Alex Luyima, Honglan Shi
Leaching process has been suggested to recover most metals from waste PWBs. In this study, the leaching behavior of most metals present in waste PWBs is evaluated before and after thermal treatment. Different leaching acids: hydrochloric acid (HCl), nitric acid (HNO3), and aqua regia are compared. The effects of acid concentration, particle size of the sample, leaching time, and temperature are examined. Results revealed that most metals are present in small particle size and sequential leaching of PWBs with a combination of HCl acid and aqua regia is capable of dissolving most of the metals content of PWBs. Leaching of thermally treated PWBs produced the highest leaching percentages for similar leaching conditions.
@article{c318907d-52db-446b-8109-2b420414b7bc,
title={LEACHING STUDIES FOR METALS RECOVERY FROM WASTE PRINTED WIRING BOARDS},
author={Alex Luyima and Honglan Shi},
year={2023},
language={en}
}TY - JOUR TI - LEACHING STUDIES FOR METALS RECOVERY FROM WASTE PRINTED WIRING BOARDS AU - Alex Luyima AU - Honglan Shi PY - 2023 LA - en ER -
Printed circuit boards (PCBs) from electronic gadgets at the end of their useful life period are currently being dumped in landfills or incinerated, c
Hao Cui, Corby G Anderson
This study provides an up-to-date review of recycling of printed circuit boards (PCBs), specifically in hydrometallurgical treatment. Waste printed ci
ROPAFADZO JAMAKANGA
Printed circuit boards (PCBs) from electronic gadgets at the end of their useful life period are currently being dumped in landfills or incinerated, c
Oyuna Tsydenova, Magnus Bengtsson
This review paper summarizes the existing knowledge on the chemical hazards associated with recycling and other end-of-life treatment options of waste