2019 Fall Meeting

Presentation information

Oral presentation

V. Nuclear Fuel Cycle and Nuclear Materials » 505-2 Waste Disposal and Its Environmental Aspects

[1C08-10] Natural Barrier

Wed. Sep 11, 2019 2:45 PM - 3:35 PM Room C (Common Education Bildg. 1F C13)

Chair:Taiji Chida(Tohoku Univ.)

3:15 PM - 3:30 PM

[1C10] Evaluation of Migration Behavior of Colloids in the Natural Barrier around the waste facilities.

*Yosuke Akagi1, Toshiyuki Nakazawa1, Kohei Yamaguchi1, Hisao Sato1, Takumi Saito2, Naoyuki Tamura3, Naoki Yoshii3, Takashi Kozawa3 (1. Mitsubishi Materials Corporation, 2. The university of Tokyo, 3. Japan Nuclear Fuel Limitd)

Keywords:Natural barrier, Pore structure, Colloids, Filtration effect

In order to evaluate the filtration effect of colloids in the natural barrier where around the low-level radioactive waste disposal facility, a colloids permeation experiments were carried out using polystyrene latex colloids and the rock sample prepared as not to disturb the pore structure. Based on the experimental results, colloids permeability is considered to be affected by the characteristics of rock pore structure.