Diffusion mechanisms of multiple strontium species in clay

Cole, Thomas G.; Bidoglio, G.; Soupioni, M.; O'Gorman, Mark J.; Gibson, P.N.

doi:10.1016/s0016-7037(99)00324-5

Cited by 65 publications

(40 citation statements)

References 40 publications

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“…1-D diffusion of a contaminant in the soil mass can be expressed by Fick's second law (Robin et al 1987;Shackelford 1991;Mehta et al 1995;Cole et al 2000):…”

Section: Diffusion Of Contaminants In Soilsmentioning

confidence: 99%

A Methodology for Simulating Radionuclide Diffusion in Unsaturated Soils

2008

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“…1-D diffusion of a contaminant in the soil mass can be expressed by Fick's second law (Robin et al 1987;Shackelford 1991;Mehta et al 1995;Cole et al 2000):…”

Section: Diffusion Of Contaminants In Soilsmentioning

confidence: 99%

A Methodology for Simulating Radionuclide Diffusion in Unsaturated Soils

2008

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“…Various studies have been carried out to examine different aspects of the sorption behavior of Sr on a variety of solid materials [2][3][4][5][6][7][8][9][10][11][12][13]. Whereas the sorption behavior of Sr 2+ on kaolinite was investigated in a limited number of studies [14][15][16][17], our literature survey did not yield information *Author for correspondence (E-mail: talalshahwan@iyte.edu.tr).…”

Section: Introductionmentioning

confidence: 99%

Characterization of Sr²⁺uptake on natural minerals of kaolinite and magnesite using XRPD, SEM/EDS, XPS, and DRIFT

Shahwan¹,

Erten²

2005

Radiochimica Acta

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Sr2+ / Kaolinite / Magnesite Summary. The sorption behavior of Sr 2+ ions on natural minerals rich in kaolinite and magnesite was studied using SEM/EDS, XPS, XRPD, AAS/AES and DRIFT techniques. Quantitative analysis of the XPS data shows that magnesite is more effective in Sr 2+ uptake than kaolinite. DRIFT spectra and XRPD patterns indicate that the structures of both minerals were not affected upon Sr 2+ sorption. Intercalation of DMSO in kaolinite lamellae aiming at increasing the interlayer space did not significantly enhance the sorption capacity of the clay towards Sr 2+ probably due to the lack of a negative charge on the accessible sites. EDS mapping indicated that while the sorbed Sr is equally distributed on surface of natural kaolinite, it was associated -to a larger extent -with the regions richer in Mg in the case of natural magnesite. Comparing the uptake mechanisms of natural magnesite with that of pure MgCO 3 , it was seen that while natural magnesite sorbed Sr 2+ mainly through an ion exchange type mechanism, the formation of SrCO 3 coprecipitate was detected on the surface of the MgCO 3 at higher loadings.

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“…Dans la solution du sol, le strontium se trouve sous forme de cation divalent Sr 2+ (Cole et al, 2000). Le strontium géochimique est assez fortement retenu sur les argiles et la matière Kd organique, avec une fraction labile allant de 0,1 à 1 % (Capo et al, 1998).…”

Section: Strontiumunclassified

Comportement de radionucléides (Cs, I, Sr, Se, Tc) dans le sol : proposition de valeurs de Kd par défaut

Roussel-Debet

Colle

2005

Radioprotection

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Diffusion mechanisms of multiple strontium species in clay

Cited by 65 publications

References 40 publications

A Methodology for Simulating Radionuclide Diffusion in Unsaturated Soils

A Methodology for Simulating Radionuclide Diffusion in Unsaturated Soils

Characterization of Sr²⁺uptake on natural minerals of kaolinite and magnesite using XRPD, SEM/EDS, XPS, and DRIFT

Comportement de radionucléides (Cs, I, Sr, Se, Tc) dans le sol : proposition de valeurs de Kd par défaut

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Diffusion mechanisms of multiple strontium species in clay

Cited by 65 publications

References 40 publications

A Methodology for Simulating Radionuclide Diffusion in Unsaturated Soils

A Methodology for Simulating Radionuclide Diffusion in Unsaturated Soils

Characterization of Sr2+uptake on natural minerals of kaolinite and magnesite using XRPD, SEM/EDS, XPS, and DRIFT

Comportement de radionucléides (Cs, I, Sr, Se, Tc) dans le sol : proposition de valeurs de Kd par défaut

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Characterization of Sr²⁺uptake on natural minerals of kaolinite and magnesite using XRPD, SEM/EDS, XPS, and DRIFT