Batch study of 85Sr adsorption from synthetic seawater solutions using phosphate sorbents

Natalja V. Kitikova; Andrei I. Ivanets; Irina L. Shashkova; Artsiom V. Radkevich; Lyudmila V. Shemet; Lyudmila V. Kul’bitskaya; Mika Sillanpää

doi:10.1007/s10967-017-5592-4

Batch study of ⁸⁵Sr adsorption from synthetic seawater solutions using phosphate sorbents

Natalja V. Kitikova, Andrei I. Ivanets, Irina L. Shashkova, Artsiom V. Radkevich, Lyudmila V. Shemet, Lyudmila V. Kul’bitskaya, Mika Sillanpää

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

Sorption of the ⁸⁵Sr radionuclide from model seawater solutions on phosphate sorbents was studied. Sorbents were synthesized using natural dolomite by various methods. Effects of salinity and pH of solutions on the degree of sorption and the distribution coefficient of the ⁸⁵Sr were investigated. Hydrolytic stability, phase transformation of sorbents in model seawater solutions and change of the pH_pzc were established with the aim of identifying factors, which influence on the sorption efficiency towards the ⁸⁵Sr radionuclide. The best sorption parameters in all range of salt concentration were obtained for sorbent containing tertiary calcium and magnesium phosphates and magnesium–ammonium phosphates.

Original language	English
Pages (from-to)	2437-2447
Number of pages	11
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume	314
Issue number	3
DOIs	https://doi.org/10.1007/s10967-017-5592-4
Publication status	Published - 1 Dec 2017
Externally published	Yes

Keywords

Ca and Mg phosphates
Competing ions
Modeling seawater
Sorption
Sr

ASJC Scopus subject areas

Analytical Chemistry
Nuclear Energy and Engineering
Radiology, Nuclear Medicine and Imaging
Pollution
Spectroscopy
Public Health, Environmental and Occupational Health
Health, Toxicology and Mutagenesis

Access to Document

10.1007/s10967-017-5592-4

Cite this

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title = "Batch study of 85Sr adsorption from synthetic seawater solutions using phosphate sorbents",

abstract = "Sorption of the 85Sr radionuclide from model seawater solutions on phosphate sorbents was studied. Sorbents were synthesized using natural dolomite by various methods. Effects of salinity and pH of solutions on the degree of sorption and the distribution coefficient of the 85Sr were investigated. Hydrolytic stability, phase transformation of sorbents in model seawater solutions and change of the pHpzc were established with the aim of identifying factors, which influence on the sorption efficiency towards the 85Sr radionuclide. The best sorption parameters in all range of salt concentration were obtained for sorbent containing tertiary calcium and magnesium phosphates and magnesium–ammonium phosphates.",

keywords = "Ca and Mg phosphates, Competing ions, Modeling seawater, Sorption, Sr",

author = "Kitikova, {Natalja V.} and Ivanets, {Andrei I.} and Shashkova, {Irina L.} and Radkevich, {Artsiom V.} and Shemet, {Lyudmila V.} and Kul{\textquoteright}bitskaya, {Lyudmila V.} and Mika Sillanp{\"a}{\"a}",

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doi = "10.1007/s10967-017-5592-4",

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T1 - Batch study of 85Sr adsorption from synthetic seawater solutions using phosphate sorbents

AU - Kitikova, Natalja V.

AU - Ivanets, Andrei I.

AU - Shashkova, Irina L.

AU - Radkevich, Artsiom V.

AU - Shemet, Lyudmila V.

AU - Kul’bitskaya, Lyudmila V.

AU - Sillanpää, Mika

PY - 2017/12/1

Y1 - 2017/12/1

N2 - Sorption of the 85Sr radionuclide from model seawater solutions on phosphate sorbents was studied. Sorbents were synthesized using natural dolomite by various methods. Effects of salinity and pH of solutions on the degree of sorption and the distribution coefficient of the 85Sr were investigated. Hydrolytic stability, phase transformation of sorbents in model seawater solutions and change of the pHpzc were established with the aim of identifying factors, which influence on the sorption efficiency towards the 85Sr radionuclide. The best sorption parameters in all range of salt concentration were obtained for sorbent containing tertiary calcium and magnesium phosphates and magnesium–ammonium phosphates.

AB - Sorption of the 85Sr radionuclide from model seawater solutions on phosphate sorbents was studied. Sorbents were synthesized using natural dolomite by various methods. Effects of salinity and pH of solutions on the degree of sorption and the distribution coefficient of the 85Sr were investigated. Hydrolytic stability, phase transformation of sorbents in model seawater solutions and change of the pHpzc were established with the aim of identifying factors, which influence on the sorption efficiency towards the 85Sr radionuclide. The best sorption parameters in all range of salt concentration were obtained for sorbent containing tertiary calcium and magnesium phosphates and magnesium–ammonium phosphates.

KW - Ca and Mg phosphates

KW - Competing ions

KW - Modeling seawater

KW - Sorption

KW - Sr

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