Bioleaching of gold and copper from waste mobile phone PCBs by using a cyanogenic bacterium
dc.contributor.author | Chi, T. | |
dc.contributor.author | Lee, J. | |
dc.contributor.author | Pandey, B. | |
dc.contributor.author | Yoo, Kyoungkeun | |
dc.contributor.author | Jeong, J. | |
dc.contributor.editor | na | |
dc.date.accessioned | 2018-04-30T02:40:05Z | |
dc.date.available | 2018-04-30T02:40:05Z | |
dc.date.created | 2018-04-16T07:41:38Z | |
dc.date.issued | 2011 | |
dc.identifier.citation | Chi, T. and Lee, J. and Pandey, B. and Yoo, K. and Jeong, J. 2011. Bioleaching of gold and copper from waste mobile phone PCBs by using a cyanogenic bacterium, in na (ed), Bio and Hydrometallurgy ’10, Nov 8 2010, pp. 1219-1222. Cape Town, South Africa: na. | |
dc.identifier.uri | http://hdl.handle.net/20.500.11937/66300 | |
dc.identifier.doi | 10.1016/j.mineng.2011.05.009 | |
dc.description.abstract |
Chromobacterium violaceum (C. violaceum), a cyanide generating bacterium has been used to leach out gold and copper from the waste mobile phone printed circuit boards (PCBs) containing ~34.5% Cu and 0.025% Au in YP (yeast extract and polypeptone with glycine) medium. The bioleaching was carried out in an incubator shaker (150 rpm) at 30 °C and 15 g/L pulp density in the pH range 8-11. Dissolution of gold and copper increased from 7.78% (0.225 ppm) to 10.8% (0.46 ppm) and 4.9% (419 ppm) to 11.4% (879 ppm) in 8 days with increase in pH from 8 to 11 and 8 to 10 respectively. Supplementing oxygen with 0.004% (v/v) H 2 O 2 increased the copper leaching to 24.6% (1743 ppm) at pH 10 in 8 days whereas improvement in gold leaching was insignificant with the recovery of 11.31% Au at pH 11.0. The waste PCBs can thus be recycled in environmental friendly manner. © 2011 Elsevier Ltd. All rights reserved. | |
dc.publisher | na | |
dc.title | Bioleaching of gold and copper from waste mobile phone PCBs by using a cyanogenic bacterium | |
dc.type | Conference Paper | |
dcterms.source.volume | 24 | |
dcterms.source.startPage | 1219 | |
dcterms.source.endPage | 1222 | |
dcterms.source.issn | 0892-6875 | |
dcterms.source.title | Minerals Engineering | |
dcterms.source.series | Minerals Engineering | |
dcterms.source.conference | Bio and Hydrometallurgy ’10 | |
dcterms.source.conference-start-date | Nov 8 2010 | |
dcterms.source.conferencelocation | Cape Town, South Africa | |
dcterms.source.place | South Africa | |
curtin.accessStatus | Fulltext not available |
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