PMID- 36163573
OWN - NLM
STAT- MEDLINE
DCOM- 20230210
LR  - 20230210
IS  - 1614-7499 (Electronic)
IS  - 0944-1344 (Linking)
VI  - 30
IP  - 6
DP  - 2023 Feb
TI  - Influence of humic acid on microbial induced carbonate precipitation for organic 
      soil improvement.
PG  - 15230-15240
LID - 10.1007/s11356-022-23157-8 [doi]
AB  - Microbial induced carbonate precipitation (MICP) is one of the most commonly 
      researched topics on biocementation, which achieves cementation of soil particles 
      by carbonate from urea hydrolysis catalyzed by microbial urease. Although most 
      MICP studies are limited to stabilizing sandy soils, more researchers are now 
      turning their interest to other weak soils, particularly organic soils. To 
      stabilize organic soils, the influence of humic substances should be investigated 
      since it has been reported to inhibit urease activity and disrupt the formation 
      of calcium carbonate. This study investigates the effect of humic acid (HA), one 
      fraction of humic substances, on MICP. For this purpose, the effects of HA 
      content on CaCO(3) precipitation using three strains and on CaCO(3) morphology 
      were examined. The results showed that native species in organic soils were less 
      adversely affected by HA addition than the exogenous one. Another interesting 
      finding is that bacteria seem to have strategies to cope with harsh conditions 
      with HA. Observation of CaCO(3) morphology revealed that the crystallization 
      process was hindered by HA to some extent, producing lots of fine amorphous 
      precipitates and large aggregated CaCO(3). Overall, this study could provide an 
      insightful understanding of possible obstacles when using MICP to stabilize 
      organic soils.
CI  - (c) 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, 
      part of Springer Nature.
FAU - Chen, Meiqi
AU  - Chen M
AUID- ORCID: 0000-0002-9833-7415
AD  - Graduate School of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-Ku, 
      Sapporo, 060-8628, Japan. meiqi.chen.g2@elms.hokudai.ac.jp.
FAU - Gowthaman, Sivakumar
AU  - Gowthaman S
AUID- ORCID: 0000-0002-9880-7886
AD  - Department of Engineering Technology, Faculty of Technology, University of 
      Jaffna, Kilinochchi, 44000, Sri Lanka.
FAU - Nakashima, Kazunori
AU  - Nakashima K
AUID- ORCID: 0000-0003-4492-104X
AD  - Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-Ku, Sapporo, 
      060-8628, Japan.
FAU - Kawasaki, Satoru
AU  - Kawasaki S
AUID- ORCID: 0000-0002-7984-928X
AD  - Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-Ku, Sapporo, 
      060-8628, Japan.
LA  - eng
PT  - Journal Article
DEP - 20220927
PL  - Germany
TA  - Environ Sci Pollut Res Int
JT  - Environmental science and pollution research international
JID - 9441769
RN  - 0 (Soil)
RN  - 0 (Humic Substances)
RN  - EC 3.5.1.5 (Urease)
RN  - 0 (Carbonates)
RN  - H0G9379FGK (Calcium Carbonate)
SB  - IM
MH  - *Soil/chemistry
MH  - *Humic Substances
MH  - Urease
MH  - Carbonates
MH  - Calcium Carbonate/chemistry
MH  - Chemical Precipitation
OTO - NOTNLM
OT  - CaCO3 morphology
OT  - Humic acid (HA)
OT  - Microbial induced carbonate precipitation (MICP)
OT  - Soil improvement
OT  - Urease activity
EDAT- 2022/09/28 06:00
MHDA- 2023/02/11 06:00
CRDT- 2022/09/27 00:18
PHST- 2022/05/17 00:00 [received]
PHST- 2022/09/17 00:00 [accepted]
PHST- 2022/09/28 06:00 [pubmed]
PHST- 2023/02/11 06:00 [medline]
PHST- 2022/09/27 00:18 [entrez]
AID - 10.1007/s11356-022-23157-8 [pii]
AID - 10.1007/s11356-022-23157-8 [doi]
PST - ppublish
SO  - Environ Sci Pollut Res Int. 2023 Feb;30(6):15230-15240. doi: 
      10.1007/s11356-022-23157-8. Epub 2022 Sep 27.