PMID- 35792264
OWN - NLM
STAT- MEDLINE
DCOM- 20220831
LR  - 20220831
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 844
DP  - 2022 Oct 20
TI  - Microbial-induced carbonate precipitation prevents Cd(2+) migration through the 
      soil profile.
PG  - 157167
LID - S0048-9697(22)04265-6 [pii]
LID - 10.1016/j.scitotenv.2022.157167 [doi]
AB  - Cadmium (Cd)-containing wastewater has been used to irrigate agricultural land. 
      However, long term usage has resulted in the accumulation of Cd in the soil 
      systems, which can eventually leach into the aquifer, contaminating groundwater. 
      Microbial-induced carbonate precipitation (MICP), an economical and effective 
      method, was used to block the in situ migration of Cd(2+) in the soil profile. 
      The results of the laboratory experiments showed that the maximum Cd(2+) 
      adsorption capacity of the soil exposed to MICP (8.92 mg/g) was higher than that 
      of soil without MICP (7.12 mg/g). The Thomas model provided a good fit for the 
      Cd(2+) migration process in soil exposed to MICP (R(2) > 0.96), and Cd(2+) was 
      trapped more effectively by soil exposed to MICP than by soil alone. Further 
      testing showed that the Cd(2+) retention time in the MICP soil column increased 
      with increasing soil urea content and pH but decreased with increasing flow rate. 
      Soil physico-chemical properties showed that the MICP process increased the soil 
      particle size and Cd capacity and decreased the proportion of exchangeable Cd in 
      the soil. Scanning electron microscopy and X-ray diffraction analyses confirmed 
      the generation of CdCO(3) in the MICP soil column. The findings of this study 
      indicate that MICP can be effectively used to immobilize Cd(2+) and prevent its 
      migration in the soil profile.
CI  - Copyright (c) 2022 Elsevier B.V. All rights reserved.
FAU - Song, Hewei
AU  - Song H
AD  - College of New Energy and Environment, Jilin University, Changchun 130021, 
      People's Republic of China; Key Lab of Groundwater Resources and Environment, 
      Ministry of Education, Jilin University, Changchun 130021, People's Republic of 
      China.
FAU - Kumar, Amit
AU  - Kumar A
AD  - School of Hydrology and Water Resources, Nanjing University of Information 
      Science and Technology, Nanjing 210044, People's Republic of China.
FAU - Zhang, Yuling
AU  - Zhang Y
AD  - College of New Energy and Environment, Jilin University, Changchun 130021, 
      People's Republic of China; Key Lab of Groundwater Resources and Environment, 
      Ministry of Education, Jilin University, Changchun 130021, People's Republic of 
      China. Electronic address: lingling29@126.com.
LA  - eng
PT  - Journal Article
DEP - 20220702
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
RN  - 0 (Carbonates)
RN  - 0 (Soil)
RN  - 00BH33GNGH (Cadmium)
RN  - H0G9379FGK (Calcium Carbonate)
SB  - IM
MH  - *Cadmium/chemistry
MH  - Calcium Carbonate/chemistry
MH  - Carbonates/chemistry
MH  - Chemical Precipitation
MH  - *Soil/chemistry
MH  - Soil Microbiology
OTO - NOTNLM
OT  - Cd migration
OT  - Cd wastewater
OT  - Microbial-induced carbonate precipitation
OT  - Urea
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- 2022/07/07 06:00
MHDA- 2022/09/01 06:00
CRDT- 2022/07/06 07:45
PHST- 2022/03/16 00:00 [received]
PHST- 2022/06/28 00:00 [revised]
PHST- 2022/06/30 00:00 [accepted]
PHST- 2022/07/07 06:00 [pubmed]
PHST- 2022/09/01 06:00 [medline]
PHST- 2022/07/06 07:45 [entrez]
AID - S0048-9697(22)04265-6 [pii]
AID - 10.1016/j.scitotenv.2022.157167 [doi]
PST - ppublish
SO  - Sci Total Environ. 2022 Oct 20;844:157167. doi: 10.1016/j.scitotenv.2022.157167. 
      Epub 2022 Jul 2.