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NMR relaxation measurements of biofouling in model and geological porous media |
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| Authors: | Sarah L Codd Sarah J Vogt Jennifer A Hornemann Adrienne J PhillipsJames E Maneval Konstantin R Romanenko Logan HansenAlfred B Cunningham Joseph D Seymour |
| Institution: | a Department of Mechanical and Industrial Engineering, Montana State University, Bozeman, MT 59717, United States b Department of Chemical and Biological Engineering, Montana State University, Bozeman, MT 59717, United States c Center for Biofilm Engineering Montana State University, Bozeman, MT 59717, United States d Department of Chemical Engineering, Bucknell University, Lewisburg, PA 17837, United States e Department of Earth Sciences, Montana State University, Bozeman, MT 59717, United States |
| Abstract: | Recently 2D nuclear magnetic resonance (NMR) relaxation techniques have been able to access changes in pore structures through surface and diffusion based relaxation measurements. This research investigates the applicability of these methods for measuring pore and surface changes due to biofilm growth in various model porous systems and natural geological media. Model bead packs of various construction containing 100 μm borosilicate and soda lime glass beads were used to demonstrate how changes in the measured relaxation rates can be used to non-invasively verify and quantify biofilm growth in porous media. However significant challenges are shown to arise when trying to implement the same techniques to verify biofilm growth in a natural geological media. |
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