Sr在粉质粘土上的吸附比研究  

Study on Adsorption Distribution Coefficient of Sr on Silty Clay

作　　者：周旭[1] 曾可[1] 张瑞荣[1] 王煜[1] 马特奇[1] 

机构地区：[1]西北核技术研究所,西安710024

出　　处：《核电子学与探测技术》2013年第3期301-304,共4页Nuclear Electronics & Detection Technology

摘　　要：采用静态批示法研究了接触时间、固液比、示踪液浓度及PH值对锶在粉质粘土上吸附比的影响。结果表明,Sr在粉质粘土上约7天达到吸附平衡,平均吸附比为20 mL/g;Sr的吸附吸附比随粘土粒度、固液比和初始浓度的增大而减小;随pH增大而增大;粉质粘土对锶的吸附能力很强,粘土是核废物处置的很好的备选回填材料。The adsorption distribution coefficient of Sr on silty clay was studied by batch experiments. The factors that affeeted the adsorption experiment were size of clay, ratio of solid to liquid, concentration and pH. The result showed, the value of distribution in the rocks was increased while size of rock , ratio of solid to liquid and concentration were decreasing, meanwhile, the pH was increased. Silty clay is a very good backfill material for Sr in nuclear waste disposal.

关 键 词：锶 静态批示法 粉质粘土 吸附比 

分 类 号：X591[环境科学与工程—环境工程]