游离氯和结合氯与吸附在颗粒活性炭（GAC）上的酚类反应，生成一系列在没有碳的情况下不会形成的氧化产物。在本研究中，通过将强吸附产物引入GAC柱的流出物中，并监测整个柱中产物的浓度，对这些产物的解吸潜力进行了检查。一些产物，例如对苯醌，可以通过向进水中引入强吸附化合物，例如2,4-二氯酚，来转移到污水中。其他产品，例如4,4'-二羟基联苯，被非常强地吸附，并占据吸附位置，否则可用于去除进水中的其他化合物。 鉴于这些发现和预氯化的其他不良影响，作者建议重新评估导致氯与GAC接触的过程。包括17个参考文献、表格、图表。

Free and combined chlorine react with phenols adsorbed on granular activated carbon (GAC) to produce a series of oxidation products not formed in the absence of carbon. The potential for desorption of these products was examined in this study by introducing a strongly adsorbed product into the effluent of a GAC column and monitoring the concentration of the product throughout the column. Some of the products, e.g., p-benzoquinone, can be displaced into the effluent by the introduction of a strongly adsorbed compound, e.g., 2,4-dichlorophenol, into the influent. Other products, e.g., 4,4'-dihydroxybiphenyl, are very strongly adsorbed and occupy adsorption sites that would otherwise be available for removal of other compounds in the influent. In view of these findings and other undesirable effects of prechlorination, the authors recommend that processes resulting in the contact of chlorine with GAC be reevaluated. Includes 17 references, tables,figures.