Adsorption Properties of Europium on Granulated α-Zirconium Phosphate
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概要
- 論文の詳細を見る
Adsorption behavior of Eu<SUP>3+</SUP> on granulated a-zirconium phosphate (α-ZrP) has been studied by batch and column methods. The distribution coefficients (K<SUB>d</SUB>) of Eu<SUP>3+</SUP> into α-ZrP increased with equilibrium pH, suggesting ion-exchange adsorption. The K<SUB>d</SUB> values were in the order of Eu<SUP>3+</SUP>>Cs<SUP>+></SUP>Sr<SUP>2+</SUP>>Co<SUP>2+</SUP>>Na<SUP>+</SUP>. An expansion of interlayer distance of α-ZrP in the presence of Na<SUP>+</SUP> enables the large hydrated Eu<SUP>3+</SUP> ions to be adsorbed on this exchanger, and the adsorption isotherm of Eu<SUP>3+</SUP> ions followed Freundlichs adsorption formula. The granulated α-ZrP has high thermal stability and acid resistance. The breakthrough capacity for Eu<SUP>3+</SUP> linearly increased with pH of the effluent.
- 社団法人 日本原子力学会の論文
- 1996-07-25
著者
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Yamamoto Noriyuki
Nagoya R&d Institute Toagosei Co. Ltd
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Akiba K
Institute Of Multidisciplinary Research For Advanced Materials. Tohoku University
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Akiba Kenichi
Institute For Advanced Materials Processing Tohoku University
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MIMURA Hitoshi
Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
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Mimura H
Tohoku Univ. Sendai
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Mimura Hitoshi
Institilte Of Multidisciplinary Research For Advanced Materials Tohoku University
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