废锆包壳的α去污
Journal of Nuclear and Radiochemistry（2022）
Abstract
开展了利用Ag(Ⅱ)间接氧化溶解废锆包壳的α去污研究.结果表明:非放锆包壳不溶于Ag(Ⅱ)-硝酸溶液中,可能是包壳表面生成氧化锆,抑制了包壳的溶解;建立了废锆包壳电化学溶解工艺,开展了废锆包壳α去污工艺验证,溶解后废锆包壳残留的α比活度为2.0×105 Bq/kg;分析了废锆包壳α污染源项,确定了废锆包壳α比活度的主要贡献是241 Am和238 Pu.
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Key words
waste zircaloy cladding hull,ag（ⅱ）,indirect oxidation dissolution,alpha decontamination
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