Enhanced sulfate reduction by Citrobacter sp coated with Fe3O4/SiO2 magnetic nanoparticles

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	Enhanced sulfate reduction by Citrobacter sp coated with Fe3O4/SiO2 magnetic nanoparticles
	Zhou, Wei 1; Yang, Maohua 1; Song, Ziyu 1; Xing, Jianmin 1,2
刊名	BIOTECHNOLOGY AND BIOPROCESS ENGINEERING
	2015-02-01
卷号	20 期号:1 页码:117-123
关键词	anaerobic processes biodesulfurization cell immobilization Citrobacter sp HCSR magnetic particles (MNPs) waste-water treatment
ISSN号	1226-8372
通讯作者	Zhou, W (reprint author), Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China.
英文摘要	A sulfate-reducing Citrobacter strain was isolated and coated with Fe3O4/SiO2 magnetic nanoparticles (MNPs) to enhance sulfate reduction. Biolog analysis showed that it utilizes a broad range of electron donors. The findings also showed that this bacteria strain is a facultative anaerobe and can completely reduce 12 mM of sulfate to sulfide in 7 days under anaerobic conditions. Moreover, sulfate reduction was enhanced by 79% under optimized conditions. Different SiO2 wrap-ratios of the MNPs attached to the cell surface were studied to optimize the sulfate reduction: the surface of cells coated with 300% silica wrap-ratio MNPs showed the highest stability and increased desulfurization batch time, with a 450% increase in sulfate reduction in comparison with uncoated cells cultivated in anaerobic conditions.
学科主题	Biotechnology & Applied Microbiology
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Biotechnology & Applied Microbiology
研究领域[WOS]	Biotechnology & Applied Microbiology
关键词[WOS]	REDUCING BACTERIA ; WASTE-WATER ; OIL-FIELD ; SP NOV. ; MORPHOLOGY ; NITRATE
收录类别	SCI
语种	英语
WOS记录号	WOS:000351466100015
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/13829]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China 2.Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Wei,Yang, Maohua,Song, Ziyu,et al. Enhanced sulfate reduction by Citrobacter sp coated with Fe3O4/SiO2 magnetic nanoparticles[J]. BIOTECHNOLOGY AND BIOPROCESS ENGINEERING,2015,20(1):117-123.
APA	Zhou, Wei,Yang, Maohua,Song, Ziyu,&Xing, Jianmin.(2015).Enhanced sulfate reduction by Citrobacter sp coated with Fe3O4/SiO2 magnetic nanoparticles.BIOTECHNOLOGY AND BIOPROCESS ENGINEERING,20(1),117-123.
MLA	Zhou, Wei,et al."Enhanced sulfate reduction by Citrobacter sp coated with Fe3O4/SiO2 magnetic nanoparticles".BIOTECHNOLOGY AND BIOPROCESS ENGINEERING 20.1(2015):117-123.