Americium sorption on smectite-rich natural clay from granitic ground water

Kumar, Sumit; Pente, A.S.; Bajpai, R.; Kaushik, C.P.; Tomar, B. S.

doi:10.1016/j.apgeochem.2013.05.016

Applied Geochemistry

2013

DOI: 10.1016/j.apgeochem.2013.05.016

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Americium sorption on smectite-rich natural clay from granitic ground water

Sumit Kumar¹,

A.S. Pente²,

R. Bajpai³

et al.

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Cited by 27 publications

(1 citation statement)

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“…s -OH만으로 해석이 불가능하다(Guo et al, 2009;Kumar et al, 2013). 따라서, 수착 용량이 더 큰 S w -OH 의 표면 착화반응 (S w -OEu 2+ , S w -OEuOH + , S w -OEu(OH) 3 − , S w -OEuCO 3 )을 추가하여 고농도에서의 유로 피움 수착을 해석하였다.…”

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Review of Thermodynamic Sorption Model for Radionuclides on Bentonite Clay

Hwang,

Kim,

Han

et al. 2023

Econ. Environ. Geol.

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Bentonite, predominantly consists of expandable clay minerals, is considered to be the suitable buffering material in high-level radioactive waste disposal repository due to its large swelling property and low permeability. Additionally, the bentonite has large cation exchange capacity and specific surface area, and thus, it effectively retards the transport of leaked radionuclides to surrounding environments. This study aims to review the thermodynamic sorption models for four radionuclides (U, Am, Se, and Eu) and eight bentonites. Then, the thermodynamic sorption models and optimized sorption parameters were precisely analyzed by considering the experimental conditions in previous study. Here, the optimized sorption parameters showed that thermodynamic sorption models were related to experimental conditions such as types and concentrations of radionuclides, ionic strength, major competing cation, temperature, solid-to-liquid ratio, carbonate species, and mineralogical properties of bentonite. These results implied that the thermodynamic sorption models suggested by the optimization at specific experimental conditions had large uncertainty for application to various environmental conditions.

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Review of Thermodynamic Sorption Model for Radionuclides on Bentonite Clay

Hwang,

Kim,

Han

et al. 2023

Econ. Environ. Geol.

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Sorption of americium from low-level liquid wastes by nanocrystalline MnO2

Bhagyashree

Kar

Kasar

et al. 2014

J Radioanal Nucl Chem

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Sorption studies of radionuclides on argillaceous clays of Cuddapah System

Patel

Kar

Garg

et al. 2017

J Radioanal Nucl Chem

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Americium sorption on smectite-rich natural clay from granitic ground water

Cited by 27 publications

References 23 publications

Review of Thermodynamic Sorption Model for Radionuclides on Bentonite Clay

Review of Thermodynamic Sorption Model for Radionuclides on Bentonite Clay

Sorption of americium from low-level liquid wastes by nanocrystalline MnO2

Sorption studies of radionuclides on argillaceous clays of Cuddapah System

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