PMID- 22850277
OWN - NLM
STAT- MEDLINE
DCOM- 20121210
LR  - 20131121
IS  - 1879-1298 (Electronic)
IS  - 0045-6535 (Linking)
VI  - 89
IP  - 6
DP  - 2012 Oct
TI  - Bioremediation of strontium (Sr) contaminated aquifer quartz sand based on 
      carbonate precipitation induced by Sr resistant Halomonas sp.
PG  - 764-8
LID - 10.1016/j.chemosphere.2012.06.064 [doi]
AB  - Contamination of aquifers or sediments by radioactive strontium ((90)Sr) is a 
      significant environmental problem. In the present study, microbially induced 
      calcite precipitation (MICP) was evaluated for its potential to remediate 
      strontium from aquifer quartz sand. A Sr resistant urease producing Halomonas sp. 
      was characterized for its potential role in bioremediation. The bacterial strain 
      removed 80% of Sr from soluble-exchangeable fraction of aquifer quartz sand. 
      X-ray diffraction detected calcite, vaterite and aragonite along with 
      calcite-strontianite (SrCO(3)) solid solution in bioremediated sample with 
      indications that Sr was incorporated into the calcite. Scanning electron 
      micrography coupled with energy-dispersive X-ray further confirmed MICP process 
      in remediation. The study showed that MICP sequesters soluble strontium as 
      biominerals and could play an important role in strontium bioremediation from 
      both ecological and greener point of view.
CI  - Copyright (c) 2012 Elsevier Ltd. All rights reserved.
FAU - Achal, Varenyam
AU  - Achal V
AD  - State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology 
      and Geography, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China.
FAU - Pan, Xiangliang
AU  - Pan X
FAU - Zhang, Daoyong
AU  - Zhang D
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20120731
PL  - England
TA  - Chemosphere
JT  - Chemosphere
JID - 0320657
RN  - 0 (Strontium Radioisotopes)
RN  - 0 (Water Pollutants, Radioactive)
RN  - 14808-60-7 (Quartz)
RN  - 7631-86-9 (Silicon Dioxide)
RN  - EC 3.5.1.5 (Urease)
RN  - H0G9379FGK (Calcium Carbonate)
RN  - YZS2RPE8LE (Strontium)
SB  - IM
MH  - Biodegradation, Environmental
MH  - Calcium Carbonate/*chemistry
MH  - Chemical Precipitation
MH  - Groundwater/*chemistry
MH  - Halomonas/enzymology
MH  - Quartz/chemistry
MH  - Silicon Dioxide/*chemistry
MH  - Strontium/chemistry/*metabolism
MH  - Strontium Radioisotopes/chemistry
MH  - Urease/metabolism
MH  - Water Pollutants, Radioactive/chemistry/*metabolism
EDAT- 2012/08/02 06:00
MHDA- 2012/12/12 06:00
CRDT- 2012/08/02 06:00
PHST- 2012/01/09 00:00 [received]
PHST- 2012/06/21 00:00 [revised]
PHST- 2012/06/21 00:00 [accepted]
PHST- 2012/08/02 06:00 [entrez]
PHST- 2012/08/02 06:00 [pubmed]
PHST- 2012/12/12 06:00 [medline]
AID - S0045-6535(12)00886-7 [pii]
AID - 10.1016/j.chemosphere.2012.06.064 [doi]
PST - ppublish
SO  - Chemosphere. 2012 Oct;89(6):764-8. doi: 10.1016/j.chemosphere.2012.06.064. Epub 
      2012 Jul 31.