欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
采用静态吸附实验和动态淋滤实验，研究了天然漂白土、钠基膨润土、高庙子膨润土、钙基膨润土四种膨润土对。239Pu的吸附性能和迁移的阻滞性能。实验结果表明：钙基膨润土吸附能力最强，＆高达7．8082×104，高庙子膨润土次之，天然漂白土略低于高庙子土、钠基膨润土最弱，蚝为2．8548×104同时，钙基膨润土的渗水性能最强，渗透出的。239Pu核素总量最多，淋出率为6．166％o。高庙子膨润土的渗水性能明显弱于天然漂白土，渗透出的239Pu核素总量也远远低于天然漂白土。吸附性能最弱的钠基膨润土的渗水性能最弱，核素的淋出率也最低，为0．107‰。综合考虑，高庙子膨润土和钠基膨润土对。239Pu的阻滞性能更加优越，是处置库的回填材料的更好选择。
英文摘要：
Adsorption abilities and retardation capability of natural bleaching earth, Na-bentonite, GMZ-ben- tonite and Ca-bentonite on 239Pu were studied by using static adsorption experiment and dynamic leaching experi- ments. The result shows that ： Ca-bentonite has a strongest adsorption abilitiy, with the value of Kd up to 7. 808 2 × 104, GMZ-bentonite ranks the second, natural bleaching earth ranks the third, Ca-bentonite is the weakest, with the value of Kd low to 2. 854 8 × 104. Meanwhile, Ca-bentonite has the strongest water permeability, and had penetra- ted out the maximum amount of 239pu, its leaching rate of 239pu in leachates is 6. 166 %0. the water permeability of GMZ-bentonite is weaker than the natural bleaching earth, and the total amount of 239pu in leachates are also lower. Na-bentonite shows a weakest water permeability, with the lowest leaching rate of 239pu which is 0. 107 ‰. Taken all these factors into consideration, GMZ-bentonite and Na-bentonite shows better retardation capability, they are the reasonable backfill material.
同期刊论文项目
同项目期刊论文
A statistical approach to fit Gaussian part of full-energy peaks from Si(PIN) and SDD X-ray spectrom
A PLS-Based Weighted Artificial Neural Network Approach for Alpha Radioactivity Prediction inside Co
A Multi-pipe and Multi-address Switching Wireless Network for Distributed Seismic Data Acquisition S
期刊信息
位置：