西南某地粘土对U吸附的动态模拟实验研究  

Dynamic Simulation Experimental Research on Adsorption of Uranium on Clay Somewhere in Southwest China

作　　者：李杰[1,2] 施泽明[1] 倪师军[1] 张成江[3] 张佩聪[4] 

机构地区：[1]成都理工大学核技术与自动化工程学院,成都610059 [2]山东省第六地质矿产勘查院,山东威海264209 [3]成都理工大学地球科学学院,成都610059 [4]成都理工大学材料与化学化工学院,成都610059

出　　处：《地球与环境》2012年第4期618-622,共5页Earth and Environment

基　　金：国防科工委核设施退役专项"非均匀介质中核素迁移与屏障研究"资助项目(GC2004012)

摘　　要：选择西南某地正电荷发育的弱酸性粘土TY4作为吸附介质,加5%Ca(OH)2作为添加剂制作模拟屏障,用模拟核废液对介质做动态淋滤实验,得出了铀浓度随流量、pH值的变化曲线。实验结果表明,随高度增加屏障的吸附性能增大,渗透系数减小。屏障在pH为11和9附近时吸附效果较强。The TY4 clay which has a lot of positive charge with weak acidity somewhere in Southwest China was chosen. A dynamic experiment was deliberately designed to establish the curve of uranium＇s density related to flux and pH after appending 5 % Ca（OH）2 as adsorption material to make simulating poles. The experimental results showed that the capability of adsorp- tion was reinforced with increasing height and the average penetration coefficient was reduced. The pole＇s adsorption capability was reinforced when the pH was near 11 and 9.

关 键 词：粘土 动态模拟实验 添加剂 U吸附 PH 

分 类 号：P599[天文地球—地球化学]