Organic polymeric membranes, comparison with

Ji et al. (1995) studied the influence of hydrophobic adsorbent (such as activated carbon) into polymeric polyether-block-polyamide (PEBA) membranes for 1,1,1-trichloroethane (TCA) removal from water by PV. It is already known, in fact, that carbonaceous adsorbents can be successfully used for the removal of small amounts of chlorinated organic compounds from water. TCA flux increases with feed concentrations (from 40 to 300 ppm) for PEBA membranes filled with both tested activated carbon WPX (a powdered adsorbent produced by Calgon Carbon Corporation, PA) and carbonaceous adsorbent Amersorb 1500 (Rohm and Hass Co., PA). The separation factor increases for membranes filled with activated carbon in comparison with unfilled membranes (axcAffl20= 1742 and 2720 for pure and PEBA membranes filled with 10 wt% activated carbon, respectively). However, membranes filled with Ambersorb 1500 do not show any improvement in the separation factor (o tca/h20= 1681). 

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