Uptake behavior of americium on alginic acid and alginate polymer gels |
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| Authors: | H Mimura H Ohta K Akiba Y Onodera |
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| Institution: | (1) Institute for Advanced Materials Processing, Tohoku University, Katahira-2, Aoba-ku, Sendai, 980-8577, Japan;(2) Tohoku National Industrial Research Institute, Nigatake-4, Miyagino-ku, Sendai, 983-0036, Japan |
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| Abstract: | The uptake behavior of Am3+ was investigated by using alginic acid and alginate polymer gels. The affinity of radioactive nuclides for carboxyl groups in gel matrices increased in the order of Na+ < Cs+ < Co2+ < Pd2+, Sr2+, Fe3+ < Eu3+, Am3+. Among alginate gels, calcium alginate exhibited relatively higher uptake rate and distribution coefficient of Am3+. The column packed with calcium alginate beads was effective for the removal of trace amounts of Am3+ from acidic nitrate solutions. |
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