3种矿物材料对Cs^+的吸附性能研究  

Adsorption performance of Cs^+ in three mineral materials

作　　者：王金明[1] 易发成[2] 

机构地区：[1]安徽理工大学,安徽淮南232001 [2]西南科技大学,四川绵阳621010

出　　处：《铀矿冶》2008年第4期197-201,共5页Uranium Mining and Metallurgy

基　　金：国家自然科学基金资助项目(10376028)

摘　　要：采用动态试验测定3种矿物材料对Cs+的吸附性能,为评价中低放核废物处置效果提供一些参考依据。结果表明:4A沸石对Cs+的平衡吸附量最大,沸石次之,凹凸棒石最小;4A沸石对Cs+的阻滞效果最好,沸石略次之,凹凸棒石最差;在消除进液流速的影响下,比较吸附材料的Cs+迁移速率,4A沸石的最小,沸石次之,凹凸棒石的最大。从而表明,4A沸石对Cs+吸附性能最好,沸石次之,凹凸棒石最差。Adsorption capacity of Cs^＋ by three mineral materials is studied using dynamic adsorptive experimental method so that some references are provided for evaluating disposition effect of midower radwaste. Experiment results show that equilibrium adsorption amount of Cs^＋ by the 4A zeolite was the most in the three mineral materials, the next was the zeolite, the palygorskite was the least; and retardarce effect of Cs^＋ was the best in 4A zeolite, the next was zeolite, palygorskite was the weakest. Transference velocity of Cs^＋ in three mineral materials was compared under the condition of eliminating the influence of feed flowrate. Consequently, transference velocity of Cs^＋ was the least in 4A zeolite eolumn, the second was in zeolite column, and the last was in palygorskite column.

关 键 词：矿物材料 Cs+ 吸附性能 

分 类 号：TL941.19[核科学技术—辐射防护及环境保护] O647.32[理学—物理化学]