Gas-induced ozonator with narrower baffles to enhance the ozone utilization rate

Several characteristics that involve the gas/liquid flow pattern, the mixin g time and the ozone utilization rate of a modified gas-induced ozonator we re studied. In such an ozonator, four narrower baffles having a width 1/25 of the vessel diameter and two in-series 45 degrees downward pitched blade turbines (PBTs) were employed. At high impeller speeds, the gas induction e nhanced the gas-liquid utilization. A model heterogeneous ozonation of the C.I. Reactive Blue 19 dye (RB 19) was conducted to examine the effect of va rious operational parameters. Results concluded that the modified gas-induc ed ozonator provides high ozone utilization rate under stable gas induction and proper inlet gas flow rate. In addition, a comparison between the pres ent ozonator and other gas inducing reactors in the literature was also mad e.