%0 Journal Article
%T Effects of organic matter on thallium adsorption-desorption in soils<br>土壤有机质对铊在土壤中吸附-解吸行为的影响
%A Li Xiangping
%A Zhang Fei
%A Qi Jianying
%A Chen Yongheng
%A <br>李祥平
%A 张飞
%A 齐剑英
%A 陈永亨
%J 环境工程学报
%D 2012
%I 
%X The effects of present organic matter in red soil and loess on the Tl+ adsorption-desorption behaviors were investigated. The results showed that the adsorption of Tl+ by both red soil and loess was remarkabley decreased after the removal of soil organic matter (SOM). The reduce in Tl+ adsorption capacity varied with different initial Tl+ concentrations, and the greatest degree was 24.7% and 28.2% for red soil and loess, respectively. The greatest decrease degree in Tl+ adsorption rate by loess was about 20%, which was higher than that by red soil. The contribution of SOM to the Tl+ adsorption by loess and red soil was 39.2% and 32.8%, respectively. In addition, the desorption of Tl+ from both loess and red soil was enhanced after the removal of SOM, particularly for high initial Tl+ concentration. When the initial Tl+ concentration was 20 mg/L, the desorption rate increased to 60.8% and 65.5% for red soil and loess, respectively.
%K soil
%K thallium
%K soil organic matter
%K adsorption
%K desorption<br>土壤
%K 铊
%K 土壤有机质
%K 吸附
%K 解吸
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=37D4B66310E46B83BD300F4B61C62C51&yid=99E9153A83D4CB11&vid=B31275AF3241DB2D&iid=708DD6B15D2464E8&sid=E1ED97EF190E9424&eid=08F2FA09DA98F9D5&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=16