Advanced oxidation processes (AOPs) are advanced processes of wastewater treatment used for oxidizing complex organic constituents present in wastewater that are dif‹cult to degrade biologically into simpler end products (Metcalf & Eddy 2003). The ozonation process is an AOP that can be utilized to degrade complex organic compounds and can also be used as a disinfection process. Ozone is also used in wastewater treatment for odor control purposes (Metcalf & Eddy 2003). The ozonation process can be conducted in different chambers among which bubble columns have gained much popularity in the last decade (Gamal El-Din and Smith 2001a).