Advances in Water Treatment and Enviromental Management

ADSORPTION OF TRIHALOMETHANES ON TO ZEOLITES 187plot is given in Figure 3 for the silicalite/chloroform/water system over a broadequilibrium concentration range covering µg -1 to mg -1 THM concentrations.Values for the Freundlich constants K F and , calculated fromthese results, arealso given in Table 2.A similar plot is given in Figure 4 for a carbon/chloroform/water system over thesame range, for comparison. The granular activated carbon used was Filtrasorb400, supplied by Chemviron Carbon, and was used as supplied.Figure 5 shows a comparison of THM concentration versus time curves for a silicalite/chloroform/water system and a carbon/chloroform/ water system. The same weightof adsorbent was used in each case, ie 5mg.Fig 4 Freundlich PlotCHCL3/GAC F-400 SystemFig 5 Uptake Curve.Silicalite and Activated Carbon