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蓖麻油衍生微乳液对菲的增溶和洗脱作用及其对菲污染土壤的修复机理

Keywords: 蓖麻油硫酸盐,表面活性剂,,增溶作用,洗脱作用

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Abstract:

比较研究了蓖麻油硫酸盐(SCOS)与普通表面活性剂TritonX-100(TX100)、Tween80(TW80)、Brij35、十二烷基苯磺酸钠(SDBS)和十二烷基硫酸钠(SDS)等对菲的增溶和洗脱作用。结果表明,菲表观溶解度与SCOS的浓度呈单一线性关系,SCOS微乳液对菲的增溶比SR=0.0314为最大,菲在微乳相和水相之间的分配系数logKem=4.44,大于菲在胶束相和水相之间的分配系数(logKmc)。1∶10土-水体系下,SCOS微乳液对菲污染土壤的清洗速率最快,清洗效率最高。SCOS有望成为土壤有机污染淋洗修复的增效试剂。

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