Metal oxide catalysts can be used in several applications requiring rapid oxidation of an organic compound. This research describes the catalytic effects of Fe on activated carbon (Fe/Ac) oxidation in an attempt to maximize oxidation rates by a laboratory scale three-phase fluidized bed reactor. Four different conditions have investigated: (a) employing O3 only, (b) employing Ac only, (c) employing Ac enhanced with O3, and (d) employing Fe/Ac enhanced with O3. The Fe/Ac was prepared by using the wetness impregnation method. Phenol 10 mg/l and O3 300 mg/h were used as tested and oxidizing agents that were continuously fed to the effective volume 272 ml reactor at constant flow rate 1 and 2 l/min with co-current and up-flow, respectively. The removal of phenol was identified and quantified by HPLC. From the experimental results, it was found that the phenolic removal using Ac enhanced with O3 provides the best result.