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Spatial variation of microbial community structure in the Zijinshan commercial copper heap bioleaching plant
Liu Xingyu1; Chen Bowei1; Chen Jinghe2; Zhang Mingjiang1; Wen Jiankang1; Wang Dianzuo1,3; Ruan Renman4
AbstractThe 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.
KeywordHeap Bioleaching Biodiversity 16s Rrna Gene
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
Indexed BySCI
WOS Research AreaEngineering ; Mineralogy ; Mining & Mineral Processing
WOS SubjectEngineering, Chemical ; Mineralogy ; Mining & Mineral Processing
Funding OrganizationNational High Technology Research and Development Program ("863" Program) of China(2012AA061501) ; National Basic Research Program ("973" Program) of China(2010CB630906) ; National Natural Science Foundation of China(50904011 ; Nation high-level youth talents special support plan ; Public Welfare Fund of the Ministry of Environmental Protection of China(201509049) ; Natural Science Foundation of Fujian Province(2010J05158) ; Guangxi Scientific Research and Technology Development Plan(Guikegong14124004-3-1) ; U1402234 ; 41573074)
WOS IDWOS:000379632000009
Citation statistics
Document Type期刊论文
Affiliation1.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
Recommended Citation
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.
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