| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
REWAS 2025: Sustainable Practices in Strategic and Critical Raw Materials: Exploring Supply Chain Resilience and Recycling Innovations
|
| Presentation Title |
Comparative Study of Different Acid Reagents for Metal Recovery from Municipal Solid Waste Incineration Fly Ash |
| Author(s) |
Edzhe Soylu, Linus Meistad, Elif Emil Kaya, Kai Erik Ekstrøm, Inge Johansson, Gabriella Tranell |
| On-Site Speaker (Planned) |
Edzhe Soylu |
| Abstract Scope |
Valorization of municipal solid waste incineration fly ash presents potential opportunities as a source valuable metals and minerals. The current research investigates the use of various acids, including acetic, citric, oxalic, methanesulfonic acid (MSA), and HCl (as a benchmark), for extracting zinc (Zn), lead (Pb), and copper (Cu) from two different types of municipal solid waste incineration fly ash. Results indicate that extraction rates can reach up to 99% for Cu, 90% for Zn, and 100% for Pb. Citric acid was the most effective organic acid, particularly at higher temperatures and longer leaching times. Hydrochloric acid provided the fastest and most complete extraction, achieving near-complete metal extraction within 0.5 hours. The use of methanesulfonic acid combined with hydrogen peroxide proved effective for Cu and Zn but was less consistent for Pb. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Recycling and Secondary Recovery, Hydrometallurgy, Process Technology |