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Comparison of microbiological influences on the transport properties of intact mudstone and sandstone and its relevance to the geological disposal of radioactive waste

Published online by Cambridge University Press:  05 July 2018

J. Wragg ,
H. Harrison ,
J. M. West  and
H. Yoshikawa
J. Wragg
Affiliation:
British Geological Survey, Keyworth, Nottingham NG12 5GG, UK
H. Harrison*
Affiliation:
British Geological Survey, Keyworth, Nottingham NG12 5GG, UK
J. M. West
Affiliation:
British Geological Survey, Keyworth, Nottingham NG12 5GG, UK
H. Yoshikawa
Affiliation:
Japan Atomic Energy Agency (JAEA), Muramatsu 4-33, Tokai-mura, 319-1194 Ibaraki, Japan
*
*E-mail: hmh@bgs.ac.uk
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Abstract

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The role of the microbial activity on the transport properties of host rocks for geological repositories, particularly in the far-field, is an area of active research. This paper compares results from experiments investigating changes in transport properties caused by microbial activity in sedimentary rocks in Japan (mudstones) and sandstone (UK).

These experiments show that both Pseudomonas denitrificans and Pseudomonas aeruginosa appear to survive and thrive in pressurized flow-through column experiments which utilized host rock materials of relevance to radioactive waste disposal. Indeed, despite there being a difference in the numbers of organisms introduced into both biotic experiments, numbers appear to stabilize at ∼105 ml−1 at their completion. Post experimental imaging has highlighted the distinct differences in biofilm morphology, for the chosen rock types and bacteria, with Pseudomonas aeruginosa derived biofilms completely covering the surface of the sandstone host and Pseudomonas denitrificans forming biofilament structures. Regardless of substrate host or choice of microbe, microbial activity results in measurable changes in permeability. Such activity appears to influence changes in fluid flow and suggests that the transport of radionuclides through the far-field will be complicated by the presence of microbes.

Keywords

biofilm growthgeological disposalmudstonepseudomonasradioactive wastesandstonetransport properties
Type
Research Article
Information
Mineralogical Magazine , Volume 76 , Issue 8 , December 2012 , pp. 3251 - 3259
Creative Commons
Creative Common License - CCCreative Common License - BY
© [2012] The Mineralogical Society of Great Britain and Ireland. This is an open access article distributed under the terms of the Creative Commons Attribution (CC BY) licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2012

References

Harrison, H., West, J.M., Milodowski, A.E., Bateman, K., Coombs, P., Harrington, J., Holyoake, S., Lacinska, A., Turner, G. and Wagner, D. (2010) Microbial Influences on Fracture Surfaces of Intact Horonobe Mudstone. BioTran Progress Report Sept 2009 - January 2010. British Geological Survey Report OR/10/067.Google Scholar
Harrison, H., Wagner, D., Yoshikawa, H., West, J.M., Milodowski, A.E., Sasaki, Y., Turner, G., Lacinska, A., Holyoake, S., Harrington, J., Noy, D., Coombs, P., Bateman, K. and Aoki, K. (2011) Microbiological influences on fracture surfaces of intact mudstone and the implications for geological disposal of radioactive waste. Mineralogical Magazine, 75, 2449–246.CrossRefGoogle Scholar
Milodowski, A.E., Barnes, R.P., Bouch, J., Kemp, S.J. and Wagner, D. (2004) Characterisation of Fractured Rock and Fracture Mineralisation in Horonobe Boreholes HDB-6, HDB-7 and HDB-8: Final Report. British Geological Survey Report, CR/04/251.Google Scholar
Milodowski, A.E. and Rushton, J.C. (2008) Mineralogical and Porosity Characterisation of Potential Aquifer and Seal Units for Carbon Capture and Storage Methodologies for the CASSEM Project. British Geological Survey Research Report, CR/08/153.Google Scholar
Schmidt, V. and McDonald, D.A. (1979) Texture recognition of secondary porosity in sandstones. Pp. 209–225.in: Aspects of Diagenesis ( P.A Scholle and P.R. Schugler, editors). Society of Economic Paleontologists and Mineralogists Special Publication, 26. Society of Economic Paleontologists and Mineralogists, Tulsa, Oklahoma, USA.Google Scholar
Tochigi, Y., Yoshikawa, H. and Yui, M. (2007) Modeling studies on microbial effects on groundwater chemistry. Scientific Basis for Nuclear Waste Management, 985, 575–580.Google Scholar
Vaughan, D.J., Wogelius, R.A., Boult, S. and Merrifield, C. (2001) Quantifying the effects of Biofilm Growth on Hydraulic Properties and on Sorption Equilibrium Microscopic to Macroscopic Measurements. Progress summary 02/01–1101. Williamson Research Centre, University of Manchester, Manchester, UK.Google Scholar
West, J.M. and McKinley, I.G. (2002) The geomicrobiology of radioactive waste disposal. Pp. 2661–2674.i n : The Encyc lopa edia o f Environmental Microbiology (G. Bitton, editor). John Wiley, New York.Google Scholar
West, J.M., McKinley, I.G. and Stroes-Gascoyne, S. (2002) Microbial effects on waste repository material. Pp. 255–277.in: Interactions of Microorganisams with Radionuclides (M.J. Keith-Roach, and F.R. Livens, editors) Elsevier, Oxford, UK.Google Scholar
West, J.M., Bateman, K., Coombs, P., Harrison, H.M., Holyoake, S., Milodowski, A.E., Rushton, J.C., Turner, G., Wagner, D. and Wragg, J. (2011) Microbiological Effects on Transport Processes (BioTran) - Data Production from Column Experiments Containing Sherwood Sandstone. British Geological Survey Report OR/11/058.Google Scholar