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Saito, Tamotsu; Baba, Shinichi; Eto, Motokuni
JAERI-Research 99-070, p.21 - 0, 2000/01
JAERI-Research-99-070.pdf:1.32MB
no abstracts in English
*; Murakami, Hiroyuki
JAERI-Tech 94-034, 43 Pages, 1994/12
no abstracts in English
-ray in vaccum and in oxygen under; Seguchi, Tadao; Yoshida, Kenzo
EIM-84-136, p.75 - 84, 1984/00
no abstracts in English
-amino acid anhydride)materials treated under pressure-heat conditions and in vitro-in vivo degradation of hot-pressed materialsAsano, Masaharu; ; Kaetsu, Isao; *; *; *; *
J.Macromol.Sci.,Part A, 21(5), p.561 - 582, 1984/00
no abstracts in English
; ; *
Nihon Shokuhin Kogyo Gakkai-Shi, 24(2), p.59 - 64, 1977/02
no abstracts in English
*; Yamaguchi, Koichi; Machi, Sueo
JAERI-M 6068, 16 Pages, 1975/03
no abstracts in English
mixed saltShimoyama, Iwao; Honda, Mitsunori; Kogure, Toshihiro*; Okamoto, Yoshihiro; Yaita, Tsuyoshi; Suzuki, Shinichi
no journal, ,
X-ray fluorescence (XRF) and X-ray diffraction (XRD) were employed to study bulk composition and structure changes of weathered biotite (WB) before and after low-pressure sublimation processing with NaCl-CaCl mixed salt. XRF showed that almost all Cs was desorbed from Cs-saturated WB after heating at 700 
C under a low-pressure (14 Pa) and XRD showed that WB disappeared and augite appeared as the dominant product. We propose a new idea, Cs-free mineralization method, for reduction of Cs-contaminated soil in Fukushima based on these results.
Shimoyama, Iwao; Honda, Mitsunori; Kogure, Toshihiro*
no journal, ,
The decontamination method has not been established for soil contaminated with radioactive Cs. We adopted weathered biotite (WB) which sorbed non-radioactive 
Cs as a model contaminated soil and applied heating treatment to the WB at 700C under a low pressure condition of 14 Pa with NaCl-CaCl mixed salt. X-ray fluorescence analysis showed that almost all Cs and K were removed from the sample at 700C and Ca became dominant with temperature. X-ray diffraction spectra largely changed after the heating treatment indicating some phase transition from WB. Transmission electron microscopy analysis clarified that augite was the dominant product after the heating treatment at 700C. These results suggest a model that Ca derived from the mixed-salt induced the formation of augite, and that K
and Cs were eliminated from the product as these large-size cations cannot constitute augite. Based on this model, we propose Cs free mineralization which can achieve decontamination and reuse of soil in Fukushima.
