Successful microcosm demonstration of a strategy for biodegradation of a mixture of carbon tetrachloride and perchloroethene harnessing sulfate reducing and dehalorespiring bacteria

Koenig, Joanna; Lee, Matthew J.; Manefield, Mike

doi:10.1016/j.jhazmat.2012.03.076

Cited by 16 publications

(8 citation statements)

References 57 publications

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“…All live-cultures showed significant decrease of CT along the incubation, but the addition of vitamin B 12 accelerated considerably the biodegradation of CT and CF with consequent accumulation of high amounts of CS 2 as observed by Koenig et al (2012) and no apparent accumulation of other chlorinated intermediates (DCM). Pure CT abiotic reactions with present minerals were discarded in killed controls.…”

Section: Aig10 -2013mentioning

confidence: 87%

10th Applied Isotope Geochemistry Conference

2013

Central European Geology

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In the current work a new method to extract and analyse pore water d 2 H and d 18O from drill core samples via H 2 O (liquid) -H 2 O (vapour) equilibrium laser spectroscopy is presented. The method combines a H 2 O (liquid) -H 2 O (vapour) equilibrium cell with a Los Gatos Research (LGR) cavity ring down mass spectrometer (CRDS) and follows and adaption of the original method presented by Wassenaar et al. (2008). Sediment and rock samples taken from a research site in New South Wales, Australia were first equilibrated in a fixed volume of dehumidified air and then directly sampled by the LGR mass spectrometer. Results provide clear evidence that the technique is repeatable and can be conducted on geologic media that contain volumetric water content as low as 5%, with H 2 O (liquid) -H 2 O (vapour) equilibrium occurring over time periods as short as 120 minutes. The faster sample analysis time and lower associated consumable and instrumentation costs of the method compared to conventional techniques for pore water extraction (centrifugation, squeezing, installation of monitoring bores, etc.) and analysis therefore presents great potential for field deployment, enabling hydrogeological profiling without the need to remove drill core samples from site. (vapour) equilibrium laser spectroscopy. Environ. Sci. Technol., 42, pp. 9262-9267, 2008. 1788-2281/$20.00 © 2013 Akadémiai Kiadó, Budapest Central European Geology, Vol. 56/2-3, pp. 1-280 (2013 DOI: 10.1556/CEuGeol.56.2013 -ORIGIN OF NATURAL GAS-FED "ETERNAL FLAMES" IN THE NORTHERN APPALACHIAN BASIN, USAArndt Schimmelmann 1 -Giuseppe Etiope 2 -Agnieszka Drobniak 3 1 Department of Geological Sciences, Indiana University, Bloomington, Indiana, USA; e-mail: aschimme@indiana.edu 2 Istituto Nazionale di Geofisica e Vulcanologia, Roma, Italy, and Faculty of Environmental Science and Engineering, Babes-Bolyai University, Cluj-Napoca, Romania 3 Indiana Geological Survey, Indiana University, Bloomington, Indiana, USA Natural hydrocarbon gas seeps are surface expressions of petroleum seepage systems, where gas ascends through faults and conduits from pressurized reservoirs that are typically associated with conventional reservoirs in sandstones or limestones. These rare natural gas seeps provide opportunities for direct sampling of gas from subsurface hydrocarbon accumulations without the need for drilling or other costly means of petroleum exploration.We have documented a site in the northern Appalachian Basin, at Chestnut Ridge County Park, New York (Fig. 1, left), where gas seepage has supported a spectacular "eternal flame" throughout available recorded history, and which may have burnt naturally for many hundreds or even thousands of years. This remarkable flame marks a natural gas macroseep of dominantly thermogenic origin. Gas emanates directly from deep shale source rocks, probably the Rhinestreet Shale of the Upper Devonian West Falls Group, which makes this a rare case in contrast to most petroleum seepage systems where gas derives from conventional reservo...

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Section: Aig10 -2013mentioning

confidence: 87%

10th Applied Isotope Geochemistry Conference

2013

Central European Geology

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“…The fate of CAHs in bacterial cultures was checked by gas chromatography and flame ionization detection (GC-FID) as described elsewhere ( 33 ). The CAHs were never utilized as carbon sources by the bacteria and remained stable.…”

Section: Methodsmentioning

confidence: 99%

Tolerance of Anaerobic Bacteria to Chlorinated Solvents

2014

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The aim of this research was to evaluate the effects of four chlorinated aliphatic hydrocarbons (CAHs), perchloroethene (PCE), carbon tetrachloride (CT), chloroform (CF) and 1,2-dichloroethane (1,2-DCA), on the growth of eight anaerobic bacteria: four fermentative species (Escherichia coli, Klebsiella sp., Clostridium sp. and Paenibacillus sp.) and four respiring species (Pseudomonas aeruginosa, Geobacter sulfurreducens, Shewanella oneidensis and Desulfovibrio vulgaris). Effective concentrations of solvents which inhibited growth rates by 50% (EC50) were determined. The octanol-water partition coefficient or log Po/w of a CAH proved a generally satisfactory measure of its toxicity. Most species tolerated approximately 3-fold and 10-fold higher concentrations of the two relatively more polar CAHs CF and 1,2-DCA, respectively, than the two relatively less polar compounds PCE and CT. EC50 values correlated well with growth rates observed in solvent-free cultures, with fast-growing organisms displaying higher tolerance levels. Overall, fermentative bacteria were more tolerant to CAHs than respiring species, with iron- and sulfate-reducing bacteria in particular appearing highly sensitive to CAHs. These data extend the current understanding of the impact of CAHs on a range of anaerobic bacteria, which will benefit the field of bioremediation.

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“…CT is dechlorinated under anaerobic conditions, and this process is mediated by cofactors such as corrinoid ( 93 ), coenzyme F430 ( 92 ), iron compounds ( 147 ), cytochromes ( 29 ), and humic substances ( 114 ). Under sulfate-reducing conditions, CT is mainly degraded to CS 2 with the cofactor vitamin B 12 , a type of corrinoid, while it is degraded to CF in the absence of vitamin B 12 ( 87 ). The dechlorination of CF to DCM occurs with or without growth.…”

Section: Biodegradation Of Chlorinated Methanesmentioning

confidence: 99%

Biodegradation of Volatile Organic Compounds and Their Effects on Biodegradability under Co-Existing Conditions

Yoshikawa

Zhang

Toyota

2017

Microbes and environments

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Volatile organic compounds (VOCs) are major pollutants that are found in contaminated sites, particularly in developed countries such as Japan. Various microorganisms that degrade individual VOCs have been reported, and genomic information related to their phylogenetic classification and VOC-degrading enzymes is available. However, the biodegradation of multiple VOCs remains a challenging issue. Practical sites, such as chemical factories, research facilities, and illegal dumping sites, are often contaminated with multiple VOCs. In order to investigate the potential of biodegrading multiple VOCs, we initially reviewed the biodegradation of individual VOCs. VOCs include chlorinated ethenes (tetrachloroethene, trichloroethene, dichloroethene, and vinyl chloride), BTEX (benzene, toluene, ethylbenzene, and xylene), and chlorinated methanes (carbon tetrachloride, chloroform, and dichloromethane). We also summarized essential information on the biodegradation of each kind of VOC under aerobic and anaerobic conditions, together with the microorganisms that are involved in VOC-degrading pathways. Interactions among multiple VOCs were then discussed based on concrete examples. Under conditions in which multiple VOCs co-exist, the biodegradation of a VOC may be constrained, enhanced, and/or unaffected by other compounds. Co-metabolism may enhance the degradation of other VOCs. In contrast, constraints are imposed by the toxicity of co-existing VOCs and their by-products, catabolite repression, or competition between VOC-degrading enzymes. This review provides fundamental, but systematic information for designing strategies for the bioremediation of multiple VOCs, as well as information on the role of key microorganisms that degrade VOCs.

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Successful microcosm demonstration of a strategy for biodegradation of a mixture of carbon tetrachloride and perchloroethene harnessing sulfate reducing and dehalorespiring bacteria

Cited by 16 publications

References 57 publications

10th Applied Isotope Geochemistry Conference

10th Applied Isotope Geochemistry Conference

Tolerance of Anaerobic Bacteria to Chlorinated Solvents

Biodegradation of Volatile Organic Compounds and Their Effects on Biodegradability under Co-Existing Conditions

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