NMR relaxation measurements of biofouling in model and geological porous media
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2011-09
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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 lm 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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Codd SL, Vogt SJ, Hornemann JA, Phillips AJ, Maneval JE, Romanenko KR, Hansen L, Cunningham AB, Seymour JD, "NMR relaxation measurements of biofouling in model and geological porous media," Organic Geochemistry, September 2011 42(8):965–971