Uranium dioxide interaction with groundwater - Leaching behavior and sorption tests

被引：6

作者：

Batuk, O. N. ^{[1
]}

Kalmykov, St. N. ^{[1
]}

Zakharova, E. V. ^{[1
]}

Teterin, Yu. A. ^{[1
]}

Myasoedov, B. F. ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Dept Chem, Div Radiochem, Moscow, Russia

来源：

JOURNAL OF NUCLEAR MATERIALS | 2006年 / 352卷 / 1-3期

关键词：

A0300; S1300; U0200; W0200;

D O I：

10.1016/j.jnucmat.2006.02.060

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The solubility of three UO2 samples that were synthesized at different temperatures in reducing atmosphere and having different composition of surface oxidized layer was studied in distilled water and tuff groundwater (J-13). The solubility of the samples was governed by the presence of U(VI) in the surface oxidized layer. The sorption of Np(V) on those samples was accompanied by its partial reduction upon contact with UO2 (samples). For Np(IV) a partial oxidation was observed at pH values between 4.5 and 6.5. The most oxidized sample. with the highest U(VI) content in the surface layer. despite the highest solubility, was more efficient in the sorption of Np(V). (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：241 / 245

页数：5

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