| 초록 |
The oxidation of Ce(III) nitrate in nitric acid medium by ozone was investigate. The effect of oxidation rate was studied under the various parameters like concentration of Ce(III), concentration of nitric acid, ozone flow rate. The reaction between ozone and cerium containing nitric acid solution was performed in a bubble diffuser and bubble column at room temperature. The rate constants were calculated based on pseudo first order kinetics. The pseudo first order rate constant was depending on the initial concentration of the Ce(III), nitric acid in the solution. The most effective way to increase the interfacial area available for mass transfer is decreasing the size of the ozone gas bubbles that are dispersed in liquid phase of the bubble column reactor. After finding the suitable condition for Ce(III) oxidation, this was applied to the phenol destruction. |
