Perchloroethylene utilization by methanogenic fed-batch cultures
Purchase on Springer.com
$39.95 / €34.95 / £29.95*
Rent the article at a discountRent now
* Final gross prices may vary according to local VAT.
Anaerobic sludge granules from two different sources were maintained in serum bottles and fed at 3-d intervals in the presence of 0.2 ppm perchloroethylene (PCE). Following acclimation periods ranging from 48–79 d, PCE degradation was observed with 95% utilization in 3 d. Only granules amended with formate as a cosubstrate showed PCE-degrading activity, whereas those utilizing acetate, lactate, ethanol, and methanol remained PCE-inactive after 90 d. Both cosubstrate consumption and PCE degradation ceased when acetate replaced formate as the cosubstrate for formate-acclimated cultures. The total moles of chlorinated and nonchlorinated ethene moieties were found to remain constant over time, demonstrating conservation of mass. Trichloroethylene (TCE) andcis-1,2 dichloroethylene (cis-1,2 DCE) were identified as the major dechlorination end products. The absence of further dechlorination in the presence of a great excess of reducing equivalents (13,000 times that needed) supports the hypothesis that complete degradation of PCE to ethene is not solely dependent on excess reducing equivalents, but also requires the presence of an appropriate microbial consortium.
- Keil, S. L. (1977), Chlorocarbons—Hydrocarbons, inEncyclopedia of Chemical Technology. Wiley-Interscience, New York.
- Fathepure, B. Z. and Boyd, S. A. (1988),Appl. Environ. Microbiol. 54 (12), 2976–2980.
- Bagley, D. M. and Gossett, J. M. (1990),Appl. Environ. Microbiol. 56, 2511–2516.
- DiStefano, T. D., Gossett, J. M., and Zinder, S. H. (1991),Appl. Environ. Microbiol. 57 (8), 2287–2292.
- Kastner, M. (1991),Appl. Environ. Microbiol. 57 (7), 2039–2046.
- Sewell, G. W. and Gibson, S. A. (1991),Environ. Sci. Technol. 25, 982–984. CrossRef
- DeBruin, W. P., Kotterman, M. J. J., Posthumus, M. A., Schraa, G., and Zehnder, A. J. B. (1992),Appl. Environ. Microbiol. 58 (6), 1996–2000.
- Narayanan, B., Suidan, M. T., Gelderloos, A. B., and Brenner, R. C. (1993),Water Res. 27 (1), 181–194. CrossRef
- Fathepure, B. Z., Nengu, J. P., and Boyd, S. A. (1987),Appl. Environ. Microbiol. 53 (11), 2671–2674.
- Gibson, S. A. and Sewell, G. W. (1992),Appl. Environ. Microbiol. 58 (4), 1392–1393.
- Freedman, D. L. and Gossett, J. M. (1989),Appl. Environ. Microbiol. 55 (9), 2144–2151.
- Guiot, S. R., Gorur, S. S., and Kennedy, K. J. (1988), Nutritional and Environmental Factors Contributing to Microbial Aggregation During Upflow Anaerobic Sludge Bed-Filter (UBF) Reactor Start-Up.Proceedings of the 5th International Symposium on Anaerobic Digestion, Bologna, Italy. Pergamon, New York.
- Perchloroethylene utilization by methanogenic fed-batch cultures
Applied Biochemistry and Biotechnology
Volume 57-58, Issue 1 , pp 895-904
- Cover Date
- Print ISSN
- Online ISSN
- Humana Press
- Additional Links
- reductive dechlorination
- Industry Sectors