Novel strategies of bioleaching metals from printed circuit boards (PCBs) in mixed cultivation of two acidophiles
作者： Guobin Liang , Yiwei Mo , Quanfa Zhou
DOI: 10.1016/J.ENZMICTEC.2010.08.002
关键词:
摘要: Effects of two acidophiles on metals recovery in printed circuit boards (PCBs) were investigated. Based the phenomenon that PCBs addition times and amounts adversely inhibited bacterial growth thus lowered bioleaching capacity, novel strategies multiple additions (4 g/l at 48 h, 6 96 h 8 144 h) developed separated culture Acidithiobacillus thiooxidans ferrooxidans. As a result, percentages Cu, Ni, Zn Pb leached by A. 78, 73, 75 71%, corresponding values 80, 76 72% ferrooxidans after 240 cultivation. Further applying to mixed acidophiles, extraction 94, 89, 90 86%, respectively. Moreover, increased redox potential pH filtrate observed, suggesting mechanism involved enhancing culture.
elsevier.com
sci-hub.se 参考文章(37)
Douglas E. Rawlings, Biomining : Theory, Microbes and Industrial Processes ,(2006)
D. Keith Ewart, Martin N. Hughes, The Extraction of Metals from Ores Using Bacteria Advances in Inorganic Chemistry. ,vol. 36, pp. 103- 135 ,(1991) , 10.1016/S0898-8838(08)60038-0
J.A. Muñoz, D.B. Dreisinger, W.C. Cooper, S.K. Young, Silver-catalyzed bioleaching of low-grade copper ores. Part II: Stirred tank tests Hydrometallurgy. ,vol. 88, pp. 19- 34 ,(2007) , 10.1016/J.HYDROMET.2007.01.007
K. Gloe, P. Mühl, M. Knothe, Recovery of precious metals from electronic scrap, in particular from waste products of the thick-layer technique Hydrometallurgy. ,vol. 25, pp. 99- 110 ,(1990) , 10.1016/0304-386X(90)90067-C
M Bertram, T.E Graedel, H Rechberger, S Spatari, The contemporary European copper cycle: waste management subsystem Ecological Economics. ,vol. 42, pp. 43- 57 ,(2002) , 10.1016/S0921-8009(02)00100-3
Moon-Sung Choi, Kyung-Suk Cho, Dong-Su Kim, Dong-Jin Kim, Microbial recovery of copper from printed circuit boards of waste computer by Acidithiobacillus ferrooxidans. Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering. ,vol. 39, pp. 2973- 2982 ,(2004) , 10.1081/LESA-200034763
Mohammad A. Faramarzi, Marion Stagars, Enrico Pensini, Walter Krebs, Helmut Brandl, Metal solubilization from metal-containing solid materials by cyanogenic Chromobacterium violaceum. Journal of Biotechnology. ,vol. 113, pp. 321- 326 ,(2004) , 10.1016/J.JBIOTEC.2004.03.031
R.L. Pozzo, A.S. Malicsi, I. Iwasaki, Removal of lead from printed circuit board scrap by an electrodissolution-delamination method Resources, Conservation and Recycling. ,vol. 5, pp. 21- 34 ,(1991) , 10.1016/0921-3449(91)90037-O
H Brandl, R Bosshard, M Wegmann, Computer-munching microbes: metal leaching from electronic scrap by bacteria and fungi Hydrometallurgy. ,vol. 59, pp. 319- 326 ,(2001) , 10.1016/S0304-386X(00)00188-2
Tamás Kékesi, Tamás I Török, Gábor Kabelik, Extraction of tin from scrap by chemical and electrochemical methods in alkaline media Hydrometallurgy. ,vol. 55, pp. 213- 222 ,(2000) , 10.1016/S0304-386X(99)00091-2