Back to Search
Start Over
Heap bioleaching of uranium from low-grade granite-type ore by mixed acidophilic microbes.
- Source :
-
Journal of Radioanalytical & Nuclear Chemistry . Oct2017, Vol. 314 Issue 1, p251-258. 8p. 1 Color Photograph, 1 Diagram, 2 Charts, 5 Graphs. - Publication Year :
- 2017
-
Abstract
- We evaluated uranium bioleaching from low-grade, granite-type uranium ore using mixed acidophilic microbes from uranium mine leachate. A 4854-ton plant-scale heap bioleaching process achieved sustained leaching with a uranium leaching efficiency of 88.3% using a pH of 1.0-2.0 and an Fe dosage of 3.0-5.5 g/L. Acid consumption amounted to 25.8 g HSO kg ore. Uranium bioleaching follows a diffusion-controlled kinetic model with a correlation coefficient of 0.9136. Almost all uranium was dissolved in aqueous solution, except those encapsulated in quartz particles. Therefore, heap bioleaching by mixed acidophilic microbes enables efficient, economical, large-scale recovery of uranium from low-grade ores. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02365731
- Volume :
- 314
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Journal of Radioanalytical & Nuclear Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 125293860
- Full Text :
- https://doi.org/10.1007/s10967-017-5406-8