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Removal of europium on GMZ bentonite corroded by young cement water at different temperatures

Abstract : After construction of the high-level radioactive waste repository, the bentonite undergoes corrosion of the alkaline solution produced by cement degradation. Young cement water-YCW was employed to carry out the corrosion experiments on compacted GMZ bentonite specimens. Then the removal of europium (Eu(III)) onto corroded GMZ bentonite was studied by batch experiments. The results show the YCW corroded GMZ bentonite is still an effective adsorbent. The adsorption reaction of Eu(III) on corroded GMZ bentonite is endothermic. It can be described by Langmuir isotherm model well. The bentonite corroded at higher temperature shows more stable sorption property.
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https://hal.archives-ouvertes.fr/hal-01982160
Contributor : Yu-Jun Cui <>
Submitted on : Tuesday, January 15, 2019 - 2:37:26 PM
Last modification on : Tuesday, December 8, 2020 - 10:20:38 AM

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Zhao Sun, Yong-Gui Chen, Yu-Jun Cui, Wei-Min Ye, Dong-Bei Wu. Removal of europium on GMZ bentonite corroded by young cement water at different temperatures. Journal of Radioanalytical and Nuclear Chemistry, Springer Verlag, 2018, 318 (2), pp.1297-1305. ⟨10.1007/s10967-018-6175-8⟩. ⟨hal-01982160⟩

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