Remediation of PAH-contaminated soil at a gas manufacturing plant by a combined two-phase partition system washing and microbial degradation process

doi:10.1007/s11356-015-4466-y

	Remediation of PAH-contaminated soil at a gas manufacturing plant by a combined two-phase partition system washing and microbial degradation process
	Guo, Meixia 1,3; Li, Haibo 2; Gong, Xuan 2; Xu, Xinyang 2; Gong, Zongqiang 1; Li, Xiaojun 1; Jia, Chunyun 1
刊名	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
	2015-08-01
卷号	22 期号:16 页码:12001-12010
关键词	Polycyclic Aromatic Hydrocarbons (Pahs) Two-phase Partition System (Tpps) Soil Mycobacterium Biodegradation Hydroxypropyl-beta-cyclodextrin (Hpcd) Joint Remediation
ISSN号	0944-1344
DOI	10.1007/s11356-015-4466-y
英文摘要	The aim of this study was to design a remediation technique using both soil washing and microbial degradation to remove polycyclic aromatic hydrocarbons (PAHs) from contaminated soil. PAH biodegradation by inoculation of Mycobacterium sp. was first tested. The effectiveness of washing agents (Tween 80 solution, biodiesel, and a two-phase partition system (TPPS)) was then evaluated with column experiments. Third, the combination of TPPS washing and microbial degradation was studied. PAH bioavailability before and after biodegradation and the joint remediation was also assessed using hydroxypropyl-beta-cyclodextrin (HPCD) extraction. Only phenanthrene and anthracene were noticeably biodegradable when the soil was inoculated with Mycobacterium sp. TPPS containing 2 % (v/v) biodiesel and 2.5 % (w/v) Tween 80 was used as the washing agent for the joint remediation test because it gave higher PAH extractions than Tween 80 solution with lower doses, and there was less residue in the soil. Joint TPPS washing and microbial degradation gave a total PAH removal of 92.6 %, which was much higher than the results from either the biodegradation or washing experiments alone. Removals of all high molecular weight (HMW) PAHs were improved. Bioavailable concentrations of all PAHs decreased significantly after the joint remediation process, indicating that there were reduced risks from all PAHs. The results demonstrate that the combination of TPPS washing and microbial degradation is a useful and innovative process for remediation of PAH-contaminated soils.
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000358579700003
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/122123]
专题	中国科学院沈阳应用生态研究所
通讯作者	Gong, Zongqiang
作者单位	1.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China 2.Northeastern Univ, Coll Resources & Civil Engn, Inst Environm Engn, Shenyang 110819, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Guo, Meixia,Li, Haibo,Gong, Xuan,et al. Remediation of PAH-contaminated soil at a gas manufacturing plant by a combined two-phase partition system washing and microbial degradation process[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2015,22(16):12001-12010.
APA	Guo, Meixia.,Li, Haibo.,Gong, Xuan.,Xu, Xinyang.,Gong, Zongqiang.,...&Jia, Chunyun.(2015).Remediation of PAH-contaminated soil at a gas manufacturing plant by a combined two-phase partition system washing and microbial degradation process.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,22(16),12001-12010.
MLA	Guo, Meixia,et al."Remediation of PAH-contaminated soil at a gas manufacturing plant by a combined two-phase partition system washing and microbial degradation process".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 22.16(2015):12001-12010.