Bioleaching of spent Zn-Mn or Ni-Cd batteries by Aspergillus species

Min Ji Kim; Ja Yeon Seo; Yong Seok Choi; Gyu Hyeok Kim

doi:10.1016/j.wasman.2015.11.001

Bioleaching of spent Zn-Mn or Ni-Cd batteries by Aspergillus species

Min Ji Kim, Ja Yeon Seo, Yong Seok Choi, Gyu Hyeok Kim

Research output: Contribution to journal › Article › peer-review

116 Citations (Scopus)

Abstract

This research explores the recovery of metals from spent Zn-Mn or Ni-Cd batteries by a bioleaching using six Aspergillus species. Two different nutrients, malt extract and sucrose, were used to produce different types of organic acids. Oxalic acid and citric acid were shown to be the dominant organic acid in malt extract and sucrose media, respectively. In the bioleaching, the metal removal was higher in sucrose media than malt extract. All species, except A. niger KUC5254, showed more than 90% removal of metals from Zn-Mn battery. For Ni-Cd battery, more than 95% of metals was extracted by A. niger KUC5254 and A. tubingensis KUC5037. As a result, A. tubingensis KUC5037 which is a non-ochratoxigenic fungus was considered to have the greatest potential for improving the safety and efficiency of the bioleaching.

Original language	English
Pages (from-to)	168-173
Number of pages	6
Journal	Waste Management
Volume	51
DOIs	https://doi.org/10.1016/j.wasman.2015.11.001
Publication status	Published - 2016 May 1

Bibliographical note

Funding Information:
This research was supported by a Korea University Grant ( K1421041 ).

Publisher Copyright:
© 2015 Elsevier Ltd.

Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.

Keywords

Aspergillus
Bioleaching
Heavy metal
Ni-Cd battery
Zn-Mn battery

ASJC Scopus subject areas

Waste Management and Disposal

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10.1016/j.wasman.2015.11.001

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title = "Bioleaching of spent Zn-Mn or Ni-Cd batteries by Aspergillus species",

abstract = "This research explores the recovery of metals from spent Zn-Mn or Ni-Cd batteries by a bioleaching using six Aspergillus species. Two different nutrients, malt extract and sucrose, were used to produce different types of organic acids. Oxalic acid and citric acid were shown to be the dominant organic acid in malt extract and sucrose media, respectively. In the bioleaching, the metal removal was higher in sucrose media than malt extract. All species, except A. niger KUC5254, showed more than 90% removal of metals from Zn-Mn battery. For Ni-Cd battery, more than 95% of metals was extracted by A. niger KUC5254 and A. tubingensis KUC5037. As a result, A. tubingensis KUC5037 which is a non-ochratoxigenic fungus was considered to have the greatest potential for improving the safety and efficiency of the bioleaching.",

keywords = "Aspergillus, Bioleaching, Heavy metal, Ni-Cd battery, Zn-Mn battery",

author = "Kim, {Min Ji} and Seo, {Ja Yeon} and Choi, {Yong Seok} and Kim, {Gyu Hyeok}",

note = "Funding Information: This research was supported by a Korea University Grant ( K1421041 ). Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.",

year = "2016",

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doi = "10.1016/j.wasman.2015.11.001",

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AU - Kim, Min Ji

AU - Seo, Ja Yeon

AU - Choi, Yong Seok

AU - Kim, Gyu Hyeok

PY - 2016/5/1

Y1 - 2016/5/1

N2 - This research explores the recovery of metals from spent Zn-Mn or Ni-Cd batteries by a bioleaching using six Aspergillus species. Two different nutrients, malt extract and sucrose, were used to produce different types of organic acids. Oxalic acid and citric acid were shown to be the dominant organic acid in malt extract and sucrose media, respectively. In the bioleaching, the metal removal was higher in sucrose media than malt extract. All species, except A. niger KUC5254, showed more than 90% removal of metals from Zn-Mn battery. For Ni-Cd battery, more than 95% of metals was extracted by A. niger KUC5254 and A. tubingensis KUC5037. As a result, A. tubingensis KUC5037 which is a non-ochratoxigenic fungus was considered to have the greatest potential for improving the safety and efficiency of the bioleaching.

AB - This research explores the recovery of metals from spent Zn-Mn or Ni-Cd batteries by a bioleaching using six Aspergillus species. Two different nutrients, malt extract and sucrose, were used to produce different types of organic acids. Oxalic acid and citric acid were shown to be the dominant organic acid in malt extract and sucrose media, respectively. In the bioleaching, the metal removal was higher in sucrose media than malt extract. All species, except A. niger KUC5254, showed more than 90% removal of metals from Zn-Mn battery. For Ni-Cd battery, more than 95% of metals was extracted by A. niger KUC5254 and A. tubingensis KUC5037. As a result, A. tubingensis KUC5037 which is a non-ochratoxigenic fungus was considered to have the greatest potential for improving the safety and efficiency of the bioleaching.

KW - Aspergillus

KW - Bioleaching

KW - Heavy metal

KW - Ni-Cd battery

KW - Zn-Mn battery

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Bioleaching of spent Zn-Mn or Ni-Cd batteries by Aspergillus species

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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