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Biogeosciences An interactive open-access journal of the European Geosciences Union
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BG | Volume 15, issue 14
Biogeosciences, 15, 4367–4380, 2018
https://doi.org/10.5194/bg-15-4367-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Biogeosciences, 15, 4367–4380, 2018
https://doi.org/10.5194/bg-15-4367-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 18 Jul 2018

Research article | 18 Jul 2018

Improving the strength of sandy soils via ureolytic CaCO3 solidification by Sporosarcina ureae

Justin Michael Whitaker et al.
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Cited articles  
Achal, V., Mukherjee, A., Basu, P. C., and Reddy, M. S.: Strain improvement of Sporosarcina pasteurii for enhanced urease and calcite production, J. Ind. Microbiol. iot., 36, 981–988, https://doi.org/10.1007/s10295-009-0578-z, 2009. 
Achal, V., Abhijit, M., and Reddy, M. S.: Characterization of Two Urease-Producing and Calcifying Bacillus spp. Isolated from Cement, J. Microbiol. Biotech., 20, 1571–1576, https://doi.org/10.4014/jmb.1006.06032, 2010. 
Addadi, L., Raz, S., and Weiner, S.: Taking Advantage of Disorder: Amorphous Calcium Carbonate and Its Roles in Biomineralization, Adv. Mater., 15, 959–970, https://doi.org/10.1002.adma.200300381, 2003. 
Al Qabany, A., Soga, K., and Santamarina, C.: Factors affecting efficiency of microbially induced calcite precipitation, J. Geotech. Geoenviron., 138, 992–1001, https://doi.org/10.1061/(ASCE)GT.1943-5606.0000666, 2012. 
Anthony, J. W., Bideaux, R. A., Bladh, K. W., and Nichols, M. C.: Borates, Carbonates, Sulfates, in: Handbook of Mineralogy, Chantilly, VA: Mineralogical Society of America, 5, available at: http://www.handbookofmineralogy.org (last access: May 2018), 2003. 
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Short summary
Materials, like soils or cements, can require repair. This study used a new bacterium (Sporosarcina ureae) in a repair method called "microbially induced carbonate precipitation" (MICP). In three trials, benefits were shown: S. ureae could make a model sandy soil much stronger by MICP, in fact better than a lot of other bacteria. However, MICP-treated samples got weaker in three trials of acid rain. In conclusion, S. ureae in MICP repair shows promise when used in appropriate climates.
Materials, like soils or cements, can require repair. This study used a new bacterium...
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