Material recovery in waste-to-energy fly ash treatment

0576830 - ÚCHP 2024 RIV IT eng C - Conference Paper (international conference)
Šyc, Michal - Korotenko, Ekaterina - Jadrný, J. - Baloch, T. - Mašín, P.
Material recovery in waste-to-energy fly ash treatment.
Padova: EUROWASTE, 2023. In: Symposium Proceedings. Padova: EUROWASTE Srl, 2023, č. článku D08(1). ISBN 9788862650335. ISSN 2282-0027.
[International Symposium on Waste Management and Suustainable Landfilling SARDINIA 2023. Cagliari (IT), 09.10.2023-13.10.2023]
R&D Projects: GA TA ČR(CZ) SS02030008; GA TA ČR(CZ) FW03010439
Institutional support: RVO:67985858
Keywords : fly ash * gypsum * waste-to-energy
OECD category: Chemical process engineering

Fly ash and air pollution control residues, which are solid residues originating from waste to-energy plants, often possess hazardous properties. There are various methods available for mitigating these hazards and simultaneously recovering valuable components. Hydrometallurgical techniques, particularly for the recovery of salts and metals, are the most commonly employed. The presentation offers a comprehensive overview of results obtained through pilot and semi-pilot testing. These results pertain to an intricate approach aimed at maximizing the recovery of all components during the acid extraction of fly ash. Specifically, the presentation summarizes findings related to the removal of mercury from quench water, optimization of the acid extraction, cementation of heavy metals, precipitation of zinc, crystallization of salts, and precipitation of gypsum.
Permanent Link: https://hdl.handle.net/11104/0346226