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Bioextraction of Copper from Printed Circuit Boards: Influence of Initial Concentration of Ferrous Iron

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REWAS 2013

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Abstract

Printed circuit boards are found in all electric and electronic equipment and are particularly problematic to recycle because of the heterogeneous mix of organic material, metals, and fiberglass. Additionally, printed circuit boards can be considered a secondary source of copper and bacterial leaching can be applied to copper recovery. This study investigated the influence of initial concentration of ferrous iron on bacterial leaching to recover copper from printed circuit boards using Acidithiobacillus ferrooxidans-LR. Printed circuit boards from computers were comminuted using a hammer mill. The powder obtained was magnetically separated and the non magnetic material used in this study. A shake flask study was carried out on the non magnetic material using a rotary shaker at 30°C, 170 rpm and different initial concentrations of ferrous iron (gL−1): 6.75; 13.57 and 16.97. Abiotic controls were also run in parallel. The monitored parameters were pH, Eh, ferrous iron concentration and copper extraction (spectroscopy of atomic absorption). The results showed that using initial concentration of ferrous iron of 6.75gL−1 were extracted 99% of copper by bacterial leaching.

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Author information

Authors and Affiliations

  1. Department of Metallurgical and Materials Engineering, University of São Paulo, Av. Prof. Mello Moraes, 2463, São Paulo, SP, 05508-030, Brazil

    Luciana Harue Yamane Ph.D., Denise Crocce Romano Espinosa Ph.D. & Jorge Alberto Soares Tenório Ph.D.

Authors
  1. Luciana Harue Yamane Ph.D.
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  2. Denise Crocce Romano Espinosa Ph.D.
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  3. Jorge Alberto Soares Tenório Ph.D.
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Editor information

Editors and Affiliations

  1. SINTEF, Trondheim, Norway

    Anne Kvithyld (a senior research scientist) (a senior research scientist)

  2. Umicore Precious Metals Refining, Hoboken, Belgium

    Christina Meskers (leads the business development and marketing team) (leads the business development and marketing team)

  3. Energy Systems Division, Argonne National Laboratory, USA

    Gregory Krumdick (principal systems engineer) (principal systems engineer)

  4. Kroll Institute for Extractive Metallurgy in Metallurgical & Materials Engineering, Colorado School of Mines, USA

    Brajendra Mishra (professor and the Assoc. Director) (professor and the Assoc. Director)

  5. Outotec Finland, Finland

    Markus Reuter (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor) (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor)

  6. Aalto University, Finland

    Markus Reuter (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor) (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor)

  7. University of Melbourne, Australia

    Markus Reuter (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor) (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor)

  8. Central South University Changsha, China

    Markus Reuter (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor) (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor)

  9. TU Delft, Netherlands

    Markus Reuter (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor) (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor)

  10. University of Stellenbosch, South Africa

    Markus Reuter (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor) (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor)

  11. Saint-Gobain Innovative Materials R&D, Belgium

    Cong Wang (Senior Research Engineer) (Senior Research Engineer)

  12. Missouri University of Science and Technology, USA

    Mark Schlesinger (Professor of Metallurgical Engineering) (Professor of Metallurgical Engineering)

  13. Golisano Institute for Sustainability, USA

    Gabrielle Gaustad Ph.D. (Assistant Professor) (Assistant Professor)

  14. Rochester Institute of Technology, USA

    Gabrielle Gaustad Ph.D. (Assistant Professor) (Assistant Professor)

  15. Worcester Polytechnic Institute (WPI), USA

    Diana Lados (Associate Professor, Founding Director) (Associate Professor, Founding Director)

  16. Integrative Materials Design Center (iMdc), USA

    Diana Lados (Associate Professor, Founding Director) (Associate Professor, Founding Director)

  17. Argonne National Laboratory, USA

    Jeffrey Spangenberger (Engineering Specialist, Senior) (Engineering Specialist, Senior)

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© 2013 TMS (The Minerals, Metals & Materials Society)

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Yamane, L.H., Espinosa, D.C.R., Tenório, J.A.S. (2013). Bioextraction of Copper from Printed Circuit Boards: Influence of Initial Concentration of Ferrous Iron. In: Kvithyld, A., et al. REWAS 2013. Springer, Cham. https://doi.org/10.1007/978-3-319-48763-2_38

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