期刊
WASTE MANAGEMENT
卷 34, 期 5, 页码 901-907出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.wasman.2014.02.014
关键词
Precious metals; Waste PCBs; Recovering
资金
- National Natural Science Foundation of China [51308488]
- Natural Science Foundation of Jiangsu province [BK20130449]
- Science and Technology Cooperation Fund Program of Yangzhou City and Yangzhou University [2012038-15]
- Scientific Research Project of Environmental fund of Yangzhou city [YHK1307]
A new strain, Pseudomonas Chlororaphis (PC), was found for dissolving gold, silver, and copper from the metallic particles of crushed waste printed circuit boards (PCBs). The optimized conditions that greatly improved the ability of producing CN- (for dissolving metals) were obtained. Dissolving experiments of pure gold, silver, and copper showed that the metals could be changed into Au+, Ag+, and Cu2+. PC cells and their secreta would adsorb metallic ions. Meanwhile, metallic ions destroyed the growth of PC. Dissolving experiments of metallic particles from crushed waste PCBs were performed by PC. The results indicated that 8.2% of the gold, 12.1% silver, and 52.3% copper were dissolved into solution. This paper contributed significance information to recovering precious metals from waste PCBs by bioleaching. (C) 2014 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据