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The culture reductively dechlorinated perchloroethylene (PCE) to trichloroethylene (TCE), 1,1\u2010dichloroethylene (1,1\u2010DCE), vinylchloride (VC), and ethylene and ethane. The absence : of methanol or the addition of 2\u2010bromoethanesulfonic. acid in the presence of methanol suppressed both methanogenic activity and dechlorination. In contrast, acetate production continued in the presence of 2\u2010bromoethanesulfonic acid. These results suggest that dechlorination was strongly linked to methane formation and not to acetate production. A kinetic model, developed to describe both methanogenesis and dechlorination, successfully predicted experimentally measured concentrations of biomass, methane, substrate, and chlorinated ethylenes. The average maximum specific dehalogenation rates for PCE, TCE, 1,1\u2010DCE, and VC were 0.9 \u00b1 0.6, 0.4 \u00b1 0.1, 12 \u00b1 0.1, and 2.5 \u00b1 1.7 \u03bcmol contaminant\/ g. DW\/day, respectively. This pattern for dechlorination rates is distinctly different than that reported for transition metal cofactors, where rates drop by approximately one order of magnitude as each successive chlorine is removed. The experimental results and kinetic analysis suggest that it will be impractical to targeting methanol consuming methanogenic organisms for in situ ground\u2010water restoration. \u00a9 1995 John Wiley &amp; Sons, Inc.<\/jats:p>","DOI":"10.1002\/bit.260480614","type":"journal-article","created":{"date-parts":[[2004,12,29]],"date-time":"2004-12-29T10:07:20Z","timestamp":1104314840000},"page":"659-666","source":"Crossref","is-referenced-by-count":25,"title":["Kinetics of chlorinated ethylene dehalogenation under methanogenic conditions"],"prefix":"10.1002","volume":"48","author":[{"given":"Rodney S.","family":"Skeen","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jianwei","family":"Gao","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Brian S.","family":"Hooker","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2004,2,19]]},"reference":[{"key":"e_1_2_1_2_2","doi-asserted-by":"publisher","DOI":"10.1002\/bit.260420203"},{"key":"e_1_2_1_3_2","doi-asserted-by":"publisher","DOI":"10.1080\/10934529009375612"},{"key":"e_1_2_1_4_2","first-page":"78","volume-title":"Biochemical engineering fundamentals","author":"Bailey J. 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