DBPapers
DOI: 10.5593/SGEM2014/B13/S3.011

BACTERIAL LEACHING OF URANIUM RAW MATERIALS FROM ROZNA DEPOSIT (CZECH REPUBLIC)

J. Zavada, H. Nadkanska, T. Bouchal, B. Gibesova, A. Cibulcova,V. Blazek
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-09-4 / ISSN 1314-2704, June 19-25, 2014, Book 1, Vol. 3, 79-84 pp

ABSTRACT
The article deals with the possibility of using bacteria Acidithiobacillus ferrooxidans in extracting uranium from uranium ores from Rožná deposit in the Czech Republic. It presents a comparison between a purely chemical method of acidic leaching in sulphuric acid solution, and a biochemical method using the bacteria. The aim was to demonstrate the effect of bacteria on the leaching efficiency. Leaching was carried out under stationary conditions at the laboratory temperature of 25 ˚C. The results showed little difference in the efficiency of bacterial leaching compared with chemical leaching under these conditions, which are not optimal for bacterial growth.

Keywords: uranium, bacterial leaching, Acidithiobacillus ferrooxidans