%0 Journal Article
%T Retardation characters of 3H and Br- migration in saturated loess<br>饱和黄土中3H和Br-迁移的延迟特征
%A GUO Minli
%A WANG Jinsheng
%A LI Shushen
%A <br>郭敏丽
%A 王金生
%A 李书绅
%J 环境科学学报
%D 2004
%I 
%X Tests of radionuclide migration in saturated loess soil showed that Br~- migrated faster than ()~3H, this phenomenon has significant implications in the study of radionuclide migration, but has not been determined by numerical models. In this paper we proposed a new method to determine the breakthrough curves of ()~3H and Br~- by obtaining the flow velocity from the tests. The results showed that the migration of both ()~3H and Br~- are retarded in saturated loess, and retardation factors of ()~3H range from 1.95 to 2.05, and Br~- from 1.60 to 1.90, respectively. Comparison of the common method and the proposed method showed that the former gives a larger error for the identification of groundwater velocity. In addition, sensitivity analysis of retardation factor indicated that retardation factor has important influence on ()~3H and Br~- migration in saturated loess soil.
%K Saturated loess soil
%K ()~3H
%K Br~-
%K migration
%K retardation
%K simulation<br>饱和黄土
%K 3H
%K Br-
%K 迁移
%K 延迟
%K 模拟
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=03A55E61A8750ACAC6AF81EF9E2AC838&aid=608C9CE9C2BCE222&yid=D0E58B75BFD8E51C&vid=B91E8C6D6FE990DB&iid=94C357A881DFC066&sid=2D207DE75533FA7E&eid=8047434EAE0B2346&journal_id=0253-2468&journal_name=环境科学学报&referenced_num=2&reference_num=11