Recovery of copper from small grain sizes of municipal solid waste incineration bottom ash by means of density separation
- Small grain sizes of municipal solid waste incineration (MSWI) bottom ash (BA) contain elemental and chemically bonded metals in appreciable amounts, especially copper. As different copper species have in general a higher density compared to the prevalent minerals, processes for density separation seemed to be favorable for the recovery of copper. Investigations with a centrifugal classifier were therefore carried out with BA from MWSI which have been used for a few years as the covering material for a landfill. The results show an appreciable enrichment of the precious copper. The concentrates contained up to 60 mg/kg copper in the dry weight (DW) (in general about 30 – 40 mg/kg DW) with enrichment factors of around 20 and a copper recovery of up to 50 % (in general around 20 %). A test series in order to evaluate the potential benefit for sequential processing illustrate the low efficiency for a further processing of the tailings.
Autor*innen: | Olaf Holm, Franz-Georg SimonORCiD |
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Dokumenttyp: | Beitrag zu einem Tagungsband |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | SUM 2014 - 2nd Symposium on Urban Mining (Proceedings) |
Jahr der Erstveröffentlichung: | 2014 |
Herausgeber (Institution): | Eurowaste Srl |
Verlag: | CISA Publisher |
Verlagsort: | Padova, Italy |
Erste Seite: | 1 |
Letzte Seite: | 7 |
DDC-Klassifikation: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Sanitär- und Kommunaltechnik; Umwelttechnik |
Freie Schlagwörter: | Bottom ash (BA); Copper; Density separation; Municipal solid waste incineration (MSWI) |
Veranstaltung: | SUM 2014 - 2nd Symposium on Urban Mining |
Veranstaltungsort: | Bergamo, Italy |
Beginndatum der Veranstaltung: | 19.052014 |
Enddatum der Veranstaltung: | 21.05.2014 |
ISBN: | 9788862650311 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 09.09.2016 |
Referierte Publikation: | Nein |