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Effect of dry density pH on the diffusion behavior of lanthanum in compacted Chinese GMZ bentonite
Abstract : Diffusion experiments in compacted GaoMiaoZi (GMZ) bentonite were performed with La(III) using the in-diffusion method, the effects of dry density pH were emphasized. The apparent diffusion coefficient (D (a)) was obtained at the end of the experiment. D (a) decreases with increasing dry density of 1.3-1.7 Mg m(-3) as well as slightly decreases as pH increases from 3.6 to 8.9. The D (a) range is (2-16) x 10(-12) m(2) s(-1) under the experimental conditions. The distribution coefficients (K (d)) for La(III) in compacted GMZ bentonite are much smaller than those on powdered bentonite obtained from batch experiments.
https://hal-enpc.archives-ouvertes.fr/hal-01573707
Contributeur : Romain Boistel <>
Soumis le : jeudi 10 août 2017 - 14:23:50
Dernière modification le : vendredi 17 juillet 2020 - 17:08:46
Contributeur : Romain Boistel <>
Soumis le : jeudi 10 août 2017 - 14:23:50
Dernière modification le : vendredi 17 juillet 2020 - 17:08:46