STUDY ON ANISOTROPY OF EFFECTIVE DIFFUSION COEFFICIENT AND ACTIVATION ENERGY FOR DEUTERATED WATER IN COMPACTED SODIUM BENTONITE

Schematic illustration of the flow-through diffusion system across compacted bentonite. Diffusion analysis of deuterated water with typical breakthrough curves. Evaluation of porosity by Archie's law and effective diffusion by Arrhenius hypothesis. Discussion on the influence of pore structure and microstructures on diffusion mechanism of deuterated water in bentonite.