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The kinetics of reductive dehalogenation of a set of halogenated aliphatic hydrocarbons in anaerobic sediment slurries |
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| Authors: | Willie Peijnenburg Lennart Eriksson Arthur de Groot Michael Sjöström Hans Verboom |
| Institution: | 1. Laboratory for Ecotoxicology, National Institute of Public Health and Environmental Protection, P.O. Box 1, NL-3720, BA Bilthoven, The Netherlands 2. Umetri AB, P.O. Box 79 60, S-90719, Ume?, Sweden 3. Research Group for Chemometrics, Department of Organic Chemistry, University of Ume?, S-90187, Ume?, Sweden |
| Abstract: | Disappearance rate constants are reported for the reductive transformation of 17 halogenated aliphatic hydrocarbons in anaerobic sediment-water samples. Statistical experimental design in combination with multivariate chemical characterization of their chemical properties was used to select the compounds. Degradation followed pseudo first-order kinetics through at least two half-lives for 15 of the 17 compounds. Of all the compounds investigated, 1,2,3-trichloropropane and dichloromethane were unique in that they were dehalogenated according to zero-order kinetics. Reductive dehalogenation was the sole transformation reaction taking place. |
| Keywords: | Aliphatic hydrocarbons sediment slurries halogenated aliphatic hydrocarbons hydrocarbons aliphatic reductive dehalogenation Quantitative Structure Activity Relationships (QSAR) QSAR zero-order kinetics |
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