PMID- 36410249
OWN - NLM
STAT- MEDLINE
DCOM- 20221205
LR  - 20221205
IS  - 1873-3336 (Electronic)
IS  - 0304-3894 (Linking)
VI  - 444
IP  - Pt A
DP  - 2023 Feb 15
TI  - Immobilizing copper in loess soil using microbial-induced carbonate 
      precipitation: Insights from test tube experiments and one-dimensional soil 
      columns.
PG  - 130417
LID - S0304-3894(22)02211-7 [pii]
LID - 10.1016/j.jhazmat.2022.130417 [doi]
AB  - Biomineralization as an alternative to traditional remediation measures has been 
      widely applied to remediate copper (Cu)-contaminated sites due to its 
      environmental-friendly nature. Immobilizing Cu is, however, a challenging task as 
      it inevitably causes inactivation of ureolytic bacteria. In the present work, a 
      series of test tube experiments were conducted to derive the relationships of Cu 
      immobilization efficiency versus pH conditions. The Cu speciation transformation 
      that is invisible in the test tube experiments was investigated via numerical 
      simulations. Apart from that, the one-dimensional soil column tests, accompanied 
      by the X-ray diffraction (XRD) and Raman spectroscopy analysis, mainly aimed not 
      only to investigate the variations of Cu immobilization efficiency with the depth 
      but to reveal the underlying mechanisms affecting the Cu immobilization 
      efficiency. The results of the test tube experiments highlight the necessity of 
      narrowing pH ranges to as close as 7 by introducing an appropriate bacterial 
      inoculation proportion. The coordination adsorption of Cu, while performing the 
      one-dimensional soil column tests, is encouraged by alkaline environments, which 
      differs from the test tube experiments where Cu(2+) is capsulized by carbonate 
      precipitates to prevent their migration. The findings highlight the potential of 
      applying the microbial-induced carbonate precipitation (MICP) technology to 
      Cu-rich water bodies and Cu-contaminated sites remediation.
CI  - Copyright (c) 2022 Elsevier B.V. All rights reserved.
FAU - Xie, Yi-Xin
AU  - Xie YX
AD  - PhD student, School of Civil Engineering, Xi'an University of Architecture and 
      Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Geotechnical and 
      Underground Space Engineering (XAUAT), Xi'an 710055, China. Electronic address: 
      xieyixin@xauat.edu.cn.
FAU - Cheng, Wen-Chieh
AU  - Cheng WC
AD  - Professor, School of Civil Engineering, Xi'an University of Architecture and 
      Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Geotechnical and 
      Underground Space Engineering (XAUAT), Xi'an 710055, China. Electronic address: 
      w-c.cheng@xauat.edu.cn.
FAU - Wang, Lin
AU  - Wang L
AD  - PhD student, School of Civil Engineering, Xi'an University of Architecture and 
      Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Geotechnical and 
      Underground Space Engineering (XAUAT), Xi'an 710055, China. Electronic address: 
      wanglin@xauat.edu.cn.
FAU - Xue, Zhong-Fei
AU  - Xue ZF
AD  - PhD student, School of Civil Engineering, Xi'an University of Architecture and 
      Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Geotechnical and 
      Underground Space Engineering (XAUAT), Xi'an 710055, China. Electronic address: 
      xuezhongfei@xauat.edu.cn.
FAU - Rahman, Md Mizanur
AU  - Rahman MM
AD  - Professor in Geotechnical Engineering, UniSA STEM, ScaRCE, University of South 
      Australia, SA 5000, Australia. Electronic address: mizanur.rahman@unisa.edu.au.
FAU - Hu, Wenle
AU  - Hu W
AD  - PhD student, School of Civil Engineering, Xi'an University of Architecture and 
      Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Geotechnical and 
      Underground Space Engineering (XAUAT), Xi'an 710055, China. Electronic address: 
      wenlehu@xauat.edu.cn.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20221115
PL  - Netherlands
TA  - J Hazard Mater
JT  - Journal of hazardous materials
JID - 9422688
RN  - 789U1901C5 (Copper)
RN  - 0 (Soil)
RN  - 0 (Carbonates)
SB  - IM
MH  - *Copper
MH  - Soil
MH  - Carbonates
MH  - *Environmental Restoration and Remediation
MH  - Biomineralization
OTO - NOTNLM
OT  - Bacterial cementation solution
OT  - Biomineralization
OT  - Coordination adsorption
OT  - Copper metal
OT  - Immobilization efficiency
COIS- Declaration of Competing Interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2022/11/22 06:00
MHDA- 2022/12/06 06:00
CRDT- 2022/11/21 18:29
PHST- 2022/09/13 00:00 [received]
PHST- 2022/10/20 00:00 [revised]
PHST- 2022/11/14 00:00 [accepted]
PHST- 2022/11/22 06:00 [pubmed]
PHST- 2022/12/06 06:00 [medline]
PHST- 2022/11/21 18:29 [entrez]
AID - S0304-3894(22)02211-7 [pii]
AID - 10.1016/j.jhazmat.2022.130417 [doi]
PST - ppublish
SO  - J Hazard Mater. 2023 Feb 15;444(Pt A):130417. doi: 10.1016/j.jhazmat.2022.130417. 
      Epub 2022 Nov 15.