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Experimental study of foam propagation and stability in highly permeable porous media under lateral water flow: Diverting groundwater for application to soil remediation

dc.rights.licenseopenen_US
dc.contributor.authorDAVARZANI, Hossein
dc.contributor.authorARANDA, Romain
dc.contributor.authorCOLOMBANO, Stéfan
dc.contributor.authorLAURENT, Fabien
hal.structure.identifierInstitut de Mécanique et d'Ingénierie [I2M]
dc.contributor.authorBERTIN, Henri
IDREF: 069375607
dc.date.accessioned2021-12-21T10:11:24Z
dc.date.available2021-12-21T10:11:24Z
dc.date.issued2021-12-01
dc.identifier.issn0169-7722en_US
dc.identifier.urioai:crossref.org:10.1016/j.jconhyd.2021.103917
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/124280
dc.description.abstractEnFoam propagation and stability in highly permeable porous media, encountered in soil pollution applications, are still challenging. Here, we investigated the application of foam for blocking the aquifer to divert the flow from a contaminated zone and, therefore, ease the remediation treatments. The main aim was to better understand the critical parameters when the foam is injected into a highly permeable aquifer with high groundwater flow velocity (up to 10 m/day). A decimetric-scale 2D tank experimental setup filled with 1 mm glass beads was used. The front part of the 2D tank was made of transparent glass to photograph the foam flow using the light-reflected method. The water flow was generated horizontally through injection and pumping points on the sides of the tank. The pre-generated foam was injected at the bottom center of the tank. Water streamlines (using dye tracing) and water saturation were investigated using image interpretation. Results show that 100% of the water flow was diverted during the injection of the foam. Foam stability in porous media depends significantly on the horizontal water flow rate. Recirculating water containing the surfactant increases foam stability. The main mechanism of destruction was identified as the dilution of the surfactant in water. However, the head-loss measurements showed that despite foam destruction, the relative permeability of the water phase in the media remained quite low. Injection of foam increases the radius of gas propagation, thanks to foam's high viscosity, compared to a pure gas injection case. These results are new highlights on the efficiency of foam as a blocking agent, showing that it can also serve as a means for gas transport more efficiently in porous media, especially for soil remediation applications.
dc.language.isoENen_US
dc.sourcecrossref
dc.subject.en2D tank
dc.subject.enFoam
dc.subject.enHigh permeability
dc.subject.enSaturated zone
dc.subject.enSoil pollution
dc.title.enExperimental study of foam propagation and stability in highly permeable porous media under lateral water flow: Diverting groundwater for application to soil remediation
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.jconhyd.2021.103917en_US
dc.subject.halSciences de l'ingénieur [physics]/Autreen_US
bordeaux.journalJournal of Contaminant Hydrologyen_US
bordeaux.page103917en_US
bordeaux.volume243en_US
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionBordeaux INPen_US
bordeaux.institutionCNRSen_US
bordeaux.institutionINRAEen_US
bordeaux.institutionArts et Métiersen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcedissemin
hal.identifierhal-03498840
hal.version1
hal.date.transferred2021-12-21T10:11:26Z
hal.exporttrue
workflow.import.sourcedissemin
dc.rights.ccPas de Licence CCen_US
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