Publisher : The Korean Environmental Sciences Society
DOI : 10.5322/JES.2003.12.2.201
Title & Authors
Development of Activity Enhanced Zero Valent Metals for Permeable Reactive Barrier Kim, Young-Hun; Kim, Myung-Chul;
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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