Title:
Biomass and PAN-based Activated Carbons for Copper Removal from Waste Printed Circuit Boards
Author(s):
Rahimi, V., Gómez-Díaz, D., Freire, M.S., Lazzari, M., González-Álvarez, J.
Document(s):
Paper
Poster
Abstract:
The recovery of copper from waste printed circuit boards with the highest concentrations presents a considerable challenge for the advancement of recycling process. Therefore, this work is focused on the fabrication of activated carbons from olive stones and almond shells as cheap biomass wastes using KOH as activating agent and activated carbons from polyacrylonitrile (PAN) using KOH and sulfur with different carbon/KOH and carbon/sulfur ratios in order to analyze their applicability for copper adsorption. The findings indicated that activated carbons produced from biomass sources (olive stones and almond shells) can adsorb a notably greater quantity of copper compared to carbons made from PAN. Moreover, no significant differences were found between the activated carbons fabricated from olive stones with a carbon/KOH ratio of 1:2 (OSAC1) and 1:4 w/w (OSAC2) and activated carbon fabricated from almond shells with a carbon/KOH ratio of 1:2 w/w (ASAC1), and thus, they can be regarded as more effective adsorbents for copper adsorption under the conditions studied in this research.
Keywords:
activated carbon, biomass waste, polyacrylonitrile, copper adsorption
Topic:
Biomass Conversion to Bio-based Products and Chemicals
Subtopic:
Processes for bio-based chemicals and materials
Event:
32nd European Biomass Conference and Exhibition
Session:
6BV.10.13
Pages:
836 - 839
ISBN:
978-88-89407-24-0
Paper DOI:
10.5071/32ndEUBCE2024-6BV.10.13
Price:
FREE
