稳定元素Sr在土柱中的迁移  

Migration of Stable Element Sr in Soil Columns

作　　者：杨月娥[1] 李洋[1] 潘伟[1] 王志明[1] 倪世伟[1] 

机构地区：[1]中国辐射防护研究院,山西太原030006

出　　处：《原子能科学技术》2006年第3期292-296,共5页Atomic Energy Science and Technology

摘　　要：文章涉及稳定元素Sr在现场进行的水平土柱示踪实验和在实验室进行的垂直土柱模拟实验的实验方法和实验结果。实验结果表明:黄土对Sr有较强的吸附能力;实验室垂直土柱模拟实验的轴心纵向延迟系数略小于外侧纵向的数值;含水层水平土柱中Sr的延迟系数略小于实验室垂直土柱模拟实验的结果,这可能是由于土柱中的水流速度和土壤的密度不同而造成的。The methods and results of field tracer experiment in horizontal soil columns and laboratory-simulation experiment in vertical soil columns were presented. The results show that loess has stronger sorption ability for Sr, and longitudinal retardation coefficient at central axis is less than that at outer wall at laboratory simulation experiment in vertical columns. Retardation coefficient of Sr in horizontal columns in aquifer is slightly less than that .of laboratory simulation experiment in vertical columns, which is possibly caused by the different densities of soil and flow velocity in columns.

关 键 词：土柱 SR 实验场示踪实验 实验室模拟实验 延迟系数 

分 类 号：TL942.1[核科学技术—辐射防护及环境保护]