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	Remediation of Nitrobenzene Contaminated Soil by Combining Surfactant Enhanced Soil Washing and Effluent Oxidation with Persulfate
	Yan, Jingchun1; Gao, Weiguo1,2; Qian, Linbo1; Han, Lu1,2; Chen, Yun1,2; Chen, Mengfang1
刊名	PLOS ONE
	2015-08-12
卷号	10期号:8页码:14
ISSN号	1932-6203
DOI	10.1371/journal.pone.0132878
通讯作者	Chen, Mengfang(mfchen@issas.ac.cn)
英文摘要	The combination of surfactant enhanced soil washing and degradation of nitrobenzene (NB) in effluent with persulfate was investigated to remediate NB contaminated soil. Aqueous solution of sodium dodecylbenzenesulfonate (SDBS, 24.0 mmol L-1) was used at a given mass ratio of solution to soil (20: 1) to extract NB contaminated soil (47.3 mg kg(-1)), resulting in NB desorption removal efficient of 76.8%. The washing effluent was treated in Fe2+/persulfate and Fe2+/H2O2 systems successively. The degradation removal of NB was 97.9%, being much higher than that of SDBS (51.6%) with addition of 40.0 mmol L-1 Fe2+ and 40.0 mmol L-1 persulfate after 15 min reaction. The preferential degradation was related to the lone pair electron of generated SO4 center dot(-), which preferably removes electrons from aromatic parts of NB over long alkyl chains of SDBS through hydrogen abstraction reactions. No preferential degradation was observed in center dot OH based oxidation because of its hydrogen abstraction or addition mechanism. The sustained SDBS could be reused for washing the contaminated soil. The combination of the effective surfactant-enhanced washing and the preferential degradation of NB with Fe2+/persulfate provide a useful option to remediate NB contaminated soil.
收录类别	SCI
WOS关键词	PHOTOCATALYTIC DEGRADATION ; POROUS-MEDIA ; ADSORPTION ; SOLUBILIZATION ; DESORPTION ; EFFICIENT ; SYSTEMS ; DODECYLBENZENESULFONATE ; DECOMPOSITION ; KAOLINITE
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
语种	英语
出版者	PUBLIC LIBRARY SCIENCE
WOS记录号	WOS:000359492300011
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2558338
专题	南京土壤研究所
通讯作者	Chen, Mengfang
作者单位	1.Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Yan, Jingchun,Gao, Weiguo,Qian, Linbo,et al. Remediation of Nitrobenzene Contaminated Soil by Combining Surfactant Enhanced Soil Washing and Effluent Oxidation with Persulfate[J]. PLOS ONE,2015,10(8):14.
APA	Yan, Jingchun,Gao, Weiguo,Qian, Linbo,Han, Lu,Chen, Yun,&Chen, Mengfang.(2015).Remediation of Nitrobenzene Contaminated Soil by Combining Surfactant Enhanced Soil Washing and Effluent Oxidation with Persulfate.PLOS ONE,10(8),14.
MLA	Yan, Jingchun,et al."Remediation of Nitrobenzene Contaminated Soil by Combining Surfactant Enhanced Soil Washing and Effluent Oxidation with Persulfate".PLOS ONE 10.8(2015):14.

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