In situ biodegradation determined by carbon isotope fractionation of aromatic hydrocarbons in an anaerobic landfill leachate plume (Vejen, Denmark)

Journal of Contaminant Hydrology
Hans H RichnowThomas H Christensen


Concentrations and isotopic compositions (13C/12C) of aromatic hydrocarbons were determined in eight samples obtained from the strongly anoxic part of the leachate plume downgradient from the Vejen Landfill (Denmark), where methanogenic, sulfate-reducing and iron-reducing conditions were observed. Despite the heterogeneous distribution of the compounds in the plume, the isotope fractionation proved that ethylbenzene and m/p-xylene were subject to significant biodegradation within the strongly anoxic plume. The isotope fractionation factors (alphaC) for the degradation of the m/p-xylene (1.0015) and ethylbenzene (1.0021) obtained from the field observations were similar to factors previously determined for the anaerobic degradation of toluene and o-xylene in laboratory experiments, and suggest that in situ biodegradation is one major process controlling the fate of these contaminants in this aquifer. The isotope fractionation determined for 1,2,4-trimethylbenzene and 2-ethyltoluene suggested in situ biodegradation; however, the isotopic composition did not correlate well with the respective concentration as expressed by the Rayleigh equation. Some other compounds (1,2,3-trimethylbenzene, o-xylene, naphthalene and fenchone) did n...Continue Reading


Jan 1, 2013·Analytical and Bioanalytical Chemistry·Kathrin SchreglmannMartin Elsner
Oct 14, 2004·Applied Microbiology and Biotechnology·Herman J HeipieperHans Hermann Richnow
Feb 23, 2010·Applied Microbiology and Biotechnology·Petra BombachAnko Fischer
Aug 26, 2003·Journal of Contaminant Hydrology·Anders BaunPoul L Bjerg
Jul 10, 2003·Current Opinion in Biotechnology·Barth F Smets, P H Pritchard
Jun 4, 2005·Applied and Environmental Microbiology·Michael K JahnRainer U Meckenstock
Jun 15, 2007·Arhiv za higijenu rada i toksikologiju·Nada Miljević, Dusan Golobocanin
Feb 9, 2016·Environmental Science & Technology·Steffen KümmelCarsten Vogt
Aug 28, 2009·Ground Water·Poul L BjergPeter Kjeldsen
Jul 7, 2014·Chemosphere·Langping WuHans H Richnow
Feb 3, 2005·Environmental Toxicology and Chemistry·Andrea ViethHans H Richnow
Dec 22, 2004·Journal of Contaminant Hydrology·Rainer U MeckenstockHans H Richnow
Jul 1, 2004·FEMS Microbiology Ecology·Rainer U MeckenstockChristian Griebler
Feb 23, 2019·International Journal of Environmental Research and Public Health·Thomas FichtnerChristina Dornack
Nov 27, 2008·Environmental Science & Technology·Carsten VogtAnko Fischer
Feb 24, 2018·Environmental Science & Technology·Marion L ChevallierLorenz Adrian
Mar 30, 2006·Environmental Science & Technology·Yumiko Abe, Daniel Hunkeler
Oct 6, 2005·Environmental Science & Technology·Martin ElsnerRene P Schwarzenbach

❮ Previous
Next ❯

Related Concepts

Related Feeds

Bioremediation (ASM)

Bioremediation is the treatment and removal of harmful pollutants or contaminants through the use of microorganisms. Discover the latest research here.