Magnetic resonance microscopy of biofouling induced scale dependent transport in porous media

dc.contributor.authorSeymour, Joseph D.
dc.contributor.authorGage, Justin P.
dc.contributor.authorCodd, Sarah L.
dc.contributor.authorGerlach, Robin
dc.date.accessioned2017-07-13T21:51:04Z
dc.date.available2017-07-13T21:51:04Z
dc.date.issued2007-06
dc.description.abstractNon-invasive magnetic resonance microscopy (MRM) methods are applied to study biofouling of a homogeneous model porous media. MRM of the biofilm biomass using magnetic relaxation weighting shows the heterogeneous nature of the spatial distribution of the biomass as a function of growth. Spatially resolved MRM velocity maps indicate a strong variation in the pore scale velocity as a function of biofilm growth. The hydrodynamic dispersion dynamics for flow through the porous media is quantitatively characterized using a pulsed gradient spin echo technique to measure the propagator of the motion. The propagator indicates a transition in transport dynamics from a Gaussian normal diffusion process following a normal advection diffusion equation to anomalous transport as a function of biofilm growth. Continuous time random walk models resulting in a time fractional advection diffusion equation are shown to model the transition from normal to anomalous transport in the context of a conceptual model for the biofouling. The initially homogeneous porous media is transformed into a more complex heterogeneous porous media by the biofilm growth.en_US
dc.identifier.citationSeymour JD, Gage JP, Codd SL, Gerlach R, "Magnetic resonance microscopy of biofouling induced scale dependent transport in porous media," Adv Water Resour 2007 30(6-7):1408-1420en_US
dc.identifier.issn0309-1708
dc.identifier.urihttps://scholarworks.montana.edu/handle/1/13274
dc.titleMagnetic resonance microscopy of biofouling induced scale dependent transport in porous mediaen_US
dc.typeArticleen_US
mus.citation.extentfirstpage1408en_US
mus.citation.extentlastpage1420en_US
mus.citation.issue6-7en_US
mus.citation.journaltitleAdvances in Water Resourcesen_US
mus.citation.volume30en_US
mus.data.thumbpage1414en_US
mus.identifier.categoryEngineering & Computer Scienceen_US
mus.identifier.doi10.1016/j.advwatres.2006.05.029en_US
mus.relation.collegeCollege of Engineeringen_US
mus.relation.departmentCenter for Biofilm Engineering.en_US
mus.relation.departmentChemical & Biological Engineering.en_US
mus.relation.departmentChemical Engineering.en_US
mus.relation.researchgroupCenter for Biofilm Engineering.en_US
mus.relation.universityMontana State University - Bozemanen_US

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