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KMID : 1024520040130010037
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Journal of the Environmental Sciences
2004 Volume.13 No. 1 p.37 ~ p.40
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A Study on the reaction rate constant by UV Photooxidation and Photo-catalytic oxidation process
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Jeong Chang-Hoon
Lee Kyung-Ho
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Abstract
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In this study, the decomposition of gas-phase TCE, Benzene and Toluene, in air streams by direct UV Photolysis and UV/TiO process was studied. For direct UV Photolysis, by regressing with computer calculation to the experimental results the value of reaction rate constant k of TCE, Toluene and Benzene in this work were determined to be 0.00392s-l/, 0.00230s-1/ and 0.00126s-1/, respectively. And the adsorption constant K of TCE, Toluene and Benzene in this work were determined to be 0.0519 mol-l/ ,0.0313mo1-1/ and 0.0084mo1-1/, respectively. For UV/TiO system by regressing with computer calculation to the experimental results the value of reaction rate constant k of TCE, Toluene, and Benzene in this work were determined to be 5.74g/min, 3.85g/min, and 1.18g/min, respectively. And the catalyst adsorption constant K of TCE, Toluene, and Benzene in this work were determined to be 0.0005㎥/mg, 0.0043㎥/mg and 0.0048㎥/mg, respectively.
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KEYWORD
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TCE, Benzene, Toluene, UV, TiO₂, Photolysis
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