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

被引：96

作者：

Kim, Min-Ji ^{[1
]}

Seo, Ja-Yeon ^{[2
]}

Choi, Yong-Seok ^{[3
]}

Kim, Gyu-Hyeok ^{[2
]}

机构：

[1] Korea Univ, Plus Ecoleader Educ Ctr BK21, Seoul 136713, South Korea

[2] Korea Univ, Coll Life Sci & Biotechnol, Div Environm Sci & Ecol Engn, 5-1 Anam Dong, Seoul 136701, South Korea

[3] Korea Forest Res Inst, Dept Forest Prod, Div Wood Engn, 57 Hoegiro, Seoul 130712, South Korea

来源：

WASTE MANAGEMENT | 2016年 / 51卷

关键词：

Aspergillus; Bioleaching; Heavy metal; Ni-Cd battery; Zn-Mn battery; METALS; RECOVERY; ZINC; ALKALINE; ACID; EXTRACTION; MECHANISM; NICKEL; COBALT;

D O I：

10.1016/j.wasman.2015.11.001

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：168 / 173

页数：6

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