Abstract
In this study, we focused on the ozone/hydrogen peroxide water treatment system, one of the advanced oxidation processes, which is expected to be applicable to the treatment of various kinds of waste water. We experimentally investigated the effect of operational parameters with a reaction system with single ozone contactor, and tried to determine the appropriate conditions for the high performance of the system. As the results of this research, we found the existence of the optimal value of overall volumetric mass transfer coefficient, the necessity of maintaining the concentrations of dissolved ozone and hydrogen peroxide in an appropriate range, and the importance of controlling the ozone dose for the high performance of the system. These results also suggested that multiple injection of ozone and hydrogen peroxide is effective fir the high performance. Thus, we have experimentally shown that the multiple injection system achieves higher TOC removal than the single injection system at the same doses of ozone and hydrogen peroxide.
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