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Open Access The Dechlorination of Hydrocarbons

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The pollution of groundwater and soils by industrial chemicals is a cause of significant environmental concern. Treatment with palladium is suggested as a means of decontaminating certain occurrences of polluted soil and groundwater. Palladium can be chemically deposited onto zero-valence iron (Fe0) and the resulting bimetal is very effective in dechlorinating many of the toxic chemicals, produced as industrial effluents, that are found in soils and groundwater. With a palladium content of 0.05 per cent (w/w), the rate at which trichloroethene is dechlorinated is one to two orders of magnitude faster than with iron alone. Similarly, a bimetal made of palladium/iron readily dechlorinates dichloromethane and polychlorinated biphenyls which are not easily reduced by Fe0.

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Document Type: Research Article

Publication date: January 1, 1997

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