Anmelden

Open Access

  • Startseite
  • Suchen
  • Browsen
  • Veröffentlichen
  • Hilfe
  • Organisationseinheit der BAM

4 Material und Umwelt

  • 4.0 Abteilungsleitung und andere (167) RSS-Feed abonnieren
  • 4.1 Biologische Materialschädigung und Referenzorganismen (330) RSS-Feed abonnieren
  • 4.2 Materialien und Luftschadstoffe (279) RSS-Feed abonnieren
  • 4.3 Schadstofftransfer und Umwelttechnologien (262) RSS-Feed abonnieren
  • 4.4 Thermochemische Reststoffbehandlung und Wertstoffrückgewinnung (271) RSS-Feed abonnieren
  • 4.5 Kunst- und Kulturgutanalyse (209) RSS-Feed abonnieren

Filtern

Autor

  • Krüger, Oliver (2) (entfernen)

Erscheinungsjahr

  • 2015 (1)
  • 2014 (1)

Dokumenttyp

  • Beitrag zu einem Tagungsband (2) (entfernen)

Schlagworte

  • Sewage sludge ash (2) (entfernen)

Organisationseinheit der BAM

  • 4 Material und Umwelt (2)
  • 4.4 Thermochemische Reststoffbehandlung und Wertstoffrückgewinnung (2)

2 Treffer

  • 1 bis 2
  • CSV
  • RIS
  • 10
  • 20
  • 50
  • 100

Sortieren nach

  • Jahr
  • Jahr
  • Titel
  • Titel
  • Autor
  • Autor
Phosphorus flows in German sewage sludge ashes and potential recovery technologies (2015)
Adam, Christian ; Krüger, Oliver ; Herzel, Hannes
Phosphorus (P) is essential for all forms of life and cannot be substituted. It is one of the macro nutrients applied in form of mineral or organic fertilizers in agricultural crop production. Mineral P fertilizers are generally based on phosphate rock, a limited resource. Western Europe completely depends on imports as it has no own relevant phosphate mines. The most abundant phosphate deposits are located only in a few countries such as Morocco, China, South Africa and the United States of America. Furthermore, phosphate rock and as a consequence mineral P fertilizers are often contaminated with the toxic elements cadmium and uranium. In Order to substitute phosphate rock P-bearing waste streams are investigated for their potential to be recyded as fertilizers. Wastewater is one of the important P-bearing waste streams that were in the focus of research in the last 10 years. German wastewater is e.g. a carrier of approx. 70,000 t of phosphorus per year.
Sewage sludge ashes - waste or valuable resource (2014)
Krüger, Oliver ; Adam, Christian
There is a growing concern of the direct use of contaminated sewage sludge in agriculture due possible environmental and health hazards. Thus, incineration of the sludge and thus increasing amounts of sewage sludge ashes (SSA) are to be expected in the future. SSA contains considerable amounts of phosphorus (P) and technology metals that might be recovered as secondary raw materials. Since the EU for instance depends completely on the import of rock phosphate needed for fertilizer production, alternative sources for P are in order. 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. To determine the possible recovery potential of P and technology metals from SSA, we conducted a survey of German mono incineration facilities and analyzed the respective SSA for their elemental composition. More than 95% of the emerging SSA was monitored. Results indicate a P recovery potential of 18,000 t/a (up to 13% 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.
  • 1 bis 2

OPUS4 Logo

  • Kontakt
  • Impressum
  • Sitelinks