• help
  • PC | SP
  • JP | EN
          
Refine your search：     
Report No.
 - 
Clear All
Return to the previous page

Distribution coefficients of iodine and tin on granodiorite and tuffaceous sandstone specimens

Hemmi, Ko ; Yamaguchi, Tetsuji ; Iida, Yoshihisa 

Iodine and tin are important elements in performance assessment of geological disposal of radioactive wastes. Sorption experiments of iodine were carried out under varying nitrate concentration with a range of 0 to 5 mol dm$$^{-3}$$ at neutral pH range in order to determine the distribution coefficient of iodine was zero or non-zero value. The experimental results with estimated statistical errors showed non-zero values for tuffaceous sandstone except for NaNO$$_{3}$$ concentration 0.5 mol dm$$^{-3}$$. Non-zero values were also obtained under NaNO$$_{3}$$ concentrations higher than 0.5 mol dm$$^{-3}$$ for granodiorite. Sorption experiments of tin were carried out at high pH range in order to check whether the distribution coefficient of tin decreases significantly with pH as a result of formation of anionic hydrolysis species of tin. The distribution coefficients of tin on granodiorite decreased from 9.79$$times$$10$$^{-2}$$ m$$^{3}$$ kg$$^{-1}$$ at pH10.4 to 2.46$$times$$10$$^{-3}$$ m$$^{3}$$ kg$$^{-1}$$ at pH12.4. The distribution coefficient of tin on tuffaceous sandstone was about one order of magnitude higher (about 2$$times$$10$$^{-2}$$ m$$^{3}$$ kg$$^{-1}$$) than that of granodiorite at pH around 12.4.

Language

 :

Japanese

Journal

 :

Genshiryoku Bakkuendo Kenkyu (CD-ROM)

Volume

 :

22

Number

 :

1

Pages

 :

p.3 - 10

Publication Year/Month

 :

2015/06

Meeting title

 :

Held date

 :

Location (city)

 :

Location (country)

 :

Patent information

 :

PDF

 :


Paper URL

 :

https://doi.org/10.3327/jnuce.22.3

DOI for research data

 :

Keywords

 :

ヨウ素; スズ; 分配係数; 収着; 凝灰質砂岩; 花崗閃緑岩

Research Facility

 :

BECKY(バックエンド研究施設)  

Press Release

 :

Article of JAEA R&D Review

 :

Investigation of the Sorption of Radioactive Iodine onto Rocks; Experimental Determination of the Sorption Distribution Coefficient[/]

Cooperating Institute

 :

原子力安全・保安院(現原子力規制庁)

Accesses

 :

- Accesses

InCites™

 :

Altmetrics

 :

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.

Return to the previous page