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Kozai, Naofumi; Sato, Junya; Osugi, Takeshi; Shimoyama, Iwao; Sekine, Yurina; Sakamoto, Fuminori; Onuki, Toshihiko
Journal of Hazardous Materials, 416, p.125965_1 - 125965_9, 2021/08
Times Cited Count：24 Percentile：85.21(Engineering, Environmental)Kozai, Naofumi; Suzuki, Shinichi; Aoyagi, Noboru; Sakamoto, Fuminori; Onuki, Toshihiko
Water Research, 68, p.616 - 626, 2015/01
Times Cited Count：20 Percentile：60.58(Engineering, Environmental)The radioactive fallout cesium (
Cs) in the sewage sludge ashes (SSAs) produced after the Fukushima Daiichi Nuclear Accident was tested. Two of tested five SSAs contained Cs above the radioactivity criterion for controlled landfill disposal in Japan. The minerals of SSAs are divided into two groups: an HCl-soluble phase mainly composed of phosphates and metal oxides; and silicates. The majority of Cs was contained in the HCl-soluble phase. Among the HCl-soluble subphases, Fe-bearing phases, probably iron oxides, were mainly responsible for Cs retention. Pre-pulverizing SSAs and heating them in an aqueous HCl was the most effective method of dissolving the HCl-soluble phase. The radioactivity concentrations of Cs in all the HCl-treatment residues were below the criterion. This residue was mostly composed of silicates. Static leaching tests of the residue revealed that Cs is very stably immobilized in the silicates.
Hashimoto, Shoji
Hoshasen Riyo Ni Okeru Saikin No Shimpo, p.173 - 182, 2000/06
no abstracts in English
Tokunaga, Okihiro
Genshiryoku eye, 44(8), p.27 - 30, 1998/08
no abstracts in English
N.Sermkiathipong*; S.Pongpat*; Hashimoto, Shoji; C.Banditsing*; Ito, Hitoshi
Biocontrol Science, 2(2), p.55 - 60, 1997/00
no abstracts in English
JAERI-Research 95-006, 65 Pages, 1995/02
JAERI-Research-95-006.pdf:2.58MB
no abstracts in English
Hashimoto, Shoji
Genshiryoku Kogyo, 41(7), p.47 - 52, 1995/00
no abstracts in English
S.Pongpat*; Hashimoto, Shoji
JAERI-M 93-042, 16 Pages, 1993/03
no abstracts in English
Hashimoto, Shoji; Mosharraf*
Gesuido Kenkyukai Hokokusho, No.15, 0, p.24 - 26, 1993/00
no abstracts in English
Hashimoto, Shoji
Gesuido Kenkyukai Hokokusho, No.14, 0, p.27 - 29, 1992/00
no abstracts in English
Hashimoto, Shoji
Proceedings of the International Conference on Evolution in Beam Applications, 0, p.466 - 469, 1992/00
no abstracts in English
Watanabe, Hiroshi
Baio Denji Kougaku To Sono Ouyou, 0, p.648 - 655, 1991/00
no abstracts in English
Hashimoto, Shoji; *; *
Hoshasen Purosesu Shimpojiumu Koen Yoshishu, 0, p.51 - 54, 1991/00
no abstracts in English
N.Sermkiattipong*; Ito, Hitoshi; Hashimoto, Shoji
JAERI-M 90-145, 26 Pages, 1990/09
no abstracts in English
Hashimoto, Shoji
Heisei Gannendo Gummaken Gesuido Kenkyukai Hokokusho, No.12, p.43 - 44, 1990/00
no abstracts in English
Hashimoto, Shoji; Nishimura, Koichi; *; *
Water Science and Technology, 23, p.1991 - 1999, 1990/00
no abstracts in English
Hashimoto, Shoji; Nishimura, Koichi
Gummaken Gesuido Kenkyukai Hokokusho, Showa-62-Nendo, p.50 - 52, 1988/00
no abstracts in English
Machi, Sueo; Hashimoto, Shoji
Odei Kenkyu Nempo, p.60 - 66, 1988/00
no abstracts in English
;
Gummaken Gesuido Kenkyukai Hokokusho, Showa-61-Nendo, No.9, p.46 - 48, 1987/09
no abstracts in English
Hashimoto, Shoji; Machi, Sueo
Suido Koron, 23(9), p.73 - 75, 1987/00
no abstracts in English
