期刊
TRANSACTIONS OF THE INSTITUTE OF METAL FINISHING
卷 96, 期 5, 页码 253-257出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/00202967.2018.1507320
关键词
Bottom ash; leaching; silver recovery; electrodeposition-redox replacement; circular economy
资金
- Academy of Finland (NoWASTE) [297962]
- Finnish Innovation Agency (CMEco) [7405/31/2016]
- Finnish Steel and Metal Producers (METSEK)
In the current study, electrodeposition-redox replacement was applied to a hydrometallurgical solution with the main elements of Ca (13.8 g L-1), Al (4.7 g L-1), Cu (2.5 g L-1), Zn (1.2 g L-1), Fe (1.2 g L-1), S (1 g L-1), Mg (0.8 g L-1), P (0.5 g L-1) and Ag (3.5 ppm). The solution originated from the leaching experiment of incinerator plant bottom ash, which was dissolved into 2 M HCl media at T=30 degrees C. The resulting deposit on the electrode surface was analysed with SEM-EDS and the observed Ag/(Cu + Zn) ratio (0.3) indicated remarkable enrichment of silver on the surface, when compared to the ratio of these elements (Ag/(Cu+Zn)) in the solution (6.8 x 10(-5)). The enrichment of Ag vs. (Cu + Zn) could be demonstrated to increase ca. 4500 fold compared to the ratio of the elements in solution.
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