节点文献

不同离子浓度对²³⁹Pu在高庙子膨润土上的吸附影响

Effect of Different Ions on Adsorption of ²³⁹Pu Onto Gaomiaozi Bentonites

推荐 CAJ下载
PDF下载
不支持迅雷等下载工具，请取消加速工具后下载。

【Author】 DENG Xiao-ying;TUO Xian-guo;LENG Yang-chun;Tibet Geological Survey Institute of Nuclear Geology;Southwest University of Science and Technology;Chengdu University of Technology;

【机构】核工业西藏地质调查院；西南科技大学；成都理工大学；

【摘要】采用静态吸附法研究了239 Pu在CO2-3、HCO-3、SO2-4、Mg2+、Ca2+、Fe3+等不同离子浓度下在膨润土上的吸附。实验结果表明:随着CO2-3、HCO-3、Mg2+、Ca2+、Fe3+浓度的增大,239Pu在膨润土上的吸附分配系数Kd值逐渐减小,而随着SO2-4浓度的增加,Kd值先增加后减小,其中CO2-3、Fe3+浓度对Kd值影响较大。更多还原

【Abstract】 The adsorption behavior of 239 Pu in different ionic environment onto Gaomiaozi bentonites was studied by the static adsorption method.The results show that the sorption distribution coefficient Kdvalues of 239 Pu onto bentonites decrease with the concentrations of CO2-3,HCO-3,Mg2+,Ca2+and Fe3+increasing,and the Kdvalues increase first and then decrease with the concentration of SO2-4increasing.The concentrations of CO2-3and Fe3+have great effect on the adsorption of 239 Pu onto bentonites.更多还原