Evaluation of the Biotechnological Potential of Pure and Mixture of Indigenous Iron-Oxidizing Bacteria to Dissolve Trace Metals from Cu Bearing Ore

doi:10.1080/01490451.2019.1611974

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 兰州油气中心

	Evaluation of the Biotechnological Potential of Pure and Mixture of Indigenous Iron-Oxidizing Bacteria to Dissolve Trace Metals from Cu Bearing Ore
	Sajjad, Wasim 1,2; Zheng Guodong 1; Rafiq, Muhammad 3; Ma Xiangxian 1; Khan, Suliman 2,4; Haq, Abdul 5; Ali, Barkat 2,6; Zada, Sahib 7
刊名	GEOMICROBIOLOGY JOURNAL
	2019-09-14
卷号	36 期号:8 页码:715-726
关键词	Acidithiobacillus ferrooxidans bioleaching iron-oxidizing bacteria Mossbauer spectroscopy trace metals
ISSN号	0149-0451
DOI	10.1080/01490451.2019.1611974
英文摘要	This study aimed to investigate the ability of pure and consortia of indigenous iron-oxidizing bacteria to enhance the dissolution of trace metals from Cu and Zn-bearing ore. Three bacterial strains Acidithiobacillus ferrooxidans strain WG101, Leptospirillum ferriphilum strain WG102, Leptospirillum ferrooxidans strain WG103 isolated from Baiyin copper mine, China were used in this study. The biotechnological potential of these indigenous isolates was evaluated both in pure and in consortia to extract cobalt, chromium, and lead from the copper and zinc bearing ore. The sulfur and iron-oxidizing bacterial isolate Acidithiobacillus ferrooxidans strain WG101 exhibited efficient dissolution compared to sole iron-oxidizing Leptospirillum ferriphilum strain WG102, and Leptospirillum ferrooxidans strain WG103. Initial medium pH, pulp density, and temperature were studied as influential parameters in bioleaching carried out by bacterial consortia. The achieved optimum conditions were; initial pH of 1.5, 10% of pulp density, and temperature 30 degrees C with 68.7 +/- 3.9% cobalt, 56.6 +/- 3.9% chromium, and 36 +/- 3.7% lead recovery. Analytical study of oxidation-reduction potential and pH fluctuation were observed during this whole process that shows the metal dissolution efficiency of bacterial consortia. Alterations in spectral bands of processed residues were reported through FTIR analysis compared with control ore sample. Mossbauer spectroscopy analysis showed the influence of bacterial consortia on iron speciation in bioleached samples. The findings confirm that the indigenous acidophilic iron-oxidizing bacterial strains are highly effective in the dissolution of trace elements present in ore samples. This study not only supports the notion that indigenous bacterial strains are highly effectual in metal dissolution but provides the basic vital conditions to upscale the bioleaching technique for metals dissolution.
资助项目	CAS-TWAS ; Natural Science Foundation of China[41572352]
WOS关键词	BALL MILL SPILLAGE ; PULP DENSITY ; ACIDITHIOBACILLUS-FERROOXIDANS ; MIXED CULTURES ; COPPER MINE ; CHALCOPYRITE CONCENTRATE ; BIOLEACHING PROCESS ; SULFIDE MINERALS ; PARTICLE-SIZE ; HEAVY-METALS
WOS研究方向	Environmental Sciences & Ecology ; Geology
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000475949700005
资助机构	CAS-TWAS ; Natural Science Foundation of China ; CAS-TWAS ; Natural Science Foundation of China ; CAS-TWAS ; Natural Science Foundation of China ; CAS-TWAS ; Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/92949]
专题	地质与地球物理研究所_兰州油气中心
通讯作者	Zheng Guodong
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Gansu Prov Key Lab Petr Resources Res, Key Lab Petr Resources, Lanzhou, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Univ Bristol, Fac Sci, Sch Geog Sci, Bristol Glaciol Ctr, Bristol, Avon, England 4.Chinese Acad Sci Wuhan, Inst Hydrol, Key Lab Aquat Biodivers & Conservat, Sci, Wuhan, Hubei, Peoples R China 5.Quaid I Azam Univ, Dept Microbiol, Islamabad, Pakistan 6.Univ Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryosphere Sci, Lanzhou, Gansu, Peoples R China 7.Shantou Univ, Coll Sci, Dept Biol, Shantou, Peoples R China
推荐引用方式 GB/T 7714	Sajjad, Wasim,Zheng Guodong,Rafiq, Muhammad,et al. Evaluation of the Biotechnological Potential of Pure and Mixture of Indigenous Iron-Oxidizing Bacteria to Dissolve Trace Metals from Cu Bearing Ore[J]. GEOMICROBIOLOGY JOURNAL,2019,36(8):715-726.
APA	Sajjad, Wasim.,Zheng Guodong.,Rafiq, Muhammad.,Ma Xiangxian.,Khan, Suliman.,...&Zada, Sahib.(2019).Evaluation of the Biotechnological Potential of Pure and Mixture of Indigenous Iron-Oxidizing Bacteria to Dissolve Trace Metals from Cu Bearing Ore.GEOMICROBIOLOGY JOURNAL,36(8),715-726.
MLA	Sajjad, Wasim,et al."Evaluation of the Biotechnological Potential of Pure and Mixture of Indigenous Iron-Oxidizing Bacteria to Dissolve Trace Metals from Cu Bearing Ore".GEOMICROBIOLOGY JOURNAL 36.8(2019):715-726.