混凝土、粘土对锆的吸附行为研究
A STUDY ON THE SORPTION BEHAVIOR OF Zr IN CONCRETE AND CLAY
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摘要: <正> 放射性固体废物的处置已成为世界各国密切关心,也是亟待解决的一个问题。1980年美国Erdal等就粘土对裂变产物Ce,Sr,Ba,Eu,U,Am等核素的吸附情况进行了研究。1985年瑞典Torstenfel等对Sr,Tc,I,Ce,Th,U,Np,Pu,Am等核素在粘土中的迁移、扩散情况作了探讨。英国、芬兰、瑞典均对混凝土对多种核素的吸附和扩散作用进行过研究。白庆中等和庄慧娥等对放射性核素Sr,Cs在地质介质中的吸附和迁移规律也进行了研究。Abstract: In this work, the sorption behavior of Zr by concrete and clay in simulated groundwater is studied.The experimental results show that the dominating forms of zirconium are anion complex and colloid in the weak base medium (pH = 7-9) , and both of concrete and clay have good sorption capacity for Zr.
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