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Effects of Montmorillonite on the Mineralization and Cementing Properties of Microbiologically Induced Calcium Carbonate
Joint Authors
Chen, Tao
Li, Jiwei
Shi, Peiheng
Li, Yi
Lei, Jia
Zhou, Jian
Hu, Zuowen
Duan, Tao
Tang, Yongjian
Zhu, Wenkun
Source
Advances in Materials Science and Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-10-09
Country of Publication
Egypt
No. of Pages
13
Abstract EN
Carbonate mineralization microbe is a microorganism capable of decomposing the substrate in the metabolic process to produce the carbonate, which then forms calcium carbonate with calcium ions.
By taking advantage of this process, contaminative uranium tailings can transform to solid cement, where calcium carbonate plays the role of a binder.
In this paper, we have studied the morphology of mineralized crystals by controlling the mineralization time and adding different concentrations of montmorillonite (MMT).
At the same time, we also studied the effect of carbonate mineralized cementation uranium tailings by controlling the amount of MMT.
The results showed that MMT can regulate the crystal morphology of calcium carbonate.
What is more, MMT can balance the acidity and ions in the uranium tailings; it also can reduce the toxicity of uranium ions on microorganisms.
In addition, MMT filling in the gap between the uranium tailings made the cement body more stable.
When the amount of MMT is 6%, the maximum strength of the cement body reached 2.18 MPa, which increased by 47.66% compared with that the sample without MMT.
Therefore, it is reasonable and feasible to use the MMT to regulate the biocalcium carbonate cemented uranium tailings.
American Psychological Association (APA)
Chen, Tao& Li, Jiwei& Shi, Peiheng& Li, Yi& Lei, Jia& Zhou, Jian…[et al.]. 2017. Effects of Montmorillonite on the Mineralization and Cementing Properties of Microbiologically Induced Calcium Carbonate. Advances in Materials Science and Engineering،Vol. 2017, no. 2017, pp.1-13.
https://search.emarefa.net/detail/BIM-1124762
Modern Language Association (MLA)
Chen, Tao…[et al.]. Effects of Montmorillonite on the Mineralization and Cementing Properties of Microbiologically Induced Calcium Carbonate. Advances in Materials Science and Engineering No. 2017 (2017), pp.1-13.
https://search.emarefa.net/detail/BIM-1124762
American Medical Association (AMA)
Chen, Tao& Li, Jiwei& Shi, Peiheng& Li, Yi& Lei, Jia& Zhou, Jian…[et al.]. Effects of Montmorillonite on the Mineralization and Cementing Properties of Microbiologically Induced Calcium Carbonate. Advances in Materials Science and Engineering. 2017. Vol. 2017, no. 2017, pp.1-13.
https://search.emarefa.net/detail/BIM-1124762
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1124762