Desorption of Organics Formed on Activated Carbon

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Abstract
Free or combined chlorine reacts with phenols adsorbed on granular activated carbon (GAC) to yield a series of oxidation products that are not formed in the absence of carbon. The potential for desorption of some of these products was demonstrated experimentally by introducing a strongly adsorbed compound into the influent of a GAC column and monitoring the concentration of the product throughout the column. It was also shown that some of the compounds produced catalytically on GAC are very strongly adsorbed and difficult to displace.