한국환경과학회지 (Journal of Environmental Science International)

  • 제15권3호
  • /
  • Pages.193-201
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  • 2006
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  • 1225-4517(pISSN)
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  • 2287-3503(eISSN)
한국환경과학회 (The Korean Environmental Sciences Society)
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O3/H2O2와 O3/Catalyst 고급산화공정에서 1,4-dioxane의 제거 특성

Removal Characteristics of 1,4-dioxane with O3/H2O2 and O3/Catalyst Advanced Oxidation Process

  • 박진도 (울산대학교 생명화학공학부) ;
  • 서정호 (울산과학대학 환경생활화학과) ;
  • 이학성 (울산대학교 생명화학공학부)
  • Park, Jin-Do (School of Chemical Engineering & Bioengineering, University of Ulsan) ;
  • Suh, Jung-Ho (Department of Environmental & life Chemistry, UIsan College) ;
  • Lee, Hak-Sung (School of Chemical Engineering & Bioengineering, University of Ulsan)
  • 발행 : 2006.03.01
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초록

Advanced oxidation processes involving $O_3/H_2O_2$ and $O_3/catalyst$ were used to compare the degradability and the effect of pH on the oxidation of 1,4-dioxane, Oxidation processes were carried out in a bubble column reactor under different pH. Initial hydrogen peroxide concentration was 3.52 mM in $O_3/H_2O_2$ process and 115 g/L (0.65 wt.%) of activated carbon impregnated with palladium was packed in $O_3/catalyst$ column. 1,4-dioxane concentration was reduced steadily with reaction time in $O_3/H_2O_2$ oxidation process, however, in case of $O_3/catalyst$ process, about $50{\sim}75%$ of 1,4-dioxane was degraded only in 5 minutes after reaction. Overall reaction efficiency of $O_3/catalyst$ was also higher than that of $O_3/H_2O_2$ process. TOC and $COD_{cr}$ were analyzed in order to examine the oxidation characteristics with $O_3/H_2O_2\;and\;O_3/catalyst$ process. The results of $COD_{cr}$ removal efficiency and ${\Delta}TOC/{\Delta}ThOC$ ratio in $O_3/catalyst$ process gave that this process could more proceed the oxidation reaction than $O_3/H_2O_2$ oxidation process. Therefore, it was considered that $O_3/catalyst$ advanced oxidation process could be used as a effective oxidation process for removing non-degradable toxic organic materials.

키워드

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