2-dichloroethane, 1,1,1-trichloroethane, trichloroethene) and a humic substance from water as well as these VCHC from water with humic substance onto novel polymeric adsorbents (WOFATIT EP 63, DOWEX XUS 43493 and XUS 43546, MACRONET MN 100 and MN 200) were studied in comparison to activated carbons (NORIT ROW 0.8 SUPRA, PRECOLITH BKK 3, HYDRAFFIN CG). It was determined that the novel polymeric adsorbents remove the VCHC well and the humic substance in contrast to the activated carbons only a few. The decrease of the equilibrium loading for the VCHC due to the presence of humic substance is at the activated carbons approximately double as high as at the novel polymeric adsorbents, whereas in the kinetics of adsorption no substantial influences of the humic substance on the mass transfer were determined. |
