PMID- 21624021
OWN - NLM
STAT- MEDLINE
DCOM- 20111103
LR  - 20181201
IS  - 1365-2672 (Electronic)
IS  - 1364-5072 (Linking)
VI  - 111
IP  - 2
DP  - 2011 Aug
TI  - Effects of environmental factors on microbial induced calcium carbonate 
      precipitation.
PG  - 338-49
LID - 10.1111/j.1365-2672.2011.05065.x [doi]
AB  - AIMS: To gain an understanding of the environmental factors that affect the 
      growth of the bacterium Sporosarcina pasteurii, the metabolism of the bacterium 
      and the calcium carbonate precipitation induced by this bacterium to optimally 
      implement the biological treatment process, microbial induced calcium carbonate 
      precipitation (MICP), in situ. METHODS AND RESULTS: Soil column and batch tests 
      were used to assess the effect of likely subsurface environmental factors on the 
      MICP treatment process. Microbial growth and mineral precipitation were evaluated 
      in freshwater and seawater. Environmental conditions that may influence the 
      ureolytic activity of the bacteria, such as ammonium concentration and oxygen 
      availability, as well as the ureolytic activities of viable and lysed cells were 
      assessed. Treatment formulation and injection rate, as well as soil particle 
      characteristics are other factors that were evaluated for impact on uniform 
      induction of cementation within the soils. CONCLUSIONS: The results of the study 
      presented herein indicate that the biological treatment process is equally robust 
      over a wide range of soil types, concentrations of ammonium chloride and 
      salinities ranging from distilled water to full seawater; on the time scale of an 
      hour, it is not diminished by the absence of oxygen or lysis of cells containing 
      the urease enzyme. SIGNIFICANCE AND IMPACT OF STUDY: This study advances the 
      biological treatment process MICP towards field implementation by addressing key 
      environmental hurdles faced with during the upscaling process.
CI  - (c) 2011 The Authors. Journal of Applied Microbiology (c) 2011 The Society for 
      Applied Microbiology.
FAU - Mortensen, B M
AU  - Mortensen BM
AD  - Department of Civil and Environmental Engineering, University of California, 
      Davis, CA 95616, USA. bmmortensen@ucdavis.edu
FAU - Haber, M J
AU  - Haber MJ
FAU - DeJong, J T
AU  - DeJong JT
FAU - Caslake, L F
AU  - Caslake LF
FAU - Nelson, D C
AU  - Nelson DC
LA  - eng
PT  - Journal Article
PT  - Research Support, U.S. Gov't, Non-P.H.S.
DEP - 20110630
PL  - England
TA  - J Appl Microbiol
JT  - Journal of applied microbiology
JID - 9706280
RN  - 0 (Culture Media)
RN  - 0 (Soil)
RN  - 8W8T17847W (Urea)
RN  - EC 3.5.1.5 (Urease)
RN  - H0G9379FGK (Calcium Carbonate)
SB  - IM
MH  - Calcium Carbonate/*chemistry
MH  - Chemical Precipitation
MH  - Culture Media/chemistry
MH  - Fresh Water/chemistry/microbiology
MH  - Seawater/chemistry/microbiology
MH  - Soil/chemistry
MH  - *Soil Microbiology
MH  - Sporosarcina/*growth & development/metabolism
MH  - Urea/analysis
MH  - Urease/metabolism
EDAT- 2011/06/01 06:00
MHDA- 2011/11/04 06:00
CRDT- 2011/06/01 06:00
PHST- 2011/06/01 06:00 [entrez]
PHST- 2011/06/01 06:00 [pubmed]
PHST- 2011/11/04 06:00 [medline]
AID - 10.1111/j.1365-2672.2011.05065.x [doi]
PST - ppublish
SO  - J Appl Microbiol. 2011 Aug;111(2):338-49. doi: 10.1111/j.1365-2672.2011.05065.x. 
      Epub 2011 Jun 30.