Recycling of Cu powder from industrial sludge by combined acid leaching, chemical exchange and ferrite process

Journal of Hazardous Materials
Yao-Jen TuJie-Chung Lou

Abstract

A method in combination of acid leaching, chemical exchange and ferrite process was applied to recycle copper and confer higher chemical stability to the sludge generated from etching process in printed circuit board industry. Ninety-five percent copper could be recycled in the form of powder from the sludge. Moreover, not only the wastewater after chemical exchange can be treated to fulfill the effluent standard, but also the sludge can satisfy the toxicity characteristic leaching procedure (TCLP) limits made by Taiwan's environmental protection administration.

References

Jan 1, 1994·Environmental Pollution·S S MandaokarS S Dara
Jun 5, 2004·Journal of Hazardous Materials·Mehmet Erdem, Fikret Tumen
Oct 20, 2006·Journal of Hazardous Materials·Y A El-NadiH F Aly
Sep 12, 2009·Journal of Hazardous Materials·Karin Karlfeldt FedjeBritt-Marie Steenari

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Citations

Aug 4, 2012·Journal of Hazardous Materials·Yao-Jen TuChien-Kuei Chang
Jun 26, 2012·Journal of Hazardous Materials·Yao-Jen TuChen-Feng You

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