Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Reaction Kinetics and Dependence of Energy Efficiency in the Dilute Trichloroethylene Removal by Non-thermal Plasma Process combined with Manganese Dioxide

  • Han, Sang-Bo (KERI) ;
  • Oda, Tetsuji (The Department of Electrical Engineering, The University of Tokyo) ;
  • Park, Jae-Youn (The Department of Electrical Engineering, The University of Kyungnam) ;
  • Koh, Hee-Seok (The Department of Electrical Engineering, The University of Kyungnam) ;
  • Park, Sang-Hyun (The Department of Electrical Engineering, The University of Kyungnam) ;
  • Lee, Hyun-Woo (The Department of Electrical Engineering, The University of Kyungnam)
  • Published : 2005.07.07
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Abstract

In order to improve energy efficiency in the dilute trichloroethylene removal using the nonthermal plasma process, the barrier discharge treatment combined with manganese dioxide was experimentally studied. Reaction kinetics in this process was studied on the basis of final byproducts distribution. Decomposition efficiency was improved to about 99% at the specific energy 40J/L with passing through manganese dioxide. C=C $\pi$ bond cleavage in TCE gave DCAC (single bond, C-C) through oxidation reaction during the barrier discharge plasma treatment. Those DCAC were broken easily in the subsequent catalytic reaction due to the weak bonding energy about 3 ~ 4 eV compared with the double bonding energy in TCE molecules. Oxidation byproducts of DCAC and TCAA from TCE decomposition are generated from the barrier discharge plasma treatment and catalytic surface chemical reaction, respectively. Complete oxidation of TCE into $CO_X$ is required to about 400J/L.

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