Microbially Induced Calcite Precipitation Employing Environmental Isolates
- Authors
- Kim, Gunjo; Youn, Heejung
- Issue Date
- Jun-2016
- Publisher
- MDPI
- Keywords
- MICP; microbe; calcite precipitation; urease activity; environmental isolates
- Citation
- MATERIALS, v.9, no.6
- Journal Title
- MATERIALS
- Volume
- 9
- Number
- 6
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/7764
- DOI
- 10.3390/ma9060468
- ISSN
- 1996-1944
- Abstract
- In this study, five microbes were employed to precipitate calcite in cohesionless soils. Four microbes were selected from calcite-precipitating microbes isolated from calcareous sand and limestone cave soils, with Sporosarcina pasteurii ATCC 11859 (standard strain) used as a control. Urease activities of the four microbes were higher than that of S. pasteurii. The microbes and urea-CaCl2 medium were injected at least four times into cohesionless soils of two different relative densities (60% and 80%), and the amount of calcite precipitation was measured. It was found that the relative density of cohesionless soils significantly affects the amount of calcite precipitation and that there is a weak correlation between urease activity and calcite precipitation.
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Collections - College of Engineering > Civil and Environmental Engineering > Journal Articles
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