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http://dx.doi.org/10.4491/KSEE.2013.35.10.703

A Study of Ozonation of Dimethyl Phthalate  

Lee, Cheal-Gyu (Department of Environmental Engineering, Cheongju University)
Song, Jun-O (Department of Environmental Engineering, Cheongju University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.35, no.10, 2013 , pp. 703-709 More about this Journal
Abstract
Ozonation was performed under various experimental conditions that $Al_2O_3$ catalysts dosage and temperature for removal of DMP in laboratory scale batch reactor. Flow rate of ozone $1.0Lmin^{-1}$ and ozone concentration of $300{\pm}10mgL^{-1}$ were maintained constantly, and the pH, $COD_{Cr}$ and TOC was measured in 10 min intervals during the 60 min at oxidation processes. As a result, the presence of the $Al_2O_3$ than only ozonation increased the removal efficiency of both $COD_{Cr}$ and TOC in solution. The pseudo first-order rate constants for the elimination of $COD_{Cr}$ and TOC were $3.65{\times}10^{-4}sec^{-1}$, $2.52{\times}10^{-4}sec^{-1}$, and activation energy was $0.75kcal{\cdot}mol^{-1}$ and $0.70kcal{\cdot}mol^{-1}$ at $20^{\circ}C$, respectively.
Keywords
Dimethyl phthalate; $Al_2O_3$; Ozonation; Activation Energy;
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