Changes of the carbon isotopic composition of trichloroethylene during aerobic biodegradation : : a new tool to estimate removal efficiencies

Barth, JAC and Kalin, R M and Clarke, D and Larkin, M. and Schuth, C. and Bill, M. and Slater, G. and Lollar, B S; Bjerg, P.L. and Engesgaard, P. and Krom, T.D., eds. (2000) Changes of the carbon isotopic composition of trichloroethylene during aerobic biodegradation : : a new tool to estimate removal efficiencies. In: Groundwater 2000. A A Balkema, DNK, pp. 229-230. ISBN 9058091333

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Abstract

Trichloroethylene (TCE) was degraded aerobically with the strain Burkholderia cepacia G4. The degradation leveled out after similar to 40 hours, while the removal efficiency depended on the optical cell density (OD540) During the experiment at an OD540 of 0.8, TCE was degraded up to 59.3%, with an isotopic difference between initial and remaining substrate of 12.3 parts per thousand. At a lower OD540 of 0.5 the amount of TCE degraded was only 40.5% and the delta(13)C(TCE) difference between initial and remaining substrate was 10.5 parts per thousand