Formation of fatty acid methyl ester based microemulsion and removal mechanism of PAHs from contaminated soils

doi:10.1016/j.jhazmat.2021.125460

	Formation of fatty acid methyl ester based microemulsion and removal mechanism of PAHs from contaminated soils
	Zhang, Xiaorong 1,2; Liao, Xiaoyong 3; Gong, Zongqiang 1; Li, Xiaojun 1; Jia, Chunyun 1
刊名	JOURNAL OF HAZARDOUS MATERIALS
	2021-07-05
卷号	413 页码:12
关键词	MEs FT-IR Raman PAHs removal Recovery
ISSN号	0304-3894
DOI	10.1016/j.jhazmat.2021.125460
通讯作者	Gong, Zongqiang(zgong@iae.ac.cn)
英文摘要	Microemulsion (ME) is considered as a stable solution for adsorbing organic matters. Aiming to remediate PAH contaminated soils from industrial sites in Shijiazhuang (Soil CPS) and Beijing (Soil CSG) in China, novel MEs were designed with different ratios of mixed surfactants (Surf, TX-100+Tween 80), n-butanol and fatty acid methyl esters (FAMEs). Particle size, transmittance, surface intension, Fourier transform infrared spectroscopy (FT-IR) and Raman spectroscopy of the MEs were analyzed. PAH removals by solubilization experiments were studied and regeneration of waste ME was evaluated. Results showed the novel MEs were obtained with particle sizes in a range of 18.53-122.77 nm. The lowest surface intension of MEs was 26.53 mN/m, which was prone to PAHs transferring to MEs. -OH (3350 cm(-1)), -(CC)-C-= (1740 cm(-1)) and -C-O (1072 cm(-1)) functioned in forming MEs. Additionally, -OH, C-H, -C-C, -C-O were considered as active binding sites when remediating PAH soils. PAH removals in soils CPS and CSG were up to 90.1% and 89.7% with surfactants and co-surfactant (Surf:Co-s), (Surf: Co-s) and FAME, soil and MEs (w:v) at ratios of 1:1, 8:2 and 1:4, respectively. About 85.6% of FAME and 41.9% of TX-100 in waste ME were recovered for recycle purpose.
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23010401] ; National Key Research and Development Project of China[2018YFC1801902]
WOS关键词	POLYCYCLIC AROMATIC-HYDROCARBONS ; SURFACTANT-ENHANCED REMEDIATION ; PHASE-BEHAVIOR ; OIL ; RAMAN ; BIOREMEDIATION ; BIODEGRADATION ; SOLUBILIZATION ; DISPLACEMENT ; EXTRACTION
WOS研究方向	Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000647588700001
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key Research and Development Project of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/162587]
专题	中国科学院地理科学与资源研究所
通讯作者	Gong, Zongqiang
作者单位	1.Chinese Acad Sci, Inst Appl Ecol, Key Lab Pollut Ecol & Environm Engn, Shenyang 110016, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Land Contaminat Assessment & Remediat Lab, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xiaorong,Liao, Xiaoyong,Gong, Zongqiang,et al. Formation of fatty acid methyl ester based microemulsion and removal mechanism of PAHs from contaminated soils[J]. JOURNAL OF HAZARDOUS MATERIALS,2021,413:12.
APA	Zhang, Xiaorong,Liao, Xiaoyong,Gong, Zongqiang,Li, Xiaojun,&Jia, Chunyun.(2021).Formation of fatty acid methyl ester based microemulsion and removal mechanism of PAHs from contaminated soils.JOURNAL OF HAZARDOUS MATERIALS,413,12.
MLA	Zhang, Xiaorong,et al."Formation of fatty acid methyl ester based microemulsion and removal mechanism of PAHs from contaminated soils".JOURNAL OF HAZARDOUS MATERIALS 413(2021):12.