Bioleaching of Uranium Ore Containing Fluorite Using Acidithiobacillus ferrivoran, Acidithiobacillus ferrooxidans and Leptospirillum ferriphilum
Xiaolan Mo, Xiang Li, Jiankang Wen, Liulu Cai
Available Online April 2017.
- https://doi.org/10.2991/iceesd-17.2017.182How to use a DOI?
- pitchblende; MLA; bioleaching; mixed culture;
- 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%).
- 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 SP - 1011 EP - 1014 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 -