Resource recovery from urban stock, the example of cadmium and tellurium from thin film module recycling
- Raw material supply is essential for all industrial activities. The use of secondary raw material gains more importance since ore grade in primary production is decreasing. Meanwhile urban stock contains considerable amounts of various elements. Photovoltaic (PV) generating systems are part of the urban stock and recycling technologies for PV thin film modules with CdTe as semiconductor are needed because cadmium could cause hazardous environmental impact and tellurium is a scarce element where future supply might be constrained. The paper describes a sequence of mechanical processing techniques for end-of-life PV thin film modules consisting of sandblasting and flotation. Separation of the semiconductor material from the glass surface was possible, however, enrichment and yield of valuables in the flotation step were non-satisfying. Nevertheless, recovery of valuable metals from urban stock is a viable method for the extension of the availability of limited natural resources.
Autor*innen: | Franz-Georg SimonORCiD, Olaf Holm, Wolfgang Berger |
---|---|
Dokumenttyp: | Zeitschriftenartikel |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Waste Management |
Jahr der Erstveröffentlichung: | 2013 |
Verlag: | Pergamon Press |
Verlagsort: | New York, NY |
Jahrgang/Band: | 33 |
Ausgabe/Heft: | 4 |
Erste Seite: | 942 |
Letzte Seite: | 947 |
Freie Schlagwörter: | Cadmium; Flotation; Sand blasting; Tellurium; Thin film technology |
DOI: | 10.1016/j.wasman.2012.12.025 |
ISSN: | 0956-053X |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 20.02.2016 |
Referierte Publikation: | Ja |
Datum der Eintragung als referierte Publikation: | 24.10.2013 |