Sewage sludge ashes - composition, mass flows, and recovery potential
- Sewage sludge ashes (SSA) represent a possible source of phosphorus (P) and technology metals. So far, the sole external source for P, that is indispensable for all animate beings, is rock phosphate, a finite resource. The EU depends completely on the import from possible politically instable regions. Furthermore, rock phosphate is often contaminated with heavy metals like Cd and U, leading to health and environmental hazards. P recovered from SSA might diminish these problems. SSA of German mono incineration facilities are analyzed for their elemental composition. More than 95% of the emerging SSA is monitored, enabling the determination of complete mass flows of the ashes and their components. Initial results indicate a P recovery potential of 16,000 t/a (11% of the annual P demands for fertilizer production). The concentrations of Cd and U in SSA are one to two Orders of magnitude lower than in rock phosphate and could help to reduce possible hazards.
MetadatenAutor*innen: | Oliver Krüger, Christian AdamORCiD |
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Dokumenttyp: | Beitrag zu einem Tagungsband |
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Veröffentlichungsform: | Graue Literatur |
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Sprache: | Englisch |
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Titel des übergeordneten Werkes (Englisch): | 14th International waste management and landfill symposium - Sardinia 2013 (Proceedings) |
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Jahr der Erstveröffentlichung: | 2013 |
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Verlag: | CISA Publisher |
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Erste Seite: | 1 |
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Letzte Seite: | 5 |
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Veranstaltung: | 14th International waste management and landfill symposium - Sardinia 2013 |
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Veranstaltungsort: | Cagliari, Italy |
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Beginndatum der Veranstaltung: | 30.09.2013 |
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Enddatum der Veranstaltung: | 04.10.2013 |
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Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
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Datum der Freischaltung: | 20.02.2016 |
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Referierte Publikation: | Nein |
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