Comparison Analysis of Coal Biodesulfurization and Coal’s Pyrite Bioleaching with Acidithiobacillus ferrooxidans
Joint Authors
Hong, Fen-Fen
He, Huan
Liu, Jin-Yan
Tao, Xiu-Xiang
Zheng, Lei
Zhao, Yi-Dong
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-10-27
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
Acidithiobacillus ferrooxidans (A.
ferrooxidans) was applied in coal biodesulfurization and coal’s pyrite bioleaching.
The result showed that A.
ferrooxidans had significantly promoted the biodesulfurization of coal and bioleaching of coal’s pyrite.
After 16 days of processing, the total sulfur removal rate of coal was 50.6%, and among them the removal of pyritic sulfur was up to 69.9%.
On the contrary, after 12 days of processing, the coal’s pyrite bioleaching rate was 72.0%.
SEM micrographs showed that the major pyrite forms in coal were massive and veinlets.
It seems that the bacteria took priority to remove the massive pyrite.
The sulfur relative contents analysis from XANES showed that the elemental sulfur (28.32%) and jarosite (18.99%) were accumulated in the biotreated residual coal.
However, XRD and XANES spectra of residual pyrite indicated that the sulfur components were mainly composed of pyrite (49.34%) and elemental sulfur (50.72%) but no other sulfur contents were detected.
Based on the present results, we speculated that the pyrite forms in coal might affect sulfur biooxidation process.
American Psychological Association (APA)
Hong, Fen-Fen& He, Huan& Liu, Jin-Yan& Tao, Xiu-Xiang& Zheng, Lei& Zhao, Yi-Dong. 2013. Comparison Analysis of Coal Biodesulfurization and Coal’s Pyrite Bioleaching with Acidithiobacillus ferrooxidans. The Scientific World Journal،Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-1011629
Modern Language Association (MLA)
Hong, Fen-Fen…[et al.]. Comparison Analysis of Coal Biodesulfurization and Coal’s Pyrite Bioleaching with Acidithiobacillus ferrooxidans. The Scientific World Journal No. 2013 (2013), pp.1-9.
https://search.emarefa.net/detail/BIM-1011629
American Medical Association (AMA)
Hong, Fen-Fen& He, Huan& Liu, Jin-Yan& Tao, Xiu-Xiang& Zheng, Lei& Zhao, Yi-Dong. Comparison Analysis of Coal Biodesulfurization and Coal’s Pyrite Bioleaching with Acidithiobacillus ferrooxidans. The Scientific World Journal. 2013. Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-1011629
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1011629