High voltage selective fragmentation on Swedish mineral fraction of incineration bottom ash (MIBA) - An exploratory study on metal and material recovery
Copyright © 2025 The Authors. Published by Elsevier Ltd.. All rights reserved.
| Veröffentlicht in: | Waste management (New York, N.Y.). - 1999. - 194(2025) vom: 15. Feb., Seite 270-281 |
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| 1. Verfasser: | |
| Weitere Verfasser: | , , , , , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2025
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| Zugriff auf das übergeordnete Werk: | Waste management (New York, N.Y.) |
| Schlagworte: | Journal Article High voltage pulse power High voltage selective fragmentation Incineration bottom ash Leaching Metal recovery Waste-to-energy Coal Ash Metals Minerals |
| Zusammenfassung: | Copyright © 2025 The Authors. Published by Elsevier Ltd.. All rights reserved. Waste-to-Energy (WtE) generates circa 1 Mt/y of Mineral fraction of Incineration Bottom Ash (MIBA) in Sweden, often used as construction material for landfills. Upcoming European Commission directives will limit landfilling and the demand for MIBA for landfill construction is predicted to decrease. Therefore, alternative utilisations of MIBA are required. High Voltage Selective Fragmentation (HVSF) has been utilised in Switzerland to improve recovery from WtE bottom ash, yielding fractions of higher homogeneity: metals, minerals, iron oxide (FeO), and a sorting residue. Samples from two Swedish WtE plants were treated to test the effectiveness of HVSF on Swedish MIBA. Applying HVSF to MIBA resulted in additional metal extraction of 2.2% and 1.2% for each sample, consisting of 1.2% and 0.6% ferrous metals and 1.0% and 0.6% non-ferrous metals, respectively. The minerals, FeO, and sorting residue were analysed for total elemental content and leaching. Potential utilisation in the clinker and brick industry is identified for FeO, while the mineral fraction exceeded guideline values for unlimited use in Sweden. The results indicate more research is required on how value recovery of MIBA can be increased to better align with circular principles, particularly concerning thechemical properties of the recovered fractions and appropriate legislation for use |
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| Beschreibung: | Date Completed 02.05.2025 Date Revised 02.05.2025 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1879-2456 |
| DOI: | 10.1016/j.wasman.2025.01.015 |