表面活性剂增效电动作用下土壤中菲的迁移  

Migration of Phenanthrene Under Surfactants-enhanced Non-uniform Electrokinetics

作　　者：冯沛[1] 王慧[1] 

机构地区：[1]清华大学环境科学与工程系,环境生物学研究所,北京100084

出　　处：《环境科学与技术》2009年第B12期8-12,共5页Environmental Science & Technology

基　　金：国家“973”计划项目（Z004CB418506）

摘　　要：研究了表面活性剂增效非均匀电场作用下土壤中菲的迁移特征。结果表明，Triton X-100能够促进土壤中菲向阴极迁移，迁移速率较不添加表面活性剂有明显提高；鼠李糖脂发酵液对土壤中菲的迁移作用较小。添加表面活性剂后，土壤中菲的迁移机理与表面活性剂的离子类型密切相关。在切换电极极性的条件下，菲能够在土壤中均匀分布。The migration characteristic of phenanthrene under non-uniform electrokineties enhanced by surfactants in soil is studied. The results showed that Triton X-100 can promote the phenanthrene＇s migration to the cathode and the migration rate is significantly improved compared with no surfactant. Rhamnolipid broth has little influence on promoting the phenanthrene＇s migration. After adding surfaetants to the soil, the migration mechanism of the phenanthrene in the soil is closely related to the ion type of the surfactants. The phenanthrene can be uniformly distributed in the soil under the condition of electric field polarity reversing.

关 键 词：非均匀电动力学 菲 表面活性剂 电动力学修复 

分 类 号：X131.3[环境科学与工程—环境科学]