The Efficiency of Strontium-90 Desorption Using Iron (III) Solutions in the Decontamination Process of Radioactive Soils

• Autorzy: Cheremisina O. , Sergeev V. , Alabusheva V. , Fedorov A. , Iliyna A.

Identyfikatory

DOI

10.12911/22998993/81838

• Języki publikacji: EN

Abstrakty

EN

The paper presents the investigation on the estimated efficiency of iron (III) chloride solutions in the decontamination process of radioactive soils with ⁹⁰Sr, according to kinetic and thermodynamic characteristics of the desorption process. The specific ⁹⁰Sr radioactivity of soil samples was (3.9±0.3)·10⁴ Bq·g. The adsorption isotherms of Sr²⁺ and Fe³⁺ are described with the Langmuir equation. The values of Gibbs energy G⁰₂₉₈ = -4.65 kJ·mol^-1 and equilibrium ion exchange constant Keq = 6,5 confirm the hypothesis of strontium removal from soils with iron (III) cations. The effectiveness of the method is substantiated by experimental and calculated results of this study samples of radioactive soils are deactivated in 90% after 9.5 hours, whereas the kinetic constant is 6.77·10 s^-1. The suggested method of soil cleanup with 0.2 M Fe³⁺ solutions is optimal and complies with the environmental requirements.

Słowa kluczowe

EN

decontamination of radionuclides; thermodynamic investigations; kinetics investigations; desorption of strontium-90; iron (III) chloride

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology
• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2018
• Tom: Vol. 19, nr 2
• Strony: 149--153
• Opis fizyczny: Bibliogr. 9 poz., tab., rys.

Twórcy

autor

Cheremisina O.

• Department of Physical Chemistry, Saint Petersburg Mining University, Saint-Petersburg, 21 Line 2, 199106, Russian Federation

autor

Sergeev V.

• Department of Physical Chemistry, Saint Petersburg Mining University, Saint-Petersburg, 21 Line 2, 199106, Russian Federation

autor

Alabusheva V.

• Department of Physical Chemistry, Saint Petersburg Mining University, Saint-Petersburg, 21 Line 2, 199106, Russian Federation

autor

Fedorov A.

• Department of Physical Chemistry, Saint Petersburg Mining University, Saint-Petersburg, 21 Line 2, 199106, Russian Federation

autor

Iliyna A.

• Department of Physical Chemistry, Saint Petersburg Mining University, Saint-Petersburg, 21 Line 2, 199106, Russian Federation

Bibliografia

• 1. Bobovnikova Ts.I., Virchenko E.P., Konoplev A.V. 1990. Chemical deportments of long-lived radionuclides and their transformation in the soils of the Chernobyl accident area. Soil Science, 10, 20–25.
• 2. Bondarenko G.N., Kononenko L.V. 2001. Kinetics of 90Sr and 137Cs deportments transformation in soils. Mineralogy Journal, 3, 48–57.
• 3. Bulgakov A.A. 1998. Prediction methods of 90Sr and 137Cs distribution in natural soil-water systems. Extended abstract of dissertation. Vernadsky Institute of Geochemistry and Analytical Chemistry of Russian Academу of Sciences.
• 4. Chirkst D.E., Chaliyan K.N., Chaliyan A.G. 1994. Thermodynamics study of radioactive 137Cs soils deactivation after the Chernobyl accident. Radiochemistry, 36 (5), 459–462.
• 5. Chirkst D.E., Cheremisina O.V., Ivanov M.V. 2003. Thermodynamics study of iron (III) cations sorption on clay materials. JAC, 76(6), 992–925.
• 6. Martyushov V.V., Spirin D.A., Bazilev V.V., Fedorova T.A. 1995. The forms of radionuclides in the soils of East-Ural Radioactive Trace, Ecology, 2, 110–113.
• 7. Ningping L., Mason C.F. 2001. Sorption-desorption behavior of strontium-85 onto montmorillonite and silica colloids. Applied Geochemistry, 16(14), 1653–1662.
• 8. Rohwedder J.R., Cadore S., Abate G., Grassi M.T. 2014. Montmorillonite and vermiculite as solid phases for the preconcentration of trace elements in natural waters: Adsorption and desorption studies of As, Ba, Cu, Cd, Co, Cr, Mn, Ni, Pb, Sr, V, and Zn. Applied Clay Science, 99, 289–296.
• 9. Thermodynamic constants of materials: the book of references. 1981. Edited by Glushko V.P. USSR, 1–10.

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).