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Effects of Thiobacillus Ferrooxidans on Barium-radium Sulfate in Uranium Mill Tailings.

Authors
Perez-J; Torma-AE; Itzkovitch-IJ
Source
Recent Progress in Biohydrometallurgy 1983 :14 pages
Link
NIOSHTIC No.
10011777
Abstract
The influence of bacteria, thiobacillus ferrooxidans, on the stability of barium-radium sulfate precipitate present in treated synthetic and actual uranium mill tailings slurries was investigated. The radium-226 concentration was found to be lower in the inoculated leach suspensions than it was in the sterile controls. One explanation for this is the production of ferric sulfate and sulfuric acid by bacterial oxidation of pyrite contained in tailings. The excess of sulfate concentration resulted in a decrease in the dissociation of the barium-radium sulfate and as a consequence in the lowering of concentration of dissolved radium- 226.
Publication Date
19830101
Document Type
IH; Final Contract Report;
Fiscal Year
1983
NTIS Accession No.
NTIS Price
Identifying No.
MIR 2-85
NIOSH Division
WO;
Source Name
Recent Progress in Biohydrometallurgy 1983
State
NM;
Performing Organization
New Mexico Inst. Min. and Technology
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