Comparison of reductive and oxidative bioleaching of jarosite for valuable metals recovery

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

1 Citation (Scopus)

Abstract

Jarosite is a typical stream of zinc refineries, with high production rates and possible release of metal-contaminated seepage waters during long-term storage in respective disposal sites. Jarosite contains remarkable concentrations of valuable metals, like several weight percentages of zinc and lead, in addition to lower concentrations of copper, silver, germanium, gallium and indium. In this study, jarosite was treated with reductive and oxidative bioleaching for valuable metals recovery. The reductive bioleaching was seen to enhance iron liberation, by transforming the dissolved Fe(III) to Fe(II), while in the oxidative bioleaching iron liberation was lower. Zinc, copper, indium, gallium and germanium dissolution rates were rather identical with both methods. In reactor experiments, the zinc and copper yields were higher than in flask experiments resulting at best in the leaching yield of 35% and 38% for zinc and copper, respectively. Indium and gallium yields were between 5-8%, but approximately 40% of germanium was leached.
Original languageEnglish
Title of host publication22nd International Biohydrometallurgy Symposium
EditorsSabrina Hedrich, Kathrin Rübberdt, Franz Glombitza, Wolfgang Sand, Axel Schippers, Mario Vera Véliz, Sabine Willscher
Pages24-27
Number of pages4
DOIs
Publication statusPublished - 2017
MoE publication typeA4 Article in a conference publication

Fingerprint

jarosite
zinc
gallium
indium
germanium
metal
copper
iron
silver
experiment
dissolution
leaching
comparison

Keywords

  • bioleaching
  • contamination
  • gallium
  • germanium
  • indium
  • leaching
  • metal recovery
  • metal refineries
  • metals
  • river pollution
  • seepage
  • zinc

Cite this

Mäkinen, J., Salo, M., Hassinen, H., & Kinnunen, P. (2017). Comparison of reductive and oxidative bioleaching of jarosite for valuable metals recovery. In S. Hedrich, K. Rübberdt, F. Glombitza, W. Sand, A. Schippers, M. V. Véliz, & S. Willscher (Eds.), 22nd International Biohydrometallurgy Symposium (pp. 24-27). Solid State Phenomena, Vol.. 262 https://doi.org/10.4028/www.scientific.net/SSP.262.24
Mäkinen, Jarno ; Salo, Marja ; Hassinen, Hanna ; Kinnunen, Päivi. / Comparison of reductive and oxidative bioleaching of jarosite for valuable metals recovery. 22nd International Biohydrometallurgy Symposium. editor / Sabrina Hedrich ; Kathrin Rübberdt ; Franz Glombitza ; Wolfgang Sand ; Axel Schippers ; Mario Vera Véliz ; Sabine Willscher. 2017. pp. 24-27 (Solid State Phenomena, Vol. 262).
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title = "Comparison of reductive and oxidative bioleaching of jarosite for valuable metals recovery",
abstract = "Jarosite is a typical stream of zinc refineries, with high production rates and possible release of metal-contaminated seepage waters during long-term storage in respective disposal sites. Jarosite contains remarkable concentrations of valuable metals, like several weight percentages of zinc and lead, in addition to lower concentrations of copper, silver, germanium, gallium and indium. In this study, jarosite was treated with reductive and oxidative bioleaching for valuable metals recovery. The reductive bioleaching was seen to enhance iron liberation, by transforming the dissolved Fe(III) to Fe(II), while in the oxidative bioleaching iron liberation was lower. Zinc, copper, indium, gallium and germanium dissolution rates were rather identical with both methods. In reactor experiments, the zinc and copper yields were higher than in flask experiments resulting at best in the leaching yield of 35{\%} and 38{\%} for zinc and copper, respectively. Indium and gallium yields were between 5-8{\%}, but approximately 40{\%} of germanium was leached.",
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author = "Jarno M{\"a}kinen and Marja Salo and Hanna Hassinen and P{\"a}ivi Kinnunen",
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Mäkinen, J, Salo, M, Hassinen, H & Kinnunen, P 2017, Comparison of reductive and oxidative bioleaching of jarosite for valuable metals recovery. in S Hedrich, K Rübberdt, F Glombitza, W Sand, A Schippers, MV Véliz & S Willscher (eds), 22nd International Biohydrometallurgy Symposium. Solid State Phenomena, vol. 262, pp. 24-27. https://doi.org/10.4028/www.scientific.net/SSP.262.24

Comparison of reductive and oxidative bioleaching of jarosite for valuable metals recovery. / Mäkinen, Jarno; Salo, Marja; Hassinen, Hanna; Kinnunen, Päivi.

22nd International Biohydrometallurgy Symposium. ed. / Sabrina Hedrich; Kathrin Rübberdt; Franz Glombitza; Wolfgang Sand; Axel Schippers; Mario Vera Véliz; Sabine Willscher. 2017. p. 24-27 (Solid State Phenomena, Vol. 262).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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T1 - Comparison of reductive and oxidative bioleaching of jarosite for valuable metals recovery

AU - Mäkinen, Jarno

AU - Salo, Marja

AU - Hassinen, Hanna

AU - Kinnunen, Päivi

PY - 2017

Y1 - 2017

N2 - Jarosite is a typical stream of zinc refineries, with high production rates and possible release of metal-contaminated seepage waters during long-term storage in respective disposal sites. Jarosite contains remarkable concentrations of valuable metals, like several weight percentages of zinc and lead, in addition to lower concentrations of copper, silver, germanium, gallium and indium. In this study, jarosite was treated with reductive and oxidative bioleaching for valuable metals recovery. The reductive bioleaching was seen to enhance iron liberation, by transforming the dissolved Fe(III) to Fe(II), while in the oxidative bioleaching iron liberation was lower. Zinc, copper, indium, gallium and germanium dissolution rates were rather identical with both methods. In reactor experiments, the zinc and copper yields were higher than in flask experiments resulting at best in the leaching yield of 35% and 38% for zinc and copper, respectively. Indium and gallium yields were between 5-8%, but approximately 40% of germanium was leached.

AB - Jarosite is a typical stream of zinc refineries, with high production rates and possible release of metal-contaminated seepage waters during long-term storage in respective disposal sites. Jarosite contains remarkable concentrations of valuable metals, like several weight percentages of zinc and lead, in addition to lower concentrations of copper, silver, germanium, gallium and indium. In this study, jarosite was treated with reductive and oxidative bioleaching for valuable metals recovery. The reductive bioleaching was seen to enhance iron liberation, by transforming the dissolved Fe(III) to Fe(II), while in the oxidative bioleaching iron liberation was lower. Zinc, copper, indium, gallium and germanium dissolution rates were rather identical with both methods. In reactor experiments, the zinc and copper yields were higher than in flask experiments resulting at best in the leaching yield of 35% and 38% for zinc and copper, respectively. Indium and gallium yields were between 5-8%, but approximately 40% of germanium was leached.

KW - bioleaching

KW - contamination

KW - gallium

KW - germanium

KW - indium

KW - leaching

KW - metal recovery

KW - metal refineries

KW - metals

KW - river pollution

KW - seepage

KW - zinc

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M3 - Conference article in proceedings

SN - 978-3-0357-1180-6

SP - 24

EP - 27

BT - 22nd International Biohydrometallurgy Symposium

A2 - Hedrich, Sabrina

A2 - Rübberdt, Kathrin

A2 - Glombitza, Franz

A2 - Sand, Wolfgang

A2 - Schippers, Axel

A2 - Véliz, Mario Vera

A2 - Willscher, Sabine

ER -

Mäkinen J, Salo M, Hassinen H, Kinnunen P. Comparison of reductive and oxidative bioleaching of jarosite for valuable metals recovery. In Hedrich S, Rübberdt K, Glombitza F, Sand W, Schippers A, Véliz MV, Willscher S, editors, 22nd International Biohydrometallurgy Symposium. 2017. p. 24-27. (Solid State Phenomena, Vol. 262). https://doi.org/10.4028/www.scientific.net/SSP.262.24