核化学与放射化学2017，Vol.39Issue(3)：213-217,5.DOI:10.7538/hhx.2017.39.03.0213
pH值对U、Pu的吸附影响
Effect of pH on Adsorption Characteristics of Uranium and Plutonium
摘要
Abstract
The pre-selected site,a repository of very low-level radioactive waste in Southwest China is taken as the study subject.With the static simulation test,effect of pH in aqueous phase on absorption of U and Pu in the soil is studied.With the software PHREEQC,different form and principal components of groundwater solutions are simulated under different pH.The study shows that,in the aqueous environment,the absorption of the soil for nuclides U and Pu reaches absorption equilibrium in 13 days.The pH value has great influence on the absorption of the soil.The acidic solution has a weak effect,while the alkaline solution has a large effect.U and Pu have certain effect of the chemical form and principal components in aqueous solutions on the absorption of the soil.Compounds of U and Pu with charge are easy to combine with the functional groups of the soil surface,which can strengthen the absorption of the soil and heighten the charge density,beneficial to the absorption.关键词
U/Pu/土壤/吸附分配系数/PHREEQCKey words
U/Pu/soil/Kd/PHREEQC分类
能源科技引用本文复制引用
成建峰,冷阳春,庹先国,赖捷,阳刚,邓超..pH值对U、Pu的吸附影响[J].核化学与放射化学,2017,39(3):213-217,5.基金项目
国家自然科学基金资助项目(41630646) （41630646）
四川省科技计划项目(2014JY0206) （2014JY0206）
