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Journal Articles

Numerical reproduction of dissolved U concentrations in a PO$$_{4}$$-treated column study of Hanford 300 area sediment using a simple ion exchange and immobile domain model

Saito, Tatsuo; Sato, Kazuhiko; Yamazawa, Hiromi*

Journal of Environmental Radioactivity, 237, p.106708_1 - 106708_9, 2021/10

 Times Cited Count:0 Percentile:0(Environmental Sciences)

We succeeded at numerical reproduction of dissolved U concentrations from column experiments with PO$$_{4}$$-treated Hanford 300 Area sediment. The time-series curves of dissolved U concentrations under various Darcy flow rate conditions were reproduced by the numerical model in the present study through optimization of the following parameters:(i) the mass of U in mobile domain (on surface soil connected to the stream) and the rest of the total U left as precipitation in immobile domain (isolated in deep soil);(ii) the mixing ratio between immobile and mobile domains, to fit the final recovering curve of concentration; and (iii) the cation exchange capacity (CEC$$_{Zp}$$) and equilibrium constant (k$$_{Zp}$$) of the exchange reaction of UO$$_{2}$$$$^{2+}$$ and H$$^{+}$$ on simulated soil surface ($$Zp$$), to fit the transient equilibrium concentration, forming the bed of the bathtub curve.

JAEA Reports

Separation and immobilization of Sr and Cs contained in acidic media by using inorganic ion-exchangers (literature survey)

Yamagishi, Isao

JAERI-Review 2001-027, 52 Pages, 2001/07

JAERI-Review-2001-027.pdf:3.59MB

The present study deals with the survey of inorganic ion-exchangers suitable for separation and immobilization of Sr and Cs contained in acidic high-level liquid waste. For separation and immobilization of Cs, crystalline silicotitanate seems to be the most promising exchanger. For selective separation of Sr, there is no promising exchanger up to now. Sintered ceramics are favorable waste forms of inorganic ion-exchangers. Their stabilities are largely influenced by composition of exchangers, qualities of ceramics and disposal scenario.

Journal Articles

Calibration of surveymeters for dose estimation with $$beta$$-ray sources simulating skin contamination

Yoshida, Makoto;

Hoken Butsuri, 28, p.187 - 193, 1993/00

no abstracts in English

Journal Articles

Application of thin membrane sources for preparation of $$beta$$-ray dose calibration sources in skin contamination measurement

Yoshida, Makoto; Murakami, Hiroyuki;

Proc. of the Int. Radiation Protection Association,Vol. 1, p.132 - 135, 1992/00

no abstracts in English

Journal Articles

Treatment of ion-exchange resins by fluidized bed incinerator equipped with copper oxide catalyst; Fundamental studies

*; Hirata, Masaru; Yahata, Taneaki

Journal of Nuclear Science and Technology, 28(3), p.228 - 238, 1991/03

no abstracts in English

Journal Articles

Development of a computer-controlled on-line rapid ion-exchange separation system

Tsukada, Kazuaki*; Otsuki, Tsutomu*; Sueki, Keisuke*; *; *; *; Nakahara, Hiromichi*; Shinohara, Nobuo; ; Usuda, Shigekazu; et al.

Radiochimica Acta, 51(2), p.77 - 84, 1990/00

no abstracts in English

Journal Articles

Desorption behavior of plutonium from anion-exchange resin with HNO$$_{3}$$-HI mixed acid solution

Usuda, Shigekazu; Sakurai, Satoshi; Hirata, Masaru; Umezawa, Hirokazu

Sep. Sci. Technol., 25(11-12), p.1225 - 1237, 1990/00

 Times Cited Count:1 Percentile:27.59(Chemistry, Multidisciplinary)

no abstracts in English

Journal Articles

Rapid ion-exchange separations of actinides

Journal of Radioanalytical and Nuclear Chemistry, 123(2), p.619 - 631, 1988/02

 Times Cited Count:23 Percentile:86.73(Chemistry, Analytical)

no abstracts in English

Journal Articles

Radial dispersion of a solute in the bed packed with ion-exchange resins

; Saito, Keiichiro; Shiba, Koreyuki

J.Chem.Eng.Jpn., 17(3), p.327 - 329, 1984/00

 Times Cited Count:1 Percentile:34.23(Engineering, Chemical)

no abstracts in English

Journal Articles

Immobilization of cesium-137 in cement-waste composites by addition of mineral zeolites

;

Health Physics, 34(6), p.643 - 648, 1978/06

 Times Cited Count:6

no abstracts in English

Journal Articles

Leaching of $$^{1}$$$$^{3}$$$$^{7}$$Cs from the ion-exchange resin incorporated in polyethylene or cement composite

; ;

Health Physics, 32(6), p.549 - 552, 1977/06

no abstracts in English

Journal Articles

Preparation of permselective membrane by radiation processing

Machi, Sueo

Hoshasen Kagaku, 12(24), p.18 - 23, 1977/00

no abstracts in English

Journal Articles

Influence of differences in resin-metrix structure in ion-exchange adsorption of trace amounts of Ag(I),Co(II) and Cr(III)

; Wadachi, Yoshiki

Journal of Nuclear Science and Technology, 12(6), p.344 - 349, 1975/06

 Times Cited Count:1

no abstracts in English

Journal Articles

Sequential ion-exchange separation of heavy elements and selected fission products for burnup measurement

; Umezawa, Hirokazu; ; ; ;

Journal of Nuclear Science and Technology, 9(12), p.737 - 742, 1972/12

no abstracts in English

Oral presentation

Removal investigation of N,N-dialkylamide degradation products by ion-exchange resin

Suzuki, Shinichi; Kobayashi, Toru; Yaita, Tsuyoshi

no journal, , 

18 (Records 1-18 displayed on this page)
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