Recovery of heavy metals from spent etching waste solution of printed circuit board (PCB) manufacturing
The process of etching is the most crucial part of the work of manufacturing printed circuit boards (PCB). In the etching process by nitric acid, a spent etching waste solution of composition 250 g/L HNO3, 30-40 g/L Cu, 30-40 g/L Sn, 30-40 g/L Pb and 20-25 g/L Fe is produced. High metal concentratio...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universiti Putra Malaysia Press
2013
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| Online Access: | http://psasir.upm.edu.my/id/eprint/28749/1/28749.pdf http://psasir.upm.edu.my/id/eprint/28749/ http://www.pertanika.upm.edu.my/view_archives.php?journal=JST-21-2-7 |
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