Journal
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
Volume 313, Issue 3, Pages 523-529Publisher
SPRINGER
DOI: 10.1007/s10967-017-5348-1
Keywords
Co-precipitation; Plutonium; Americium; Bismuth oxalate; Anion exchange
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Co-precipitation of plutonium and americium from nitric acid-oxalic acid solutions with bismuth oxalate has been investigated for the removal of these long lived alpha-active nuclides from plutonium oxalate waste solutions and anion exchange effluents respectively. Strong co-precipitation of Pu(IV) and Am(III) with bismuth oxalate from a wide range of nitric acid and oxalic acid concentrations indicate feasibility of direct treatment of oxalate waste solutions and anion exchange effluents by this method. Co-precipitation of Am(III) from high nitric acid concentrations is poor, however, this could be effectively achieved, after partially neutralizing the acid with ammonia.
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