Development of evaluation code for microbial effect on HLW disposal, 2; Sensitivity analysis of microbial colloid effects on radionuclide transport by COLFRAC

Ise, Kotaro; Ito, Tsuyoshi; Amano, Yuki ; Yoshikawa, Hideki

To evaluate microbial colloid-facilitated radionuclide transport in fractured porous media, we conducted sensitivity analyses using a two dimentional numerical code, COLFRAC-mrl. The targeted domain is 100 0.2 m granitic rock which contain strait fracture in the center. The fracture aperture was set to 1.1810 $^{-3}$ m and groundwater velocity in the fracture was set to 50 m/y. The results of sensitivity analyses showed that if there are microbe in the order of 10 $^{10}$ cells/L in the groundwater, these microbe have possibilities to facilitate radionuclide transport.

Language	:	Japanese
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Meeting title	:	日本原子力学会2014年春の年会
Held date	:	2014/03
Location (city)	:	東京
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. : BB20132847
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