EFFECT OF NONIONIC SURFACTANTS ON THE REMOVAL OF PAH FROM CONTAMINATED SOIL

被引：1
|
作者：
Khalladi, Razika [1 ]
Moulai-Mostefa, Nadji [1 ]
Bentahar, Fatiha [2 ]
机构：
[1] Univ Medea, Lab Mat & Environm, Ain Dheb 26001, Medea, Algeria
[2] USTHB, Lab Transfer Phenomena, BP 32 El Alia, Algiers 16111, Algeria
来源：
ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL | 2018年 / 17卷 / 02期
关键词：
hydrocarbon; PAH; soil remediation; surfactant; POLYCYCLIC AROMATIC-HYDROCARBONS; ENHANCED REMEDIATION; SOLUBILIZATION; ENVIRONMENT; ADSORPTION; MIXTURES; SORPTION; SYSTEMS; WATER; OIL;
D O I：
10.30638/eemj.2018.034
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
In this study, a soil washing process in the presence of a nonionic surfactant solution of Tween 80 or Triton X-100 was investigated. Sandy soil was contaminated in the laboratory with naphthalene (10 mg/kg and 5000 mg/kg) and anthracene (25 mg/kg and 200 mg/kg), then washed with surfactant solution. A preliminary water washing step showed the performance of water in the removal of the two polycyclic aromatic hydrocarbons (PAH), especially naphthalene. The effect of Tween 80 and Triton X-100 was significant beyond the critical micellar concentration (CMC), where a concentration of 7 or 10CMC showed a great efficiency in removing PAH. Also, the effect of these surfactants was shown remarkably affected by the pH and the ionic strength.
引用
收藏
页码：327 / 333
页数：7
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