Spatial variation of microbial community structure in the Zijinshan commercial copper heap bioleaching plant

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	Spatial variation of microbial community structure in the Zijinshan commercial copper heap bioleaching plant
	Liu Xingyu 1; Chen Bowei 1; Chen Jinghe 2; Zhang Mingjiang 1; Wen Jiankang 1; Wang Dianzuo 1,3; Ruan Renman 4
刊名	MINERALS ENGINEERING
	2016-08-01
卷号	94 期号:AUG 页码:76-82
关键词	Heap bioleaching Biodiversity 16S rRNA gene
ISSN号	0892-6875
英文摘要	The distribution and diversity of microbial community in Zijinshan commercial non-aerated copper heap-bioleaching system operated at pH 0.8 for three years were investigated. In this research, 12 ore residue samples and 3 liquid samples were collected, the microbial community structure of heap was investigated by clone libraries, key acidophiles were assayed by real-time PCR, and physicochemical characteristics of the samples were also analyzed. 27 OTUs were obtained from 16S rRNA libraries, among them, bioleaching microorganism accounted for 40.7% of OTUs and 95.6% of clones. The species which had the ability to oxidize reduced inorganic sulfur compound accounted for 52.9% of clones and to oxidize Fe2+ accounted for 42.7% of clones. The other remaining OTUs accounted for 59.3% of OTUs and 4.4% of clones, most of which belong to heterotrophic and facultative bacteria. These bacteria could use organic compounds of the heap system and decrease the inhibition of organic compounds to autotrophic bacteria. In the heap, Acidithiobacillus mainly located in the inner and higher sites of ore heap, Leptospirillum mainly located in the outer and lower sites of ore heap, and heterotrophic and facultative microbes mainly located in the middle of the ore heap. There was higher leaching efficiency in the core of the heap, this might be related with the higher temperature of the heap core and higher diversity of microorganism community. (C) 2016 Published by Elsevier Ltd.
WOS标题词	Science & Technology ; Technology ; Physical Sciences
类目[WOS]	Engineering, Chemical ; Mineralogy ; Mining & Mineral Processing
研究领域[WOS]	Engineering ; Mineralogy ; Mining & Mineral Processing
关键词[WOS]	LEPTOSPIRILLUM-FERROOXIDANS ; POPULATIONS ; MINERALS ; SULFIDES ; SYSTEM ; WATER ; NOV. ; ORE
收录类别	SCI
语种	英语
WOS记录号	WOS:000379632000009
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/21252]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Gen Res Inst Nonferrous Met, Natl Engn Lab Biohydromet, Beijing 100088, Peoples R China 2.Zijin Min Grp Co Ltd, Shanghang 364200, Peoples R China 3.Gen Res Inst Nonferrous Met, Beijing 100088, Peoples R China 4.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Liu Xingyu,Chen Bowei,Chen Jinghe,et al. Spatial variation of microbial community structure in the Zijinshan commercial copper heap bioleaching plant[J]. MINERALS ENGINEERING,2016,94(AUG):76-82.
APA	Liu Xingyu.,Chen Bowei.,Chen Jinghe.,Zhang Mingjiang.,Wen Jiankang.,...&Ruan Renman.(2016).Spatial variation of microbial community structure in the Zijinshan commercial copper heap bioleaching plant.MINERALS ENGINEERING,94(AUG),76-82.
MLA	Liu Xingyu,et al."Spatial variation of microbial community structure in the Zijinshan commercial copper heap bioleaching plant".MINERALS ENGINEERING 94.AUG(2016):76-82.