中文版 | English
Title

Microscale investigations of temperature-dependent microbially induced carbonate precipitation (MICP) in the temperature range 4-50 degrees C

Author
Corresponding AuthorWang, Yuze
Publication Years
2022-10-01
DOI
Source Title
ISSN
1861-1125
EISSN
1861-1133
Abstract

Microbially induced carbonate precipitation (MICP) involves a series of bio-geochemical reactions whereby microbes alter the surrounding aqueous environment and induce calcium carbonate precipitation. MICP has a broad range of applications, including in situ soil stabilization. However, the reliability of this process is dependent on a number of environmental conditions. In particular, bacterial growth, urease activity and precipitation kinetics all depend on temperature. Batch test and microfluidic chip experiments were performed in this study to investigate the effects of temperature on bacterial density and activity and the MICP processes occurring at different temperatures (4-50 degrees C). Spatial and temporal variations in the formation and development of calcium carbonate precipitates, including their amount, type, growth rate, formation and deformation characteristics, were monitored. Results show that different types of calcium carbonate precipitates with varying sizes and quantities were produced by varying the temperature. Low temperature (4 degrees C) did not reduce urease activity, but limited the final amount of cementation; low temperature reduced bacterial growth and attachment ratio, as well as calcium carbonate precipitation rate. High-temperature (50 degrees C) conditions significantly reduced urease activity within a short period of time, while a repeated injection of bacteria before every two injections of cementation solution increased the final amount of cementation. The findings made from this paper provide insight into how MICP processes vary across a range of temperatures and could be valuable for optimizing the MICP process for different applications.

Keywords
URL[Source Record]
Indexed By
Language
English
SUSTech Authorship
First ; Corresponding
Funding Project
Natural Science Foundation of China[
WOS Research Area
Engineering
WOS Subject
Engineering, Geological
WOS Accession No
WOS:000876855700004
Publisher
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:4
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/412151
DepartmentSouthern University of Science and Technology
工学院_海洋科学与工程系
Affiliation
1.Southern Univ Sci & Technol, Shenzhen Key Lab Nat Gas Hydrates, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Dept Ocean Sci & Engn, Shenzhen 518055, Peoples R China
3.Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA
4.Univ Calif Davis, Dept Civil & Environm Engn, Davis, CA 95616 USA
5.Univ Cambridge, Dept Engn, Cambridge CB2 1PZ, England
First Author AffilicationSouthern University of Science and Technology;  Department of Ocean Science and Engineering
Corresponding Author AffilicationSouthern University of Science and Technology;  Department of Ocean Science and Engineering
First Author's First AffilicationSouthern University of Science and Technology
Recommended Citation
GB/T 7714
Wang, Yuze,Wang, Yong,Soga, Kenichi,et al. Microscale investigations of temperature-dependent microbially induced carbonate precipitation (MICP) in the temperature range 4-50 degrees C[J]. Acta Geotechnica,2022.
APA
Wang, Yuze,Wang, Yong,Soga, Kenichi,DeJong, Jason T.,&Kabla, Alexandre J..(2022).Microscale investigations of temperature-dependent microbially induced carbonate precipitation (MICP) in the temperature range 4-50 degrees C.Acta Geotechnica.
MLA
Wang, Yuze,et al."Microscale investigations of temperature-dependent microbially induced carbonate precipitation (MICP) in the temperature range 4-50 degrees C".Acta Geotechnica (2022).
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