原子能科学技术2018，Vol.52Issue(3)：390-396,7.DOI:10.7538/yzk.2018.52.03.0390
地质水泥对U(Ⅵ)的吸附行为及其机理研究
Study on Adsorption Behavior and Mechanism of U(Ⅵ) by Geological Cement
摘要
Abstract
For the radioactive uranium-containing waste liquid,the static adsorption behavior of U(Ⅵ) by geological cement was studied by changing cement dosage,contact time,pH,U(Ⅵ) concentration,and solution temperature using the batch adsorption method in the experiment.The experimental results show that the adsorption rate of U(Ⅵ) is over 99.9％ under the condition of low solid-liquid ratio (0.5 g/L) and a short period of time (1.5 d),and the U(Ⅵ) concentration and environmental factors such as pH and temperature have little effect on the adsorption capacity,so the adsorption conditions are very mild.The thermodynamic behavior is more consistent with the Langmuir model,meaning that the U(Ⅵ) adsorption by geological cement is a monolayer adsorption-based process.The analysis results of material characteristics show that there are physical and chemical coexistence adsorption mechanisms for the U(Ⅵ) adsorption by geological cement.关键词
地质水泥/铀/吸附行为/吸附机理Key words
geological cement/uranium/adsorption behavior/adsorption mechanism分类
能源科技引用本文复制引用
谢华,苏伟,王烈林,王文文,桑培伦,卢嘉炜,冯志强..地质水泥对U(Ⅵ)的吸附行为及其机理研究[J].原子能科学技术,2018,52(3):390-396,7.基金项目
国防科技工业局科研项目资助(FKY201402) （FKY201402）
中国工程物理研究院横向项目资助(16zx7127) （16zx7127）
