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The Studing of Silver Nanoparticle Effect on the Copper Bioleaching Output from Low Grade Sulfidic Ores

Received: 26 January 2015     Accepted: 8 February 2015     Published: 28 February 2015
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Abstract

The extraction of metals from ores causes various environmental pollutions. Since Iran is located on the so-called ‘copper belt’ and holds a significant share of the world’s copper mines and resources, reduction of pollution from these mines can have an important effect on the overall reduction of pollution. Copper processing methods include pyrometallurgy and hydrometallurgy. Pyrometallurgy is mainly used in high grade mines whereas hydrometallurgy process is used in lower grade mines. In low grade copper sulfide mines, hydrometallurgy processes are used which use a lot of energy to covert mineral deposits into oxide forms which are then leached using sulfuric acid, or are extracted using bioleaching process. In acidic leaching, a lot of environmental pollution is created. Bioleaching process is an environmentally-friendly method which is mainly used in mines where the common physicochemical methods are not profitable. In this study, we have tried to increase the efficiency of bioleaching process by adding silver nanoparticle in order to increase the popularity of this method. For this purpose, initially the indigenous bacteria were separated from the ores and after adoption to silver, the bacteria were used in bioleaching tests. Three concentrations of silver component were used for the bioleaching tests. The results were compared to cases where no bacteria and no silver compounds were used, which showed significant increase in copper extraction efficiency. In the next step, the optimum concentration of silver was used in the percolation column. In this stage, four columns were set up for ‘with bacteria and silver’, ‘with silver’, ‘with bacteria’ and ‘without bacteria and silver’. Results show that the column with bacteria and silver produced the highest efficiency of copper extraction.

Published in American Journal of Nano Research and Applications (Volume 3, Issue 1)
DOI 10.11648/j.nano.20150301.12
Page(s) 6-11
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2015. Published by Science Publishing Group

Keywords

Silver Nanoparticle, Bioleaching, Copper, Ores

References
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[5] Neale J. Bioleaching technology in minerals processin. Mintek, Biotechnology Division 2006; p. 110-115.
[6] Davis B, Carol S Nicolle J and Paul R .Ferrous iron oxidation and leaching of copper ore with halotolerant bacteria in ore columns. Hydrometallurgy 2008; 94(1–4): p. 144-147.
[7] Lundgren D G and Silver M. Ore leaching by bacteria. Annu. Rev.Microbial 1980; 34: p. 263-283.
[8] Munoz DB and Dreisinger WC. Silver- catalyzed bioleaching of low-grade copper ores, Part III Column reactors, Hydrometallurgy 2007; 88 P:35-57
[9] Dee Jay F, Debby F, Karen SM and Daphne LS. Evaluation of a Fluorescent Lectin-Based Staining Technique for Some Acidophilic Mining Bacteria. Applied and enviromental microbiology 2000; 5(66): p. 2208-2210.
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[11] Foucher S, Battaglia-Brunet F, Hugues P, Clarens M, Godon JJ and Morin D. Evolution of the bacterial population during the batch bioleaching of a cobaltiferous pyrite in a suspended-solids bubble column and comparison with a mechanically agitated reactor. Hydrometallurgy 2003; 71(1–2): p. 5-12.
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[16] Gardner M.N, Deane S M. and Rawlings D E. Isolation of a New Broad-Host-Range IncQ-Like Plasmid, pTC-F14, from the Acidophilic Bacterium Acidithiobacillus caldus and Analysis of the Plasmid Replicon. Journal of Bacteriology. 2001; 183(11): p. 3303-3309.
[17] Kelly D P and Wood A P. Reclassification of some species of Thiobacillus to the newly designed genera Acidithiobacillus gen gov .,Halothiobacillus gen. gov. and and Thermithiobacillus gen. gov. International journal of systemic and evolutionary microbiology 2000; 50: p. 511-516.
[18] Watling H R . The bioleaching of sulphide minerals with emphasis on copper sulphides - A review, Hydrometallurgy 2006; 84(1–2): p. 81-108.
[19] Watling HR. The bioleaching of sulphide minerals with emphasis on copper sulphides - A review, Hydrometallurgy 2006; 84(1–2): p. 81-108.
[20] Xia Jin-lan, Peng An-an He, huan Yang yu, LIU, Xue-duan QIU and Guan-zhou.. A new strain Acidithiobacillus albertensis BY-05 for bioleaching of metal sulfides ores. Trans.Nonferrous Met.Soc.China 2007; 17: p. 168-175.
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  • APA Style

    Jamshid Raheb, Sorur SHaroknyan, Fatemeh Nazari, Yasin Rakhshany. (2015). The Studing of Silver Nanoparticle Effect on the Copper Bioleaching Output from Low Grade Sulfidic Ores. American Journal of Nano Research and Applications, 3(1), 6-11. https://doi.org/10.11648/j.nano.20150301.12

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    ACS Style

    Jamshid Raheb; Sorur SHaroknyan; Fatemeh Nazari; Yasin Rakhshany. The Studing of Silver Nanoparticle Effect on the Copper Bioleaching Output from Low Grade Sulfidic Ores. Am. J. Nano Res. Appl. 2015, 3(1), 6-11. doi: 10.11648/j.nano.20150301.12

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    AMA Style

    Jamshid Raheb, Sorur SHaroknyan, Fatemeh Nazari, Yasin Rakhshany. The Studing of Silver Nanoparticle Effect on the Copper Bioleaching Output from Low Grade Sulfidic Ores. Am J Nano Res Appl. 2015;3(1):6-11. doi: 10.11648/j.nano.20150301.12

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  • @article{10.11648/j.nano.20150301.12,
      author = {Jamshid Raheb and Sorur SHaroknyan and Fatemeh Nazari and Yasin Rakhshany},
      title = {The Studing of Silver Nanoparticle Effect on the Copper Bioleaching Output from Low Grade Sulfidic Ores},
      journal = {American Journal of Nano Research and Applications},
      volume = {3},
      number = {1},
      pages = {6-11},
      doi = {10.11648/j.nano.20150301.12},
      url = {https://doi.org/10.11648/j.nano.20150301.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.nano.20150301.12},
      abstract = {The extraction of metals from ores causes various environmental pollutions. Since Iran is located on the so-called ‘copper belt’ and holds a significant share of the world’s copper mines and resources, reduction of pollution from these mines can have an important effect on the overall reduction of pollution. Copper processing methods include pyrometallurgy and hydrometallurgy. Pyrometallurgy is mainly used in high grade mines whereas hydrometallurgy process is used in lower grade mines. In low grade copper sulfide mines, hydrometallurgy processes are used which use a lot of energy to covert mineral deposits into oxide forms which are then leached using sulfuric acid, or are extracted using bioleaching process. In acidic leaching, a lot of environmental pollution is created. Bioleaching process is an environmentally-friendly method which is mainly used in mines where the common physicochemical methods are not profitable. In this study, we have tried to increase the efficiency of bioleaching process by adding silver nanoparticle in order to increase the popularity of this method. For this purpose, initially the indigenous bacteria were separated from the ores and after adoption to silver, the bacteria were used in bioleaching tests. Three concentrations of silver component were used for the bioleaching tests. The results were compared to cases where no bacteria and no silver compounds were used, which showed significant increase in copper extraction efficiency. In the next step, the optimum concentration of silver was used in the percolation column. In this stage, four columns were set up for ‘with bacteria and silver’, ‘with silver’, ‘with bacteria’ and ‘without bacteria and silver’. Results show that the column with bacteria and silver produced the highest efficiency of copper extraction.},
     year = {2015}
    }
    

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  • TY  - JOUR
    T1  - The Studing of Silver Nanoparticle Effect on the Copper Bioleaching Output from Low Grade Sulfidic Ores
    AU  - Jamshid Raheb
    AU  - Sorur SHaroknyan
    AU  - Fatemeh Nazari
    AU  - Yasin Rakhshany
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    N1  - https://doi.org/10.11648/j.nano.20150301.12
    DO  - 10.11648/j.nano.20150301.12
    T2  - American Journal of Nano Research and Applications
    JF  - American Journal of Nano Research and Applications
    JO  - American Journal of Nano Research and Applications
    SP  - 6
    EP  - 11
    PB  - Science Publishing Group
    SN  - 2575-3738
    UR  - https://doi.org/10.11648/j.nano.20150301.12
    AB  - The extraction of metals from ores causes various environmental pollutions. Since Iran is located on the so-called ‘copper belt’ and holds a significant share of the world’s copper mines and resources, reduction of pollution from these mines can have an important effect on the overall reduction of pollution. Copper processing methods include pyrometallurgy and hydrometallurgy. Pyrometallurgy is mainly used in high grade mines whereas hydrometallurgy process is used in lower grade mines. In low grade copper sulfide mines, hydrometallurgy processes are used which use a lot of energy to covert mineral deposits into oxide forms which are then leached using sulfuric acid, or are extracted using bioleaching process. In acidic leaching, a lot of environmental pollution is created. Bioleaching process is an environmentally-friendly method which is mainly used in mines where the common physicochemical methods are not profitable. In this study, we have tried to increase the efficiency of bioleaching process by adding silver nanoparticle in order to increase the popularity of this method. For this purpose, initially the indigenous bacteria were separated from the ores and after adoption to silver, the bacteria were used in bioleaching tests. Three concentrations of silver component were used for the bioleaching tests. The results were compared to cases where no bacteria and no silver compounds were used, which showed significant increase in copper extraction efficiency. In the next step, the optimum concentration of silver was used in the percolation column. In this stage, four columns were set up for ‘with bacteria and silver’, ‘with silver’, ‘with bacteria’ and ‘without bacteria and silver’. Results show that the column with bacteria and silver produced the highest efficiency of copper extraction.
    VL  - 3
    IS  - 1
    ER  - 

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Author Information
  • National Institute of Genetic Engineering and Biotechnology, Tehran, Iran

  • Department of Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran

  • National Institute of Genetic Engineering and Biotechnology, Tehran, Iran

  • Department of Microbiology, Islamic Azad University North Tehran Branch, karaj, Iran

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