Show simple document record

dc.contributor.authorAhou Ghalandari, Baharfr
dc.contributor.authorCabral, Alexandrefr
dc.contributor.otherLeroueil, Sergefr
dc.date.accessioned2020-05-26T17:28:49Z
dc.date.available2020-05-26T17:28:49Z
dc.date.created2018fr
dc.date.issued2020-05-26
dc.identifier.urihttp://hdl.handle.net/11143/17080
dc.description.abstractAbstract: Passive methane oxidation biosystems (PMOBs) are often proposed as a means to reduce fugitive landfill CH4 emissions, i.e. emissions not captured by gas collection systems. However, current designs may lead to the formation of a capillary barrier along the interface between the two main layers constituting passive biosystems, namely the methane oxidation layer and gas distribution layer. The formation of a capillary barrier may result in restricted upward flow of biogas at the base of methane oxidation layer, thereby leading to concentrated biogas emissions in regions known as hotpots, where passive oxidation of biotic methane is failing, if not absent. In this study, design criteria are introduced to assess the ease of biogas flow across the gas distribution-methane oxidation layers’ interface. Laboratory experiments were conducted to obtain the water retention curve, air permeability function and line of optima (on Standard Proctor curve) of the materials used to construct the methane oxidation layer of two experimental PMOBs at the St-Nicephore (Quebec, Canada) landfill. In addition, the main characteristics for other materials were obtained from the literature. Design criteria were then defined based on the degree of water saturation at the lines of optima and the pattern of air permeability functions and water retention curves. Considering these criteria in the design of PMOBs is fundamental to reduce the risk of creating hotspots when implementing PMOBs.fr
dc.language.isoengfr
dc.relation.isformatofhttps://doi.org/10.1007/s10706-018-0485-zfr
dc.relation.ispartofISSN:1573-1529fr
dc.relation.ispartofGeotechnical and Geological Engineeringfr
dc.subjectPassive methane oxidation biosystemsfr
dc.subjectGas flow behaviourfr
dc.subjectCapillary barrier effectfr
dc.subjectWater retention curvefr
dc.subjectStandard proctor curvefr
dc.titleElements of design of passive methane oxidation biosystems: Fundamental and practical considerations about compaction and hydraulic characteristics on biogas migrationfr
dc.typeArticlefr
dc.rights.holder© Springerfr
udes.description.typestatusPost-publicationfr
udes.description.typepubRévisé et accepté par des pairsfr
udes.description.pages2593-2609fr
udes.description.period36(4)fr
udes.description.diffusionDiffusé par Savoirs UdeS, le dépôt institutionnel de l'Université de Sherbrookefr
dc.identifier.bibliographicCitationAhoughalandari, B., Cabral, A. R., Leroueil, S. (sous presse). (2018). Elements of design of passive methane oxidation biosystems: Fundamental and practical considerations about compaction and hydraulic characteristics on biogas migration. "Geotechnical and Geological Engineering", 36(4), 2593-2609. https://doi.org/10.1007/s10706-018-0485-zfr
udes.description.sourceGeotechnical and Geological Engineeringfr
udes.autorisation.depottruefr
udes.description.ordreauteursAhou Ghalandari, Bahar; Cabral, Alexandre; Leroueil, Sergefr


Files in this document

Thumbnail

This document appears in the following Collection(s)

Show simple document record