阴-非离子表面活性剂复配修复石油污染的土壤  

Remediation of crude oil contaminated soil by the synergistic of anionic and nonionic surfactants

作　　者：张伟娜[1] 殷永泉[1] 冉德钦[1] 崔兆杰[1] 

机构地区：[1]山东大学环境科学与工程学院,山东济南250100

出　　处：《河北大学学报（自然科学版）》2014年第3期279-283,共5页Journal of Hebei University(Natural Science Edition)

基　　金：环境保护部环保公益行业科研专项项目(201109022)[0]

摘　　要：采用阴离子表面活性剂SDS与非离子表面活性剂OP-10复配在振荡和超声2种条件下淋洗修复土壤.实验结果表明:超声淋洗比振荡淋洗好,且去除率与溶液浓度、pH、液固比、温度和淋洗时间成正相关,淋洗的最佳条件是:SDS和OP-10复配溶液(复配质量比为50∶1)质量浓度为5g/L,pH为7,液固比为20mL/g,温度为25℃,超声淋洗30min,或者振荡淋洗2h.无机盐离子对去除率也有影响,CaCl2,KCl和NH4Cl对SDS/OP-10溶液的复配淋洗有消极影响,Na2CO3,Na2SiO3对淋洗有积极影响,而NaCl对淋洗影响不大.Oil-contaminated soil was washed with the synergistic of SDS and OP-IO by oscillation and ultrasound. The removal efficiency washed by ultrasound was better than oscillation. The influence factors such as surfactant concentration, pH, the ratio of liquid to solid, washing time, and temperature, had a positive influence on crude oil remove. The optimum condition was obtained： surfactant solution （SDS ： OP-10=50 ： 1 mass） concentration 5 g/L, pH 7, liquid-solid ratio 20 mL/g, temperature 25 ℃, washing time for oscillation 30 rain,or for oscillation 2 h. The addition of CaCI2 ,KC1 and NH4C1 to the solution re- duced the removal rate. Na2CO3 and Na2SiO3 increased the washing rate, and there were little influence when added NaCl to the solution .

关 键 词：表面活性剂 石油污染 土壤修复 淋洗 

分 类 号：X53[环境科学与工程—环境工程]