土壤中苯系物在表面活性剂溶液中的解吸研究  

Desorption of Benzene Compounds from Soil in Surfactant Solution

作　　者：杨建涛 朱琨[1] 马娟[1] 魏翔[1] 王海涛[1] 

机构地区：[1]兰州铁道学院环境科学与工程学院,甘肃兰州730070

出　　处：《农业环境科学学报》2003年第5期620-623,共4页Journal of Agro-Environment Science

基　　金：国家自然科学基金资助项目(29977015);甘肃环保局基金资助项目(GH2002-14)

摘　　要：选用阴离子表面活性剂十二烷基苯磺酸钠和十二烷基硫酸钠(LAS和SDS),阳离子表面活性剂十六烷基三甲基氯化铵(CTAB)和非离子表面活性剂(AEO-9和SA-20)对污染土壤进行解析试验。研究了用表面活性剂解吸土壤中的苯系物,从而为淋滤冲洗被石油污染的农田提供理论依据。试验表明,阴离子表面活性剂对苯系物的去除效率达95%,非离子表面活性剂对苯系物的去除率达85%,而阳离子表面活性剂无明显去除效果。The desorption of benzene compounds from soil in surfactant solutions was investigated in the present study.Anionic surfactants(LAS and SDS),cationic surfactant (CTAB)and nonionic surfactants(AEO -9and SA -20)were utilized to desorb the contaminated soil in the experiment .The results showed that the removal rate of benzene compounds was up to 95%in anionic surfactant solution,and 85%in noni onic surfactant solution,respectively,but the removal rate was not obvious in cationic surfactant solution.

关 键 词：土壤 苯系物 表面活性剂溶液 解吸试验 污染土壤 淋滤冲洗 石油污染 

分 类 号：S153[农业科学—土壤学]