钍(Ⅳ)离子在泥炭上的吸附研究  

Study on Adsorption of Thorium (Ⅳ) on Peat

作　　者：叶榕[1] 刘峙嵘[1] 文传玺 张思纬[1] 

机构地区：[1]东华理工大学核工程技术学院,江西抚州344000 [2]中核清原环境技术工程有限责任公司,北京100037

出　　处：《湿法冶金》2011年第1期44-47,共4页Hydrometallurgy of China

基　　金：江西省青年科学家(井冈之星)培养对象计划资助(2009DQ01600);江西省教育厅科学技术项目资助(GJJ10496);国防基础科研基金项目资助(A3420060146)

摘　　要：采用静态批次吸附法研究了泥炭对Th4+的吸附行为。探讨了泥炭粒径、固液质量体积比、振荡时间、溶液pH值、离子强度等因素对吸附的影响,并确定了室温下不同离子强度时的吸附等温线。试验结果表明:溶液pH值对泥炭吸附Th4+影响较大,离子强度的影响较小;吸附过程符合Langlmuir方程;泥炭对Th4+的吸附主要通过表面络合进行。Adsorption of Th^4＋ on peat by batch method was studied.Effects of solution pH value,ionic strength and Th^4＋ concentration on adsorption were examined.The results showed that adsorption of Th^4＋ on peat was strongly affected by pH values and weakly depended on ionic strength.The kinetic process of adsorption could be described by the Langmuir equation excellently.Adorption of Th^4＋ was mainly dominated by surface complexation.

关 键 词：泥炭 Th^4+ 吸附 

分 类 号：X591[环境科学与工程—环境工程]