Optimization of a selective fragmentation process for the improvement of copper recovery in the incineration bottom ash fine fraction

0576832 - ÚCHP 2024 RIV IT eng C - Konferenční příspěvek (zahraniční konf.)
Muñiz Sierra, Hector - Šyc, Michal - Fuertes, F.C.M.
Optimization of a selective fragmentation process for the improvement of copper recovery in the incineration bottom ash fine fraction.
Padova: EUROWASTE, 2023. In: Symposium Proceedings. Padova: EUROWASTE Srl, 2023, č. článku D09(4). ISBN 9788862650335. ISSN 2282-0027.
[International Symposium on Waste Management and Suustainable Landfilling SARDINIA 2023. Cagliari (IT), 09.10.2023-13.10.2023]
Grant CEP: GA TA ČR(CZ) SS02030008; GA MŠMT(CZ) EF16_026/0008413
Institucionální podpora: RVO:67985858
Klíčová slova: incineration bottom ash * copper * liberation process
Obor OECD: Chemical process engineering

Municipal solid waste incineration (MSWI) has proven to be a suitable technology for the management of the municipal solid waste (MSW). Moreover, the incineration bottom ash (IBA), a by product of the incineration process, has also been proven as a secondary source of valuable elements such as copper. This study proposes the development and optimization of a liberation treatment based on the combination of magnetic and milling processes to improve the quality of the concentrate product obtained by a wet shaking table treatment of the fraction between 1 to 2 mm fraction. The results showed that there was no significant increase in the copper grade of the dense non-magnetic product after the
proposed liberation treatment, but it was possible to recover a fraction of the embedded copper after the liberation treatment of the magnetic product. The best results were obtained by using a 200 micronssieve. In addition, the milling time resulted in a relevant parameter due to its high energy consumption.
Trvalý link: https://hdl.handle.net/11104/0346228