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Project ASHES – nutrient recycling from the thermo-chemical processing of waste bagasse and straw

  • Recycling of nutrients from residues of thermo-chemical processing of bagasse/sugar cane straw. The project ASHES is a German-Brazilian collaborative research project and is focused on the recycling of nutrients from residues of thermo-chemical processing of by-products of sugar cane industry (bagasse/straw) in Brazil. The challenge of the project is to increase the energy efficiency of thermal conversion (combustion/gasification) and to enable the recycling of process ashes to close material cycles by gaining adequate and competitive fertilizers as well as (functional) fillers in (bio-)polymer compounds. For this purpose, phosphorus salts are recovered from bagasse, straw, filtercake and vinasse with leaching and precipitation. The AshDec process was used to increase the availability of phosphorus for plant uptake in the ashes. Additives like sewage sludge and chicken manure were also tested. Different fertilizer formulations are granulated/pelletized and tested regarding theirRecycling of nutrients from residues of thermo-chemical processing of bagasse/sugar cane straw. The project ASHES is a German-Brazilian collaborative research project and is focused on the recycling of nutrients from residues of thermo-chemical processing of by-products of sugar cane industry (bagasse/straw) in Brazil. The challenge of the project is to increase the energy efficiency of thermal conversion (combustion/gasification) and to enable the recycling of process ashes to close material cycles by gaining adequate and competitive fertilizers as well as (functional) fillers in (bio-)polymer compounds. For this purpose, phosphorus salts are recovered from bagasse, straw, filtercake and vinasse with leaching and precipitation. The AshDec process was used to increase the availability of phosphorus for plant uptake in the ashes. Additives like sewage sludge and chicken manure were also tested. Different fertilizer formulations are granulated/pelletized and tested regarding their storage/handling characteristics. The fertilizing effects are evaluated in plant growth tests and compared with common extraction methods and the new promising diffusive gradients in thin films (DGT)-method. The results of the agronomic investigation of various ashes based products should provide targeted and integrated recommendations for the thermal conversion of bagasse/straw to secondary fertilizers in line with the so-called Next Generation fertilizer strategy. ASHES-partners are Fraunhofer UMSICHT (coordinator), Karlsruhe Institute of Technology (KIT), Bundesanstalt für Materialforschung und -prüfung (BAM), Fraunhofer IGB, Forschungszentrum Jülich (FZJ), CUTEC Institute, the Brazilian Center for Research in Energy and Materials (CNPEM), Federal Institute of Goiás (IFG), Laboratório Nacional Agropecuario (LANAGRO) and the Universidade Federal de Goiás (UFG), as well as the companies Tecnaro and Outotec.zeige mehrzeige weniger

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  • ASHES_BAM_Basel_October_final.pdf
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Metadaten
Autor*innen:Hannes Herzel
Dokumenttyp:Posterpräsentation
Veröffentlichungsform:Präsentation
Sprache:Englisch
Jahr der Erstveröffentlichung:2017
DDC-Klassifikation:Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Sanitär- und Kommunaltechnik; Umwelttechnik
Freie Schlagwörter:AshDec; Bagasse; Phosphorus; Recycling; Thermochemical
Veranstaltung:European nutrient event
Veranstaltungsort:Basel, Switzerland
Beginndatum der Veranstaltung:18.10.2017
Enddatum der Veranstaltung:19.10.2017
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:06.11.2017
Referierte Publikation:Nein
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