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landfill gas generation

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Radius of influence as a function of the <span class="search-highlight">landfill</span> <span class="search-highlight">gas</span> <span class="search-highlight">generation</span> rate for f...
Published: 01 August 2004
Fig. 6. Radius of influence as a function of the landfill gas generation rate for five model thicknesses and three pumping suctions applied to the recovery well.
Journal Article
Published: 01 August 2004
Vadose Zone Journal (2004) 3 (3): 909–916.
...Fig. 6. Radius of influence as a function of the landfill gas generation rate for five model thicknesses and three pumping suctions applied to the recovery well. ...
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<span class="search-highlight">Gas</span> <span class="search-highlight">generation</span> rate in the Montreal <span class="search-highlight">landfill</span> ( Nastev, 1998 ).
Published: 01 August 2004
Fig. 1. Gas generation rate in the Montreal landfill ( Nastev, 1998 ).
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A natural cover layer over the Reichs Ford Road <span class="search-highlight">landfill</span> site, Frederick, M...
Published: 01 December 2010
F igure 6 A natural cover layer over the Reichs Ford Road landfill site, Frederick, Maryland, USA ( www.frederickcountymd.gov/index.aspx?NID=530 , accessed November 11, 2010). The tap in the foreground is part of the system for monitoring and releasing any gas that builds up in the landfill
Journal Article
Published: 01 February 2000
Environmental & Engineering Geoscience (2000) 6 (1): 71–84.
.... Time-dependent heat and gas generated in the landfill through the decomposition of organic waste provide the main driving forces for vapor phase migration. We show that the magnitude of vapor phase migration is primarily controlled by gas generation source strength. Increased temperature has...
Journal Article
Published: 01 August 2015
Vadose Zone Journal (2015) 14 (8): vzj2014.12.0180.
... Conference on Soil Mechanics and Geotechnical Engineering, Paris. 2–6 Sept. 2013 . Vol. 1 . Int. Soc. Soil Mech. Geotech. Eng. , London . p. 3009 – 3012 . Christensen T.H. Kjeldsen P. Lindhardt B. . 1996 . Gas-generating processes in landfills . In: Christensen T.H. ., editors...
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Volumetric fraction of CH 4 , CH 4  mass flow rate, and total <span class="search-highlight">landfill</span> <span class="search-highlight">gas</span> ...
Published: 01 August 2004
Fig. 8. Volumetric fraction of CH 4 , CH 4 mass flow rate, and total landfill gas flow rate in the well vs. the generation rate of landfill gas in the waste for three suctions applied to the recovery well and a 40-m waste thickness.
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Volumetric fraction of CH 4 , CH 4  mass flow rate, and total <span class="search-highlight">landfill</span> <span class="search-highlight">gas</span> ...
Published: 01 August 2004
Fig. 7. Volumetric fraction of CH 4 , CH 4 mass flow rate, and total landfill gas flow rate in the well vs. the generation rate of landfill gas in the waste for three suctions applied to the recovery well and a 20-m waste thickness.
Journal Article
Published: 01 June 1997
Environmental Geosciences (1997) 4 (2): 85–94.
... generated in municipal landfills and those produced from gas wells and coals in western Pennsylvania help to identify sources of stray methane while investigating gas migration incidents. Landfill gases exhibit C1/(C2+C3) ratios >3.8X10 3 , delta 13 CO 2 values of -19.7 to + 17.4 per mil, delta DCH 4...
Journal Article
Published: 01 October 2001
Mineralogical Magazine (2001) 65 (5): 603–610.
... (1998) and Manning (1997) . The management of landfill gas focuses on its recovery, for the generation of energy, its safe dispersal, or combustion. Routine monitoring is carried out to establish whether or not gas is being produced and to determine the composition of the gas. One key factor...
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Series: Engineering Geology Special Publications
Published: 09 June 2020
DOI: 10.1144/EGSP29.19
EISBN: 9781786204653
... of putrescible materials. Wide variations in concentration can occur over the life of a landfill site. Methane concentrations around 65% are typical during the maximum gas generation phase but will reduce as gas generation reduces and oxygen diffuses back into the landfill. It also depends on the nature...
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Journal Article
Journal: AAPG Bulletin
Published: 01 February 1985
AAPG Bulletin (1985) 69 (2): 245.
... generated methane, and therefore detection of hydrocarbons is not sufficient to determine the source of the gas. Although microbial gas can frequently be distinguished from thermogenic gases by the absence of ethane and heavier hydrocarbons, migration through hundreds or thousands of feet of porous...
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<span class="search-highlight">Generalized</span> decomposition pathways for the dominant components of municipal...
Published: 01 January 2000
Fig. 2. Generalized decomposition pathways for the dominant components of municipal waste, emphasizing the role of leachate as an intermediate stage in the production of landfill gas and as a sink for ammonia as ammonium (based on Department of the Environment 1989).
Journal Article
Journal: Geophysics
Published: 10 May 2024
Geophysics (2024) 89 (4): E151–E164.
... such as recycling, composting, and waste-to-energy facilities ( Babu and Lakshmikanthan, 2015 ; Miao et al., 2019 ). Landfills face numerous challenges, including the drainage and treatment of leachate ( Fellner et al., 2009 ), the direct release of greenhouse gas emissions ( Chiemchaisri et al., 2007...
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Journal Article
Published: 15 June 2022
Quarterly Journal of Engineering Geology and Hydrogeology (2022) 55 (4): qjegh2021-166.
... Europe, the United States of America and Australia. NSZD has been described as the ‘combination of processes that reduce the mass of LNAPL light non-aqueous phase liquid) in the subsurface’. LNAPL NSZD research and investigations have been focused on a range of hydrocarbon products, such as gasoline...
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Journal Article
Published: 17 October 2018
Quarterly Journal of Engineering Geology and Hydrogeology (2019) 52 (1): 110–122.
... of London. All rights reserved 2018 © 2018 The Author(s) Biological decomposition of organic waste at municipal landfill sites generates landfill gas, typically 60% v/v methane (CH 4 ) and 40% v/v carbon dioxide (CO 2 ) ( Farquhar & Rovers 1973 ; Hooker & Bannon 1993 ; Kjeldsen et al...
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Series: GSA Field Guide
Published: 01 January 2002
DOI: 10.1130/0-8137-0003-5.1
EISBN: 9780813756035
..., but access to the natural resources we all use, from sand and gravel pits to water resources to oil and gas wells to large open-pit mines, may be local issues as well. Landfills and other waste-disposal sites also have both geologic and public-policy consequences. As a society, we can either plan...
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Journal Article
Journal: Geophysics
Published: 07 September 2016
Geophysics (2016) 81 (6): EN75–EN86.
... the seismic velocity fields, is important in the interpretation of wet and gassy (relatively dry, gas/air-filled) zones within the landfill. A landfill differs from natural soil. A heterogeneous landfill typically contains a distribution of relatively stiff and soft zones. The stiffer zones generally...
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Journal Article
Published: 01 February 2012
Quarterly Journal of Engineering Geology and Hydrogeology (2012) 45 (1): 45–60.
... degradable waste becomes fully methanogenic in a matter of months and so, after a short initial period, leachate metal concentrations are generally low. Monitoring results for the Oxford Clay sites indicate that trace metals are present within landfill leachates at relatively low average concentrations (e.g...
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Journal Article
Published: 01 May 2010
Quarterly Journal of Engineering Geology and Hydrogeology (2010) 43 (2): 131–139.
...P. Coombs; D. Wagner; K. Bateman; H. Harrison; A.E. Milodowski; D. Noy; J.M. West Abstract Abstract Landfill and radioactive waste disposal risk assessments focus on contaminant transport and are principally concerned with understanding the movement of gas, water and solutes through engineered...
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