Proceedings of the 2017 6th International Conference on Energy, Environment and Sustainable Development (ICEESD 2017)

Bioleaching of Uranium Ore Containing Fluorite Using Acidithiobacillus ferrivoran, Acidithiobacillus ferrooxidans and Leptospirillum ferriphilum

Authors
Xiaolan Mo, Xiang Li, Jiankang Wen, Liulu Cai
Corresponding Author
Xiaolan Mo
Available Online April 2017.
DOI
https://doi.org/10.2991/iceesd-17.2017.182How to use a DOI?
Keywords
pitchblende; MLA; bioleaching; mixed culture;
Abstract
The results of MLA automated quantitative mineralogy system indicated the uranium ore used in this study was mainly composed of pitchblende (0.47%), quartz (64.91%), fluorite (2.18%) and pyrite (0.44%). The existence of fluorine-containing minerals plays a strong inhibition role of bacterial activity in the bioleaching process. The chemical characteristics showed that the content of U ( ) (0.18%)was significantly higher than that of U ( ), and the U ( ) / U ( ) ratio was 4.5. It is difficult to dissolve with sulfuric acid due to relatively higher U ( ) in this uranium ore. The fluoride-tolerance mixed microbes were used for bioleaching of uranium, and the bioleaching and acid leaching experiments of fluoride-containing uranium ore were investigated in column reactor. The uranium extration rate of bioleaching column reached 72% in 38 days, using bioleaching have obvious advantages compare to conventional acid leaching (65%).
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Proceedings
2017 6th International Conference on Energy, Environment and Sustainable Development (ICEESD 2017)
Part of series
Advances in Engineering Research
Publication Date
April 2017
ISBN
978-94-6252-328-9
ISSN
2352-5401
DOI
https://doi.org/10.2991/iceesd-17.2017.182How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Xiaolan Mo
AU  - Xiang Li
AU  - Jiankang Wen
AU  - Liulu Cai
PY  - 2017/04
DA  - 2017/04
TI  - Bioleaching of Uranium Ore Containing Fluorite Using Acidithiobacillus ferrivoran, Acidithiobacillus ferrooxidans and Leptospirillum ferriphilum
BT  - 2017 6th International Conference on Energy, Environment and Sustainable Development (ICEESD 2017)
PB  - Atlantis Press
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceesd-17.2017.182
DO  - https://doi.org/10.2991/iceesd-17.2017.182
ID  - Mo2017/04
ER  -