PMID- 33897660
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20210729
IS  - 1664-302X (Print)
IS  - 1664-302X (Electronic)
IS  - 1664-302X (Linking)
VI  - 12
DP  - 2021
TI  - Effect of Divalent Cations (Cu, Zn, Pb, Cd, and Sr) on Microbially Induced 
      Calcium Carbonate Precipitation and Mineralogical Properties.
PG  - 646748
LID - 10.3389/fmicb.2021.646748 [doi]
LID - 646748
AB  - Microbially induced calcium carbonate precipitation (MICP) is a bio-geochemical 
      process involving calcium carbonate precipitation and possible co-precipitation 
      of other metals. The study investigated the extent to which a urease-positive 
      bacterium, Sporosarcina pasteurii, can tolerate a range of metals (e.g., Cu, Zn, 
      Pb, Cd, and Sr), and analyzed the role of calcium carbonate bioprecipitation in 
      eliminating these divalent toxicants from aqueous solutions. The experiments 
      using S. pasteurii were performed aerobically in growth media including urea, 
      CaCl(2) (30 mM) and different metals such Cu, Zn, Pb, and Cd (0.01  approximately  1 mM), and 
      Sr (1  approximately  30 mM). Microbial growth and urea degradation led to an increase in pH 
      and OD(600), facilitating the precipitation of calcium carbonate. The metal types 
      and concentrations contributed to the mineralogy of various calcium carbonates 
      precipitated and differences in metal removal rates. Pb and Sr showed more than 
      99% removal efficiency, whereas Cu, Zn, and Cd showed a low removal efficiency of 
      30 approximately 60% at a low concentration of 0.05 mM or less. Thus the removal efficiency of 
      metal ions during MICP varied with the types and concentrations of divalent 
      cations. The MICP in the presence of divalent metals also affected the 
      mineralogical properties such as carbonate mineralogy, shape, and crystallinity.
CI  - Copyright (c) 2021 Kim, Kwon and Roh.
FAU - Kim, Yumi
AU  - Kim Y
AD  - Department of Earth and Environmental Sciences, Chonnam National University, 
      Gwangju, South Korea.
FAU - Kwon, Sunki
AU  - Kwon S
AD  - Department of Earth and Environmental Sciences, Chonnam National University, 
      Gwangju, South Korea.
FAU - Roh, Yul
AU  - Roh Y
AD  - Department of Earth and Environmental Sciences, Chonnam National University, 
      Gwangju, South Korea.
LA  - eng
PT  - Journal Article
DEP - 20210408
PL  - Switzerland
TA  - Front Microbiol
JT  - Frontiers in microbiology
JID - 101548977
EIN - Front Microbiol. 2021 Jul 12;12:721478. PMID: 34322113
PMC - PMC8060479
OTO - NOTNLM
OT  - Sporosarcina pasteurii
OT  - bio-co-precipitation
OT  - bioremediation
OT  - heavy metals
OT  - urea hydrolysis
COIS- The authors declare that the research was conducted in the absence of any 
      commercial or financial relationships that could be construed as a potential 
      conflict of interest.
EDAT- 2021/04/27 06:00
MHDA- 2021/04/27 06:01
PMCR- 2021/04/08
CRDT- 2021/04/26 05:49
PHST- 2021/01/04 00:00 [received]
PHST- 2021/03/15 00:00 [accepted]
PHST- 2021/04/26 05:49 [entrez]
PHST- 2021/04/27 06:00 [pubmed]
PHST- 2021/04/27 06:01 [medline]
PHST- 2021/04/08 00:00 [pmc-release]
AID - 10.3389/fmicb.2021.646748 [doi]
PST - epublish
SO  - Front Microbiol. 2021 Apr 8;12:646748. doi: 10.3389/fmicb.2021.646748. 
      eCollection 2021.