非-阴离子表面活性剂对PAHs的增溶作用及无机盐的强化效果研究  

Solubilization of PAHs by Nonionic-anionic Surfactants and Influence of Inorganic Salts

作　　者：王欢[1] 王瑶[1] 肖鹏飞[1] 

机构地区：[1]东北林业大学林学院,黑龙江哈尔滨150040

出　　处：《环境科学与管理》2014年第10期96-100,共5页Environmental Science and Management

基　　金：国家自然科学基金项目(41201307);东北林业大学大学生科研训练项目(KY2013026)

摘　　要：文章研究了几种非离子和阴离子表面活性剂在单一或混合条件下对多环芳烃(PAHs)萘和菲的增溶作用,并分析了无机盐对表面活性剂増溶PAHs的强化效果。结果表明,在相同浓度条件下,非离子表面活性剂对菲和萘的增溶效果均高于阴离子表面活性剂,其增溶能力大小顺序为:Tween 80>TX-100>Tween 20>SDS>SDBS。将非离子与阴离子表面活性剂混合后,对萘和菲的增溶作用大于单一阴离子表面活性剂而小于单一非离子表面活性剂,且增溶效果随着非离子表面活性剂比例的增加而增大。低浓度(0.03 mol/L)的NaCl和Na2SO4可大幅度促进表面活性剂对萘和菲的增溶效果,但随着无机盐浓度的提高,对增溶效果的促进作用不明显。The solubilization of PAHs phenanthrene and naphthalene was investigated using single nonionic surfactants, single anionic surfactants, and nonionic - anionic mixed surfactants. The result shows that the solubilization extent of PAHs by nonionic surfactants is much larger than that by anionic surfactants and the sequence of solubilization extent of PAHs is Tween 80 〉 TX - 100 〉 Tween 20 〉 SDS 〉 SDBS. The solubilization extent of PAHs by Tween 80 - SDS and TX - 100 - SDBS is larger than that by single anionic surfactants, but is lower than that by single nonionic surfactants. The solubilization extent of phenanthrene and naphthalene by single and mixed sufraetants could be enhanced by addition of inorganic salts NaC1 and Na2SO4.

关 键 词：表面活性剂 菲 萘 无机盐 增溶作用 

分 类 号：X53[环境科学与工程—环境工程]