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2015 | 17 | 1 | 97-102

Article title

Studies on the effect of coal particle size on biodepyritization of high sulfur coal in batch bioreactor

Content

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Languages of publication

EN

Abstracts

EN
The moderate thermophilic mix culture bacteria were used to depyritize the Illinois coal of varying particle sizes (-100 μm, 100-200 μm, +200 μm). Mineral libration analysis showed the presence of pyrite along with other minerals in coal. Microbial depyritization of coal was carried out in stirred tank batch reactors in presence of an iron-free 9K medium. The results indicate that microbial depyritization of coal using moderate thermophiles is an efficient process. Moreover, particle size of coal is an important parameter which affects the efficiency of microbial depyritization process. At the end of the experiment, a maximum of 75% pyrite and 66% of pyritic sulphur were removed from the median particle size. The XRD analysis showed the absence of pyrite mineral in the treated coal sample. A good mass balance was also obtained with net loss of mass ranging from 5-9% showing the feasibility of the process for large scale applications.

Publisher

Year

Volume

17

Issue

1

Pages

97-102

Physical description

Dates

published
1 - 3 - 2015
online
25 - 3 - 2015

Contributors

  • Korea Institute of Geoscience and Mineral Resources (KIGAM), Mineral Resource Research Division, Yuseong-gu, Daejeon, 305-350, South Korea
  • Korea Institute of Geoscience and Mineral Resources (KIGAM), Mineral Resource Research Division, Yuseong-gu, Daejeon, 305-350, South Korea
author
  • Korea Institute of Geoscience and Mineral Resources (KIGAM), Mineral Resource Research Division, Yuseong-gu, Daejeon, 305-350, South Korea
  • Central University of Rajasthan, Department of Microbiology, School of Life Sciences, India
author
  • Korea Institute of Geoscience and Mineral Resources (KIGAM), Mineral Resource Research Division, Yuseong-gu, Daejeon, 305-350, South Korea
author
  • Korea Institute of Geoscience and Mineral Resources (KIGAM), Mineral Resource Research Division, Yuseong-gu, Daejeon, 305-350, South Korea
  • Korea Institute of Geoscience and Mineral Resources (KIGAM), Mineral Resource Research Division, Yuseong-gu, Daejeon, 305-350, South Korea

References

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  • 2. Kargi, F. & Robinson, J.M. (1985). Biological removal of pyritic sulfur from coal by the thermophilic organism Sulfolobus acidocaldarius. Biotechnol and Bioengg. 27(1), 41-49. DOI: 10.1002/bit.260270107.[Crossref]
  • 3. Aditiawati, P. Akhmaloka, Astuti, D.I. Sugilubin & Pikoli, M.R. (2013). Biodesulfurization of sub-bituminous coal by mixed culture bacteria isolated from coal mine of south of Sumatera. Biotechnology 12(1), 46-53. DOI: 10.3923/biotech.2013.46.53.[Crossref]
  • 4. Kim, D.J., Gahan, C.S., Akilan, C., Choi, S.Y. &. Kim, B.G. (2013). Microbial desulfurization of three different coals from Indonesia, China and Korea in varying growth medium. Korean J. Chem. Engg. 30(3), 680-687. DOI: 10.1007/s11814-012-0168-z.[Crossref][WoS]
  • 5. Raman, V.K., Pandey, R.A. & Bal, A.S. (1995). Reactor systems for microbial desulfurization of coal. Critical Rev. Environ. Sci. Technol. 25(3), 291-312. DOI: 10.1080/10643389509388481.[Crossref]
  • 6. Acharya, C., Kar, R.N. & Shukla, L.B. (2001). Bacterial removal of sulfur from three different coals. Fuel. 80, 2207-2216. DOI: 10.1016/S0016-2361(01)00100-4.[Crossref]
  • 7. Hu, J., Zheng, B., Finkelman, R.B., Wang, B., Wang, M. Li, S. & Wu, D. (2006). Concentration and distribution of sixty-one elements in coals from DPR Korea. Fuel. 85, 679-688. DOI: 10.1016/j.fuel.2005.08.037.[Crossref]
  • 8. McKay, D.R. (1958). A kinetic study of the oxidation of pyrite in aqueous suspension. Doctoral dissertation, University of British Columbia, Vancouver, Canada.
  • 9. Merrettig, U., Wlotzka, P. & Onken, U. (1989). The removal of pyritic sulfur from coal by Leptospirillum-like bacteria. Appl. Microbiol. Biotechnol. 31(5-6), 626-628. DOI: 10.1007/BF00270807.[Crossref]
  • 10. Deveci, H., Akcil, A. & Apli. I. (2004). Bioleaching of complex zinc sulphides using mesophilic and thermophilic bacteria: comparative importance of pH and iron. Hydrometallurgy 73(3-4), 293-303. DOI: 10.1016/j.hydromet.2003.12.001.[Crossref]
  • 11. Zhou, H.B., Liu, F.F., Zou, Y.Q., Zeng, X.X. & Qiu, G.Z. (2008). Bioleaching of marmatite using moderately thermophilic bacteria. J. Cent South Univ. T 15 (5) 650-655. DOI: 10.1007/s11771-008-0121-9.[Crossref][WoS]
  • 12. Acharya, C., Kar, R.N. & Shukla, L.B. (2004). Microbial desulfurization of different coals. Appl Biochem Biotechnol 118(1-3), 47-63. DOI: 10.1385/ABAB:118:1-3:047.[Crossref]
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  • 15. Gahan, C.S., Sundkvist, J.E. & Sandstrom, A. (2009).A study on the toxic effects of chloride on the biooxidation efficiency of pyrite. J. Hazard. Mate. 172 (2-3), 1273-1281. DOI: 10.1016/j.jhazmat.2009.07.133[Crossref]
  • 16. Gahan, C.S., Sundkvist, J.E., Engström, F. & Sandstrom, A. (2011) Utilisation of steel slags as neutralising agents in biooxidation of a refractory gold concentrate and their influence on the subsequent cyanidation. Res. Cons. Recycl. 55(5), 541-547. DOI: 10.1016/j.resconrec.2011.01.005.[Crossref]
  • 17. Hong, F.F., He, H., Liu, J.Y., Tao, X.X., Zheng, L. & Zhao, Y.D. (2013). Comparison analysis of coal biodesulfurization and coal’s pyrite bioleaching with Acidithiobacillus ferrooxidans. The Sci. World J. 1-9. DOI: 10.1155/2013/184964.[WoS][Crossref]

Document Type

Publication order reference

Identifiers

YADDA identifier

bwmeta1.element.-psjd-doi-10_1515_pjct-2015-0014
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