Diffusion behavior of humic acid in compacted bentonite

Iijima, Kazuki ; Yoshikawa, Hideki; Kurosawa, Seiichi*

Diffusion behavior of humic acid in compacted bentonite was investigated with Kunigel V1 in 0.1M NaCl solution. In case of 1.2 Mg/m $^{3}$ of dry density, breakthrough of the fumic acid was observed after 100 days. On the other hand, in case of 1.6 and 1.8 of dry density, no breakthrough was observed even after 500 days. Based on the measurement of size distribution of humic acid by GPC, it is suggested that relatively bigger humic acid cannot diffuse but smaller one due to the filtration effect of compacted bentonite.

Language	:	Japanese
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Meeting title	:	日本原子力学会2007年春の年会
Held date	:	2007/03
Location (city)	:	名古屋
Location (country)	:	日本
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Keywords	:	no keyword
Research Facility	:	ENTRY(地層処分基盤研究施設)
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Registration No. : BB20062951
JAEA Abstracts No. :
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