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無機吸着剤による塩化ナトリウム水溶液中のCs吸着特性

Adsorption properties of Cs by inorganic adsorbents in sodium chloride solution

伴 康俊  ; 山岸 功 ; 森田 泰治  

Ban, Yasutoshi; Yamagishi, Isao; Morita, Yasuji

5種類の無機吸着剤(CST:(Crystalline SilicoTitanate)粉末,CST顆粒,合成モルデナイト粉末,合成モルデナイト顆粒、及び天然モルデナイト)に対して、バッチ法によるNaCl水溶液中のCs吸着試験を室温にて実施した。溶液量(ml)と吸着剤量(g)の比が100ml/gの条件において、バッチ試験後におけるCs濃度は初期Cs濃度と比較して低下し、本研究で用いた吸着剤がNa$$^{+}$$及びCl$$^{-}$$イオンの存在下においてもCs$$^{+}$$イオンを吸着することを確認した。

Adsorption of Cs with five types of inorganic adsorbents (CST: Crystalline SilicoTitanate) powder, CST grain, synthetic mordenite powder, synthetic mordenite grain, and natural mordenite) was carried out by batch methods in the aqueous solution of NaCl at room temperature, respectively. The concentration of Cs after the batch experiments decreased compared with the initial concentration of Cs when the ratio of the solution volume (ml) to the amount of the adsorbent (g) was 100 ml/g, and it was confirmed that the adsorbents used in the present study adsorbed Cs$$^{+}$$ ion in the presence of Na$$^{+}$$ and Cl$$^{-}$$ ions.

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