摘要
为了获取钚在干旱地区某处置场场址包气带砂土中的迁移规律,使用^(238)Pu作为示踪源,采用静态实验和动态实验方法对其在砂土的迁移进行了研究。结果表明,对于该场址,砂土对^(238)Pu的吸附能力很强;静态实验测量得到的分配系数与动态实验拟合计算得到的相差不大;采用非平衡模式模拟该场址包气带砂土中^(238)Pu的迁移是恰当的。
Batch and column experiments are conducted and ^(238) Pu is used as tracer source to obtain the migration rules of Pu in sandy soil in vadose zone of the site of a disposal facility in Chinese arid area.The results show that ^(238) Pu is strong adsorbed on the sandy soil.Comparison with the dynamic column experiment,Distribution coefficient obtained by the batch experiment is no significant difference.It is suitable for nonequilibrium sorption model to simulate ^(238) Pu migration in sandy soil in vadose zone of the site.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2017年第S1期97-99,共3页
Environmental Science & Technology
基金
基金项目:国防科工局"十二五"地质处置安全评价技术研究
关键词
钚
砂土
分配系数
plutonium
sandy soil
distribution coefficient
