环境工程学报2012，Vol.6Issue(11)：4245-4250,6.
土壤有机质对铊在土壤中吸附-解吸行为的影响
Effects of organic matter on thallium adsorption-desorption in soils
摘要
Abstract
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.关键词
土壤/铊/土壤有机质/吸附/解吸Key words
soil/thallium/soil organic matter/adsorption/desorption分类
资源环境引用本文复制引用
李祥平,张飞,齐剑英,陈永亨..土壤有机质对铊在土壤中吸附-解吸行为的影响[J].环境工程学报,2012,6(11):4245-4250,6.基金项目
国家自然科学青年基金项目 （）
广州大学引进人才科研启动项目 （）
