Filtern
Erscheinungsjahr
- 2014 (6) (entfernen)
Dokumenttyp
- Vortrag (3)
- Posterpräsentation (2)
- Beitrag zu einem Tagungsband (1)
Referierte Publikation
- nein (6)
Schlagworte
Eingeladener Vortrag
- nein (3)
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.