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.
出处
《铀矿冶》
CAS
北大核心
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)
关键词
矿物材料
Cs+
吸附性能
mineral materials
Cs^＋
adsorption capacity
