Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Development of Activity Enhanced Zero Valent Metals for Permeable Reactive Barrier

침투성 반응벽체를 위한 고활성 영가금속 개발

  • Kim, Young-Hun (Dept. of Environmental Engineering, Kyungpook National University) ;
  • Kim, Myung-Chul (School of General Education, Kyungil University)
  • Published : 2003.02.01
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Abstract

The dechlorination of chlorinated methanes by iron powder and palladium coated iron (Pd/Fe) was studied in batch experiments. Iron powder dechlorinated carbon tetrachloride (CT) with a half-life of 4 days. Three chloromethane was found as major product and less chlorinated daughters. Mass balance found was to be about 93-99%. Pd/Fe showed very enhanced reactivity for CT in comparing with plain iron. The major dechlorination products of CT were also less chlorinated methanes with Pd/Fe. Pd/Fe also degrade the produced less chlorinated compounds. Sequential reactions were occurred on Pd/Fe. As the Pd/Fe content increased, the reaction rate was increased linearly.

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References

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