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Assessment of Pre-Treatment Techniques for Coarse Printed Circuit Boards (PCBs) Recycling

Published:

January 5, 2022

Author:

Kai Dean Kang, I. M. Saman K. Ilankoon, Nimila Dushyantha and Meng Nan Chong

Abstract:

Waste electrical and electronic equipment or e-waste generation has been skyrocketing over the last decades. This poses waste management and value recovery challenges, especially in developing countries. Printed circuit boards (PCBs) are mainly employed in value recovery operations. Despite the high energy costs of generating crushed and milled particles of the order of several microns, those are employed in conventional hydrometallurgical techniques. Coarse PCB pieces (of order a few centimetres) based value recovery operations are not reported at the industrial scale as the complexities of the internal structure of PCBs limit efficient metal and non-metal separation....

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