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Treatment of Odorous air pollutants by Plasma and Photocatalytic Process.

플라즈마 광촉매 복합 긍정을 이용한 악취물질 중 TEA, MEK의 분해처리

  • 최금찬 (동아대학교 환경공학과) ;
  • 정창훈 (동아대학교 환경공학과)
  • Published : 2003.12.01

Abstract

Plasma-photocatalytic oxidation process was applied in the decomposition of Triethylamine(TEA) and Methyl ethyl ketone(MEK). Plasma reactor was made entirely of pyrex glass and consists of 24mm inner diameter, 1,800mm length and discharge electrode of 0.4mm stainless steel. And initial concentrations of TEA and MEK for plasma-photocatalytic oxidation are 100 ppm. Odor gas samples were taken by gas-tight syringe from a glass sampling bulb which was located at reactor inlet and outlet, and TEA and MEK were determined by GC-FID. For plasma process, the decomposition efficiency of TEA and MEK were evaluated by varying different flowrates and decomposition efficiency of TEA and MEK increased considerably with decreasing treatment flowrates. For photocatalytic oxidation process, also the decomposition efficiency of TEA and MEK increased considerably with decreasing treatment flowrates. The decomposition efficiency of MEK was 57.8%, 34.2%, 18.8% respectively and the decomposition efficiency of TEA was reached all 100%. This result is higher than that of plasma process only, From this study, the results indicate that plasma-photocatalytic oxidation process is ideal for treatment of TEA and MEK.

Keywords

Odor;TEA;MEK;Plasma;Photocatalytic oxidation;Photocatalyst

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