Sorption of Pd on illite, MX-80 bentonite and shale in Na ? Ca ? Cl solutions

Jared Goguen; Andrew Walker; Joshua Racette; Justin Riddoch; Shinya Nagasaki

doi:https://doi.org/10.1016/j.net.2020.09.001

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자료유형: 학술저널

저자정보: Jared Goguen (McMaster University) Andrew Walker (McMaster University) Joshua Racette (McMaster University) Justin Riddoch (McMaster University) Shinya Nagasaki (McMaster University)

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제53권 제3호

발행연도: 2021.3

수록면: 894 - 900 (7page)

DOI: https://doi.org/10.1016/j.net.2020.09.001

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This paper examines sorption of Pd(II) onto illite, MX-80 bentonite, and Queenston shale in NaeCaeClsolutions of varying ionic strength (IS) from 0.01 to 6.0 mol/L (M) and pHc ranging from 3 to 9 underatmospheric conditions. A 2-site protolysis non-electrostatic surface complexation and cation exchangemodel was applied to the Pd sorption onto illite and MX-80 using PHREEQC, and the model results werecompared to the experimental ones obtained in this work. Surface complexation and cation exchangeconstants were estimated for both illite and MX-80 through the optimization process to bring the predicted distribution coefficients from the model into alignment with the experimentally derived values. These optimized surface complexation constants were compared to existing linear free energy relationships (LFER).

#Sorption #Sorption distribution coefficient #2SPNE SC/CE model #PHREEQC #Geological disposal #Palladium

참고문헌 (35)

참고문헌 신청

J. Noronha / 2016 / Deep Geological Repository Conceptual Design Report, Crystalline/Sedimentary Rock Environment

2002 / Nuclear Fuel Waste Act :23

P. Vilks / 2018 / Sorption of Selected Radionuclides on Sedimentary Rocks in Saline Conditions - Updated Sorption Values, Technical Report

P. Vilks / 2014 / Sorption Studies with Sedimentary Rocks under Saline Conditions, Technical Report

T. L. Rakitskaya / 2017 / Some features of Pd(II)and Cu(II)adsorption on bentonite / Adsorpt. Sci. Technol 35(5-6):482~489

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