PMID- 34382171
OWN - NLM
STAT- MEDLINE
DCOM- 20220110
LR  - 20220110
IS  - 1614-7499 (Electronic)
IS  - 0944-1344 (Linking)
VI  - 29
IP  - 2
DP  - 2022 Jan
TI  - Study on the performance of carbonate-mineralized bacteria combined with eggshell 
      for immobilizing Pb and Cd in water and soil.
PG  - 2924-2935
LID - 10.1007/s11356-021-15138-0 [doi]
AB  - Microbially induced carbonate precipitation (MICP) is an advanced bioremediation 
      approach to remediate heavy metal (HM)-contaminated water and soil. In this 
      study, metal-tolerant urease-producing bacterial isolates, namely, UR1, UR16, 
      UR20, and UR21, were selected based on their urease activity. The efficiency of 
      these isolates in water for Pb and Cd immobilizations was explored. Our results 
      revealed that UR21 had the highest removal rates of Pb (81.9%) and Cd (65.0%) in 
      solution within 72 h through MICP. The scanning electron 
      microscopy-energy-dispersive x-ray and x-ray diffraction analysis confirmed the 
      structure and the existence of PbCO(3) and CdCO(3) crystals in the precipitates. 
      In addition, the strain UR21, in combination with urea/eggshell waste (EGS) or 
      both, was further employed to investigate the effect of MICP on soil enzymatic 
      activity, chemical fractions, and bioavailability of Pb and Cd. The outcomes 
      indicated that the applied treatments reduced the proportion of 
      soluble-exchangeable-Pb and -Cd, which resulted in an increment in 
      carbonate-bound Pb and Cd in the soil. The DTPA-extractable Pb and Cd were 
      reduced by 29.2% and 25.2% with the treatment of UR21+urea+EGS as compared to the 
      control. Besides, the application of UR21 and EGS significantly increased the 
      soil pH, cation exchange capacity, and enzyme activities. Our findings may 
      provide a novel perceptive for an eco-friendly and sustainable approach to 
      remediate heavy metal-contaminated environment through a combination of 
      metal-resistant ureolytic bacterial strain and EGS.
CI  - (c) 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, 
      part of Springer Nature.
FAU - Wei, Ting
AU  - Wei T
AD  - School of Environmental Science and Engineering, Shaanxi University of Science & 
      Technology, Xi'an, 710021, People's Republic of China. weiting@sust.edu.cn.
FAU - Yashir, Noman
AU  - Yashir N
AD  - School of Environmental Science and Engineering, Shaanxi University of Science & 
      Technology, Xi'an, 710021, People's Republic of China.
FAU - An, Fengqiu
AU  - An F
AD  - College of Environmental and Chemical Engineering, Polytechnic University, Xi'an, 
      710048, China.
FAU - Imtiaz, Syed Asad
AU  - Imtiaz SA
AD  - School of Environmental Science and Engineering, Shaanxi University of Science & 
      Technology, Xi'an, 710021, People's Republic of China.
FAU - Li, Xian
AU  - Li X
AD  - School of Environmental Science and Engineering, Shaanxi University of Science & 
      Technology, Xi'an, 710021, People's Republic of China.
FAU - Li, Hong
AU  - Li H
AD  - School of Environmental Science and Engineering, Shaanxi University of Science & 
      Technology, Xi'an, 710021, People's Republic of China.
LA  - eng
GR  - 41807123/National Natural Science Foundation of China/
GR  - 2020JQ-718/Natural Science Foundation of Shaanxi Province/
PT  - Journal Article
DEP - 20210811
PL  - Germany
TA  - Environ Sci Pollut Res Int
JT  - Environmental science and pollution research international
JID - 9441769
RN  - 0 (Carbonates)
RN  - 0 (Metals, Heavy)
RN  - 0 (Soil)
RN  - 0 (Soil Pollutants)
RN  - 00BH33GNGH (Cadmium)
RN  - 059QF0KO0R (Water)
RN  - 2P299V784P (Lead)
SB  - IM
MH  - Animals
MH  - Bacteria
MH  - Cadmium/analysis
MH  - Carbonates
MH  - Egg Shell/chemistry
MH  - Lead
MH  - *Metals, Heavy
MH  - Soil
MH  - *Soil Pollutants/analysis
MH  - Water
OTO - NOTNLM
OT  - Bioremediation
OT  - Cadmium
OT  - Eggshell waste
OT  - Lead
OT  - Microbially induced carbonate precipitation
OT  - Ureolytic bacteria
EDAT- 2021/08/13 06:00
MHDA- 2022/01/11 06:00
CRDT- 2021/08/12 06:47
PHST- 2021/03/26 00:00 [received]
PHST- 2021/06/22 00:00 [accepted]
PHST- 2021/08/13 06:00 [pubmed]
PHST- 2022/01/11 06:00 [medline]
PHST- 2021/08/12 06:47 [entrez]
AID - 10.1007/s11356-021-15138-0 [pii]
AID - 10.1007/s11356-021-15138-0 [doi]
PST - ppublish
SO  - Environ Sci Pollut Res Int. 2022 Jan;29(2):2924-2935. doi: 
      10.1007/s11356-021-15138-0. Epub 2021 Aug 11.