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| Test of Microbial Heap Leaching of Uranium Tailings |
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Received:January 17, 2016
Revised:January 19, 2016
Accepted:January 20, 2016
Published Online:April 18, 2016
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| DOI：doi：10.3969/j.issn.1007-7545.2016.05.007 |
| KeyWord:uranium; tailings; microbial heap leaching; intermittent spraying; spray quantity |
| Author | Institution |
| HUA Guo-huan |
东华理工大学 |
| SUN Zhan-xue |
东华理工大学 |
| LI Jiang |
东华理工大学 |
| LIU Ya-jie |
东华理工大学 |
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| Abstract: |
| Uranium heap leached tailings have been microbial heap leached for 49 days with spray quantity of 80 m3/d and L/S=0.49 by intermittent spraying as one day on and one day off. Uranium leaching rate is 4.62% with uranium concentration in solution of 50 mg/L above. This method effectively addresses difficulty of uranium leaching and low leaching efficiency in later period of heap leaching, and improves uranium concentration in unit leaching solution. |
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