Trihalomethanes adsorption on activated carbon fiber

The mechanism of activated carbon fiber (ACF) adsorption trihalomethanes (THMs) was studied. It was found that ACF adsorption THMs was exothermic, the physico-adsorption principally, but not a complete monolayer adsorption. The adsorptive capacities of ACF increased as the four species of THMs became more hydrophobic, and as the chlorine atoms in CHCls were substituted by more bromine atoms. The result of fixed-bed reactor adsorption was fitted to that of isotherm experiments.