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http://dx.doi.org/10.5322/JES.2003.12.2.201

Development of Activity Enhanced Zero Valent Metals for Permeable Reactive Barrier  

Kim, Young-Hun (Dept. of Environmental Engineering, Kyungpook National University)
Kim, Myung-Chul (School of General Education, Kyungil University)
Publication Information
Journal of Environmental Science International / v.12, no.2, 2003 , pp. 201-205 More about this Journal
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.
Keywords
Zero-Valent Metals; Reduction; Dechlorination; Carbon tetrachloride; Palladium;
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