Journal ArticleDOI
Use of gas push–pull tests for the measurement of methane oxidation in different landfill cover soils
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TLDR
The gas push-pull test (GPPT) is considered as a possible method to quantify oxidation rates in situ and does not require expensive equipment besides standard laboratory gas chromatographs to be simple in operation.About:
This article is published in Waste Management.The article was published on 2011-05-01. It has received 18 citations till now. The article focuses on the topics: Methane & Anaerobic oxidation of methane.read more
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Journal ArticleDOI
Above- and below-ground methane fluxes and methanotrophic activity in a landfill-cover soil.
TL;DR: On a section of a closed landfill near Liestal, Switzerland, experiments to compare CH(4) fluxes obtained by different methods at or above the cover-soil surface with below-ground fluxes are performed, and to link methanotrophic activity to estimates of CH( 4) ingress (loading) from the waste body at selected locations are performed.
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Improved quantification of microbial CH 4 oxidation efficiency in arctic wetland soils using carbon isotope fractionation
TL;DR: In this article, stable isotope signatures of CH 4 were measured and the fractionation factors for the processes of oxidation (α ox ) and diffusion (α diff ) were determined.
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Structure and function of methanotrophic communities in a landfill-cover soil
TL;DR: The findings indicate that Methylosarcina and closely related MOB are key players and that MOB abundance and community structure are driving factors in CH(4) oxidation at this landfill.
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Temporal variability of soil gas composition in landfill covers
TL;DR: It was shown that at diffusion-dominated sites complete methane oxidation was achieved even under adverse wintry conditions, whereas at hotspots, even under favorable dry and warm conditions, aerobic biological activity can be limited to the upper crust of the soil.
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Field-scale tracking of active methane-oxidizing communities in a landfill cover soil reveals spatial and seasonal variability
Ruth Henneberger,Eleonora Chiri,Paul E. L. Bodelier,Peter Frenzel,Claudia Lüke,Martin H. Schroth +5 more
TL;DR: It is proposed that high diversity of active MOB communities in this soil is promoted by high variability in environmental conditions, facilitating substantial removal of CH4 generated in the waste body.
References
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Carbon and hydrogen isotope systematics of bacterial formation and oxidation of methane
TL;DR: In this paper, the major dissolved carbon species in diagenetic settings are represented by the two carbon redox endmembers CH4 and CO2, and they can be tracked with the aid of carbon ( 13 C / 12 C ) and hydrogen ( D/H≡ 2 H/ 1 H ) isotopes.
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Climate Change 2007: Mitigation of Climate Change
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Microbial methane oxidation processes and technologies for mitigation of landfill gas emissions.
Charlotte Scheutz,Peter Kjeldsen,Jean E. Bogner,Alex De Visscher,Julia Gebert,Helene Hilger,Marion Huber-Humer,Kurt A. Spokas +7 more
TL;DR: Additional research and technology development is needed before methane mitigation technologies utilizing microbial methane oxidation processes can become commercially viable and widely deployed.
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Methane mass balance at three landfill sites: what is the efficiency of capture by gas collection systems?
Kurt A. Spokas,Jean E. Bogner,Jeffrey P. Chanton,M. Morcet,C. Aran,C. Graff,Y. Moreau-Le Golvan,I. Hebe +7 more
TL;DR: The overall methane mass balance in field cells with a variety of designs, cover materials, and gas management strategies was assessed, and defaults for percent recovery were used as the basis for guidelines by the French environment agency.
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Single‐Well, “Push‐Pull” Test for In Situ Determination of Microbial Activities
TL;DR: In this article, a single-well, push-pull test method is proposed for the in situ determination of microbial metabolic activities in ground-water aquifers, which consists of the pulse-type injection (push) of a test solution into the saturated zone of an aquifer through the screen of an existing monitoring well followed by the extraction (pull) of the test solution/ground-water mixture from the same well.