Geofluids / 2017 / Article / Tab 2 / Research Article
Effect of Water Saturation on the Diffusion/Adsorption of 22 Na and Cesium onto the Callovo-Oxfordian Claystones Table 2 Values of distribution coefficient (K D D e 22 Na for various imposed suction values on intact materials. Values between brackets indicate the uncertainty ranges.
Sample state Species Diffusion method Saturation degree (%) K D −1 )2 s−1 )Intact 22 Na+ Through-diffusion, incoming flux & upstream 100 0.79 (0.53–0.90) 4.85 (3.80–5.80) Intact 22 Na+ Out-diffusion upstream 100 0.70 (0.60–0.76) 5.50 (5.0–6.0) Intact 22 Na+ Out-diffusion downstream 100 0.75 (0.60–0.77) 5.50 (5.0–7.0) Intact 22 Na+ Through-diffusion, incoming flux 89 0.78 (0.55–0.88) 1.4 (1.35–1.45) Intact 22 Na+ Through-diffusion, upstream 89 0.94–1.14 1.4–1.50 Intact 22 Na+ Out-diffusion upstream 89 0.94 (0.84–1.03) 0.50 (0.30–0.60) Intact 22 Na+ Out-diffusion downstream 89 1.10 (1.0–1.20) 1.0 (0.9–1.1) Intact 22 Na+ Through-diffusion, incoming flux 86 0.48 (0.38–0.75) 0.47 (0.35–0.60) Intact 22 Na+ Through-diffusion, upstream 86 1.05–1.60 0.47–0.80 Intact 22 Na+ Out-diffusion upstream 86 0.71 (0.60–0.78) 0.35 (0.25–0.45) Intact 22 Na+ Out-diffusion downstream 86 0.97 (0.88–1.06) 0.55 (0.5–0.65) Intact 22 Na+ Through-diffusion, incoming flux 81 0.31 (0.26–0.61) 0.28 (0.20–0.38) Intact 22 Na+ Through-diffusion, upstream 81 1.10–1.80 0.28–0.50 Intact 22 Na+ Out-diffusion upstream 81 0.48 (0.44–0.52) 0.15 (0.10–0.20) Intact 22 Na+ Out-diffusion downstream 81 0.68 (0.61–0.76) 0.30 (0.25–0.35)
