Mineral processing / Recycling

[1K0401-08-06] Study on particle geometry of PCB using image processing after shredding by twin shaft shredder

○Yonggu Kim¹, Gjergj Dodbiba¹ (1. The University of Tokyo)

Chairman:Shigeki KOYANAKA (AIST),

Keywords:Particle geometry, Printed circuit board, Image processing

This study presents an analysis of the shape characteristics of PCB(Printed circuit board) from Waste Electrical and Electronic Equipment which is a valuable secondary material source for recycling metals. In order to recycle this PCB waste, the crushing method can be used to liberate components on PCB before the physical separation process and metal recovery process. The analysis using image processing provides valuable information about particle geometry such as size, aspect ratio, and circularity of particles to design separation process after crushing PCB.