The Effect of Compaction of Na-montmorillonite on the Solubility, Diffusivity, and Sorption Capability of Ions due to Specific Pore Water Chemistry(Clays and Environment,Proceedings of the 13^<th> International Clay Conference)

スポンサーリンク

概要

• 論文の詳細を見る

• Compacted bentonite is a potential candidate buffer material for use in high-level radioactive waste disposal. Although the physico-chemical properties for the compacted form are required to assure the safety function of the system, experimental evidence is quite limited. Electro-migration experiments using tetra-alkyl-ammomum cations having different hydrated ionic radii and osmotic pressure measurements were performed to receive information on the solid/liquid interface in pore water under non-destructive conditions of the highly compacted bentonite (Na-montmorillonite 99%). The results indicated the pore water was strongly influenced by the solid surface and may not be treated as common free water. The geochemical code MINEQL was significantly revised to model the solubility, diffusivity and sorption coefficient simultaneously under consolidated condition. Calculations showed good accordance with the experimental information and the validity of the revision of MINEQL was demonstrated.

• 日本粘土学会の論文

著者

• Ohe Toshiaki

  Dept. Applied Science Tokai University

関連論文

• The Effect of Compaction of Na-montmorillonite on the Solubility, Diffusivity, and Sorption Capability of Ions due to Specific Pore Water Chemistry(Clays and Environment,Proceedings of the 13^ International Clay Conference)

スポンサーリンク