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Plutonium, americium, and neptunium speciation in selected groundwaters

Nuclear Technology

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Abstract

Speciation was determined at 25 and 90 degree C in four groundwaters from diverse sources: the Sparta aquifer in Louisiana, near the Vacherie salt dome; Mansfield No. 2 well in the Palo Duro Basin, Texas; the Stripa mine in Sweden; and the Waste Isolation Pilot Plant in New Mexico. Neptunium generally was soluble in all waters and was present exclusively as Np(V) and Np(VI), regardless of initial oxidation state. The results indicated that plutonium and neptunium solubilities were determined by the oxidation-reduction properties of the waters, i. e. , their abilities to convert these elements to soluble oxidation states. This was not the case for americium, however; Am(IV) was not detected, and the solubility of this element was determined entirely by the chemical properties of Am(III).

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Plutonium, americium, and neptunium speciation in selected groundwaters
Series title:
Nuclear Technology
Volume
69
Issue:
3
Year Published:
1985
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Nuclear Technology
First page:
380
Last page:
387
Number of Pages:
8