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Takahashi, Manabu*; Tanaka, Kazuya*; Tamada, Masao; Aoi, Toru*
Kankyo Kogaku Kenkyu Rombunshu, Vol.41, p.229 - 235, 2004/11
Fibrous metal adsorbent having iminodiacetic acid was synthesized by radiation-induced grafting glycidyl methacrylate on nonwoven fabric and subsequent chemical treatment. The degree of grafting calculated by increasing weight after grafting reached 170 % for reaction time of 2h at 40 
C. The adsorption characteristics of ferric and manganese ions were evaluated by using the resulting adsorbent with 2.1 mmol/g-adsorbent function group of iminodiacetic acid. Each distribution coefficient of ferric and manganese ion deceased with increase of another coexist ion. Both ferric and manganese ions were completely removed by the adsorbent column at the space velocity of 1000h
. Adsorption capacities of both ions were reduced to 80% after 5 times reputation of adsorption and desorption.
Basuki, F.*; Seko, Noriaki; Tamada, Masao; Sugo, Takanobu; Kume, Tamikazu
Nihon Ion Kokan Gakkai-Shi, 14(Suppl.), p.209 - 212, 2003/00
Radiation induced graftpolymerization is a sophisticated tool for introducing the aiming functional group into the conventional polymer. Adsorbent having phosphoric acid was directly synthesized by grafting methacrylate monomer having phosphoric acid onto polyethylene nonwoven fabric. Degree of grafting, which was estimated by increment weight after grafting, reached 185 % when the 10 % monomer in the mixture of 10 % methanol and 90 % water was reacted with 200 kGy-irradiated polyethylene nonwoven fabric. The resulting adsorbent revealed that adsorption capacities were 3 mmol/g-adsorbent for Pb and Cd. The removal of these metals could be performed with space velocity of 250 h.
Jo, Akinori*; Okada, Kenji*; Nakao, Mitsuhiro*; Sugo, Takanobu; Tamada, Masao; Katakai, Akio
Nihon Ion Kokan Gakkai-Shi, 14(Suppl.), p.69 - 72, 2003/00
The titled bifunctional fiber (FVCPS-f) were prepared by treating chloromethylated vinylbiphenyl-grafted polyethylene-coated polypropylene fiber (0.9 denier, length 3.8 cm) with triethyl phosphite, chlorosulfonic acid, and conc. hydrochloric acid, in successive. Phosphorus and sulfur contents of FVCPS-f were 1.8 and 0.7 mmol/g, respectively (acid capacity 4.2 meq/g). Its breakthrough capacity (BC) for Fe(III) gradually decreased with an increase in flow rate of feeds from 20/h to 1000/h in space velocity (SV); for instance, its BC at a SV 1000/h was 0.12 mmol/g, whereas both a commercially available phosphonate resin and a monofunctional phosphonate fiber were not able to give practically meaningful BC at such an extremely high flow rate.
L.Donnet*; Morita, Yasuji; Yamagishi, Isao; Kubota, Masumitsu
JAERI-Research 98-058, 63 Pages, 1998/10
JAERI-Research-98-058.pdf:2.19MB
no abstracts in English
Baba, Atsushi*; Nishikawa, Masabumi*; Kawamura, Yoshinori; Okuno, Kenji
Journal of Nuclear Materials, 248, p.106 - 110, 1997/09
Times Cited Count：4 Percentile：37.09(Materials Science, Multidisciplinary)no abstracts in English
Takebe, Shinichi; Mukai, Masayuki; Komiya, Tomokazu; Kamiyama, Hideo
JAERI-M 93-034, 15 Pages, 1993/02
no abstracts in English
