PMID- 22154871
OWN - NLM
STAT- MEDLINE
DCOM- 20120518
LR  - 20131121
IS  - 1873-3336 (Electronic)
IS  - 0304-3894 (Linking)
VI  - 201-202
DP  - 2012 Jan 30
TI  - Biomineralization based remediation of As(III) contaminated soil by Sporosarcina 
      ginsengisoli.
PG  - 178-84
LID - 10.1016/j.jhazmat.2011.11.067 [doi]
AB  - Arsenic is a highly toxic metalloid and has posed high risk to the environment. 
      As(III) is highly mobile in soil and leached easily into groundwater. The current 
      remediation techniques are not sufficient to immobilize this toxic element. In 
      the present study, an As(III) tolerant bacterium Sporosarcina ginsengisoli CR5 
      was isolated from As contaminated soil of Urumqi, China. We investigated the role 
      of microbial calcite precipitated by this bacterium to remediate soil 
      contaminated with As(III). The bacterium was able to grow at high As(III) 
      concentration of 50mM. In order to obtain arsenic distribution pattern, five 
      stage soil sequential extraction was carried out. Arsenic mobility was found to 
      significantly decrease in the exchangeable fraction of soil and subsequently the 
      arsenic concentration was markedly increased in carbonated fraction after 
      bioremediation. Microbially induced calcite precipitation (MICP) process in 
      bioremediation was further confirmed by ATR-FTIR and XRD analyses. XRD spectra 
      showed presence of various biomineralization products such as calcite, 
      gwihabaite, aragonite and vaterite in bioremediated soil samples. The results 
      from this study have implications that MICP based bioremediation by S. 
      ginsengisoli is a viable, environmental friendly technology for remediation of 
      the arsenic contaminated sites.
CI  - Copyright (c) 2011 Elsevier B.V. All rights reserved.
FAU - Achal, Varenyam
AU  - Achal V
AD  - Laboratory of Environmental Pollution and Bioremediation, Xinjiang Institute of 
      Ecology and Geography, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, 
      China.
FAU - Pan, Xiangliang
AU  - Pan X
FAU - Fu, Qinglong
AU  - Fu Q
FAU - Zhang, Daoyong
AU  - Zhang D
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20111128
PL  - Netherlands
TA  - J Hazard Mater
JT  - Journal of hazardous materials
JID - 9422688
RN  - 0 (Arsenicals)
RN  - 0 (Soil Pollutants)
RN  - H0G9379FGK (Calcium Carbonate)
SB  - IM
MH  - Arsenicals/chemistry/*isolation & purification
MH  - Biodegradation, Environmental
MH  - Calcium Carbonate/chemistry
MH  - Chemical Precipitation
MH  - China
MH  - *Soil Microbiology
MH  - Soil Pollutants/chemistry/*isolation & purification
MH  - Sporosarcina/*growth & development
EDAT- 2011/12/14 06:00
MHDA- 2012/05/19 06:00
CRDT- 2011/12/14 06:00
PHST- 2011/04/20 00:00 [received]
PHST- 2011/11/11 00:00 [revised]
PHST- 2011/11/18 00:00 [accepted]
PHST- 2011/12/14 06:00 [entrez]
PHST- 2011/12/14 06:00 [pubmed]
PHST- 2012/05/19 06:00 [medline]
AID - S0304-3894(11)01447-6 [pii]
AID - 10.1016/j.jhazmat.2011.11.067 [doi]
PST - ppublish
SO  - J Hazard Mater. 2012 Jan 30;201-202:178-84. doi: 10.1016/j.jhazmat.2011.11.067. 
      Epub 2011 Nov 28.