聚合铝对铀(Ⅵ)的吸附  

Adsorption of Uranium(Ⅵ) on Polyaluminium

作　　者：杜兴胜 张麟熹 梁波 谢冬香 时燕华 刘念 

机构地区：[1]江西省核工业地质局测试研究中心,江西南昌330002

出　　处：《核化学与放射化学》2012年第6期374-378,共5页Journal of Nuclear and Radiochemistry

基　　金：国防基础科研资助项目(A3420060146)

摘　　要：研究了聚合铝对铀的吸附以及在含铝离子的溶液中用偶氮胂Ⅲ进行铀的测定方法的探索。研究表明:在1∶1(体积比)的盐酸介质中,当c(AlCl3)<0.1mol/L时,用偶氮胂Ⅲ测定铀误差小于10%,摩尔吸光系数仅103 L/(mol.cm)。当聚合铝的羟铝比为2、铝浓度为5.64×10-3 mol/L时,可实现铀的吸附率在90%以上。因此聚合铝是一种很好的吸附铀的材料,并可实现含铀废水的减容,从而降低核废物处理成本。This paper investigates the adsorption of uranium on the polyaluminium and the determination of uranium in the solution containing aluminum ion using Arsenazo Ⅲ. Research shows that： the error of uranium determination using Arsenazo Ⅲ is less than 10% when the concentration of aluminum is less than 0.1 mol/L in the 1 ： 1 hydrochloric acid medium, molar absorption coefficient is 103 L/（mol · cm）. When OH- is two times alumi- num in the polyaluminum and the concentration of aluminum is 5.64 × 10-3 mol/L, the removal rate of uranium can reach 90% or more. Therefore, polyaluminum is a kind of very good uranium adsorption materials, and it can realize the volume reduction of the waste water containing uranium, thus reducing the costs of nuclear waste disposal.

关 键 词：聚合铝 铀 吸附 减容 

分 类 号：TL942.1[核科学技术—辐射防护及环境保护]