This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Reprints and Permissions Copyright Information Books from ASM Press MicrobeWorld Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Gälli, R Articles by McCarty, P L Search for Related Content PubMed PubMed Citation Articles by Gälli, R Articles by McCarty, P L Agricola Articles by Gälli, R Articles by McCarty, P L

 Previous Article  |  Next Article 

Appl Environ Microbiol. 1989 April; 55(4): 845-851

Kinetics of biotransformation of 1,1,1-trichloroethane by Clostridium sp. strain TCAIIB.

Department of Civil Engineering, Stanford University, California 94305-4020.

ABSTRACT

Batch experiments were conducted to examine the effects of high concentrations of 1,1,1-trichloroethane (TCA) on the biotransformation of TCA by Clostridium sp. strain TCAIIB. The biotic dehalogenation of TCA to 1,1-dichloroethane by nongrowing cells was measured at 35 degrees C, and the data were used to obtain the kinetic parameters of the Monod relationship half-velocity coefficient Ks (31 microM) and the coefficient of maximum rate of TCA biotransformation (kTCA; 0.28 mumol per mg per day). The yield of biomass decreased with an increase in the TCA concentration, although TCA concentrations up to 750 microM did not completely inhibit bacterial growth. Also, kTCA was higher in the presence of high concentrations of TCA. A mathematical model based on a modified Monod equation was used to describe the biotransformation of TCA. The abiotic transformation of TCA to 1,1-dichloroethene was measured at 35 degrees C, and the first-order formation rate coefficient for 1,1-dichloroethene (ke) was determined to be 0.86 per year.

This article has been cited by other articles:

• Kromann, A., Ludvigsen, L., Albrechtsen, H.-J., Christensen, T. H., Ejlertsson, J., Svensson, B. H. (1998). Degradability of chlorinated aliphatic compounds in methanogenic leachates sampled at eight landfills. Waste Manag Res 16: 54-62 [Abstract]