PMID- 34952498
OWN - NLM
STAT- MEDLINE
DCOM- 20220127
LR  - 20220127
IS  - 1873-3336 (Electronic)
IS  - 0304-3894 (Linking)
VI  - 426
DP  - 2022 Mar 15
TI  - Effects of bacterial inoculation and calcium source on microbial-induced 
      carbonate precipitation for lead remediation.
PG  - 128090
LID - S0304-3894(21)03059-4 [pii]
LID - 10.1016/j.jhazmat.2021.128090 [doi]
AB  - Heavy metal contamination has caused serious threats to surrounding fragile 
      environments and human health. While the novel microbial-induced carbonate 
      precipitation (MICP) technology in the recent years has been proven effective in 
      improving material mechanical and durability properties, the mechanisms remedying 
      heavy metal contamination still remain unclear. In this study, the potential of 
      applying the MICP technology to the lead remediation under the effects of urease 
      activity and calcium source was explored. The values of OD(600) corresponding to 
      the ureolytic bacterial activity, electrical conductivity (EC), urease activity 
      (UA) and pH were applied to monitor the degree of urea hydrolysis. Further, the 
      carbonate precipitations that possess different speciations and cannot be 
      distinguished through test tube experiments were reproduced using the Visual 
      MINTEQ software package towards verifying the validity of the proposed 
      simulations, and revealing the mechanisms affecting the lead remediation 
      efficiency. The findings summarised in this work give deep insights into 
      lead-contaminated site remediation engineering.
CI  - Copyright (c) 2021 Elsevier B.V. All rights reserved.
FAU - Xue, Zhong-Fei
AU  - Xue ZF
AD  - 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 - Cheng, Wen-Chieh
AU  - Cheng WC
AD  - 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  - 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 - Hu, Wenle
AU  - Hu W
AD  - 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 - 20211216
PL  - Netherlands
TA  - J Hazard Mater
JT  - Journal of hazardous materials
JID - 9422688
RN  - 0 (Carbonates)
RN  - 0 (Soil)
RN  - 2P299V784P (Lead)
RN  - H0G9379FGK (Calcium Carbonate)
RN  - SY7Q814VUP (Calcium)
SB  - IM
MH  - *Calcium
MH  - Calcium Carbonate
MH  - Carbonates
MH  - Chemical Precipitation
MH  - Humans
MH  - Lead
MH  - *Soil
OTO - NOTNLM
OT  - Bacterial inoculation
OT  - Biomineralization
OT  - Calcium source
OT  - Lead contamination
OT  - Microbial-induced carbonate precipitation
EDAT- 2021/12/25 06:00
MHDA- 2022/01/28 06:00
CRDT- 2021/12/24 20:27
PHST- 2021/10/10 00:00 [received]
PHST- 2021/11/30 00:00 [revised]
PHST- 2021/12/13 00:00 [accepted]
PHST- 2021/12/25 06:00 [pubmed]
PHST- 2022/01/28 06:00 [medline]
PHST- 2021/12/24 20:27 [entrez]
AID - S0304-3894(21)03059-4 [pii]
AID - 10.1016/j.jhazmat.2021.128090 [doi]
PST - ppublish
SO  - J Hazard Mater. 2022 Mar 15;426:128090. doi: 10.1016/j.jhazmat.2021.128090. Epub 
      2021 Dec 16.