干旱区生态环境知识资源中心(Arid): Bioremediation of soils saturated with spilled crude oil

Arid

DOI	10.1038/s41598-019-57224-x
	Bioremediation of soils saturated with spilled crude oil
	Ali, Nedaa; Dashti, Narjes; Khanafer, Majida; Al-Awadhi, Husain; Radwan, Samir
通讯作者	Al-Awadhi, H ; Radwan, S
来源期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
出版年	2020
卷号	10 期号:1
英文摘要	A desert soil sample was saturated with crude oil (17.3%, w/w) and aliquots were diluted to different extents with either pristine desert or garden soils. Heaps of all samples were exposed to outdoor conditions through six months, and were repeatedly irrigated with water and mixed thoroughly. Quantitative determination of the residual oil in the samples revealed that oil-bioremediation in the undiluted heaps was nearly as equally effective as in the diluted ones. One month after starting the experiment. 53 to 63% of oil was removed. During the subsequent five months, 14 to 24% of the oil continued to be consumed. The dynamics of the hydrocarbonoclastic bacterial communities in the heaps was monitored. The highest numbers of those organisms coordinated chronologically with the maximum oil-removal. Out of the identified bacterial species, those affiliated with the genera Nocardioides (especially N. deserti), Dietzia (especially D. papillomatosis), Microbacterium, Micrococcus, Arthrobacter, Pseudomonas, Cellulomonas, Gordonia and others were main contributors to the oil-consumption. Some species, e.g. D. papillomatosis were minor community constituents at time zero but they prevailed at later phases. Most isolates tolerated up to 20% oil, and D. papillomatosis showed the maximum tolerance compared with all the other studied isolates. It was concluded that even in oil-saturated soil, self-cleaning proceeds at a normal rate. When pristine soil receives spilled oil, indigenous microorganisms suitable for dealing with the prevailing oil-concentrations become enriched and involved in oil-biodegradation.
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000562847000002
WOS关键词	CONTAMINATED SOIL ; BIOAUGMENTATION ; MICROORGANISMS ; HYDROCARBONS ; TOXICITY
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325830
作者单位	[Ali, Nedaa; Dashti, Narjes; Khanafer, Majida; Al-Awadhi, Husain; Radwan, Samir] Kuwait Univ, Fac Sci, Dept Biol Sci, Microbiol Program, POB 5969, Safat 13060, Kuwait; [Radwan, Samir] Von Einem Str 25, D-48159 Munster, Germany
推荐引用方式 GB/T 7714	Ali, Nedaa,Dashti, Narjes,Khanafer, Majida,et al. Bioremediation of soils saturated with spilled crude oil[J],2020,10(1).
APA	Ali, Nedaa,Dashti, Narjes,Khanafer, Majida,Al-Awadhi, Husain,&Radwan, Samir.(2020).Bioremediation of soils saturated with spilled crude oil.SCIENTIFIC REPORTS,10(1).
MLA	Ali, Nedaa,et al."Bioremediation of soils saturated with spilled crude oil".SCIENTIFIC REPORTS 10.1(2020).