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Five cationic surfactants were employed to modify activated carbon for the purpose of comparing the impacts of surfactant properties and operational parameters on modification. Surfactants under study included cetylpyridinium chloride monohydrate (CPC), hexadecyltrimethylammonium bromide (HDTMA), cetyltrimethylammonium chloride (CTAC), myristyltrimethylammonium bromide (MTAB), and decyltrimethylammonium...
A method of cationic surfactant loading was employed to modify granular activated carbon (GAC) so as to enhance GAC’s adsorption for bromate. Batch experiments of adsorption isotherms and kinetics studies indicated that cetyltrimethylammonium chloride (CTAC) greatly increased GAC’s adsorption capacity for bromate though CTAC loading had adverse effects on adsorption rates. The optimum CTAC loading...
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