Retardation of long-lived radionuclides on bentonites

被引：0

作者：

Jedináková-Krízová, V ^{[1
]}

Jurcek, P ^{[1
]}

Kohlícková, M ^{[1
]}

机构：

[1] Inst Chem Technol, Dept Analyt Chem, CR-16628 Prague, Czech Republic

来源：

PROCEEDINGS OF THE WORKSHOP ON LONG-LIVED RADIONUCLIDE CHEMISTRY IN NUCLEAR WASTE TREATMENT | 1998年

关键词：

D O I：

暂无

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

This contribution summarises the mechanisms of transport and retardation processes, chemistry and migration behaviour of radionuclides of fission products and actinides in natural sorbents, especially bentonites. The effect of solubilities and dissolution reactions, diffusion and sorption/desorption, complexation and variations in the aqueous phase composition, pH-value and oxidation-reduction properties and other phenomena on Kd values is discussed. The experimental method of determining distribution coefficient K-d as one of the important parameters for characterisation of materials through static batch sorption experiments is proposed. Possible deviations due to irrelevant steps in this procedure are predicted and evaluated. Bentonites' buffering properties have been investigated by examining the effects of the aqueous phases pH on sorption of radionuclides Cs-134 and Sr-85. From the results it is evident that bentonites belong to materials with very good buffering properties. All types of bentonites show very good sorption properties.

引用

页码：99 / 110

页数：12

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[41] Internal exposure of populations to long-lived radionuclides released into the environment [J].

Balonov, MI .

HEALTH IMPACTS OF LARGE RELEASES OF RADIONUCLIDES, 1997, 203 :120-133

[42] Behavior of long-lived radionuclides in the Danube river ecosystem in Serbia [J].

Vukovic, Z. ;

Sipka, V. ;

Vukovic, D. ;

Todorovic, D. ;

Markovic, L. .

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2006, 268 (03) :647-649

[43] Analysis of the accuracy of determining the concentration of long-lived radionuclides in the sea [J].

Vysotskii, VL ;

Sivintsev, YV .

ATOMIC ENERGY, 1997, 83 (04) :742-755

[44] Analysis of the accuracy of determing the concentration of long-lived radionuclides in the sea [J].

V. L. Vysotskii ;

Yu. V. Sivintsev .

Atomic Energy, 1997, 83 :742-755

[45] Behavior of long-lived radionuclides in the Danube river ecosystem in Serbia [J].

Vuković Ž. ;

Šipka V. ;

Vuković D. ;

Todorović D. ;

Marković L. .

Journal of Radioanalytical and Nuclear Chemistry, 2006, 268 (3) :647-649

[46] MEASUREMENT OF ACTINIDES AND LONG-LIVED RADIONUCLIDES IN LARGE CORAL SAMPLES [J].

NEVISSI, AE .

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES, 1992, 156 (02) :243-251

[47] Measurement of the (n, γ) cross sections for the generation of long-lived radionuclides [J].

Xia, Yijun ;

Long, Xianguan ;

Wang, Chunhao ;

Yang, Zhihua ;

Luo, Xiaobing ;

Liu, Mantian ;

Yang, Jinfu ;

Pen, Xiufeng .

Yuanzineng Kexue Jishu/Atomic Energy Science and Technology, 1995, 29 (04) :318-319

[48] LUNG DOSIMETRY FOR INHALED LONG-LIVED RADIONUCLIDES AND RADON PROGENY [J].

Hussain, M. ;

Winkler-Heil, R. ;

Hofmann, W. .

RADIATION PROTECTION DOSIMETRY, 2011, 145 (2-3) :213-217

[49] Production and separation of long-lived radionuclides for nuclear physics experiments [J].

Schumann, Dorothea .

FRONTIERS IN NUCLEAR STRUCTURE, ASTROPHYSICS, AND REACTIONS: FINUSTAR 2, 2008, 1012 :422-424

[50] DISTRIBUTION OF LONG-LIVED RADIONUCLIDES IN AN ABANDONED REACTOR COOLING RESERVOIR [J].

WHICKER, FW ;

PINDER, JE ;

BOWLING, JW ;

ALBERTS, JJ ;

BRISBIN, IL .

ECOLOGICAL MONOGRAPHS, 1990, 60 (04) :471-496

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