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Gypsum plasterboard recycling - a sustainable approach

  • Gypsum (calcium sulfate dihydrate) has excellent building material properties and has been widely used in constructions in the last decades in many countries. Accordingly, an increase of waste gypsum in C&D waste is expected in the upcoming years. On one hand, sulfates are unwanted in other secondary building materials (particularly in recycled concrete aggregates) and should be minimized for quality reasons. On the other hand, used gypsum from CDW can also be used in gypsum production if the high quality requirements for the recycled gypsum – especially regarding the sorting accuracy - are met. A large percentage of the gypsum from buildings was installed as gypsum plasterboards in interior fittings so far. Gypsum plasterboards are comparatively simple to remove and to separate during selective dismantling. Therefore, a high sorting purity can be achieved. In addition, techniques for the recycling of gypsum plasterboards already exist and high quality standards can be achieved. Also,Gypsum (calcium sulfate dihydrate) has excellent building material properties and has been widely used in constructions in the last decades in many countries. Accordingly, an increase of waste gypsum in C&D waste is expected in the upcoming years. On one hand, sulfates are unwanted in other secondary building materials (particularly in recycled concrete aggregates) and should be minimized for quality reasons. On the other hand, used gypsum from CDW can also be used in gypsum production if the high quality requirements for the recycled gypsum – especially regarding the sorting accuracy - are met. A large percentage of the gypsum from buildings was installed as gypsum plasterboards in interior fittings so far. Gypsum plasterboards are comparatively simple to remove and to separate during selective dismantling. Therefore, a high sorting purity can be achieved. In addition, techniques for the recycling of gypsum plasterboards already exist and high quality standards can be achieved. Also, the reuse in gypsum production has been improved in the last decade. Furthermore, an environmental evaluation of the whole process of gypsum plasterboard recycling and reuse showed that this approach can be environmentally advantageous. Therefore, a closed-loop recycling of gypsum plasterboards is feasible. This poster will show the development of gypsum consumption in different countries as well as a prognosis for the upcoming of gypsum in CDW in the future decades in Germany. Furthermore, a simplified scheme of the recycling process and selected results from an environmental evaluation will be presented.zeige mehrzeige weniger

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  • 2020_Minea_Poster_Weimann_Adam_gypsum.pdf
    eng

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Metadaten
Autor*innen:Karin Weimann
Koautor*innen:Christian Adam
Dokumenttyp:Posterpräsentation
Veröffentlichungsform:Präsentation
Sprache:Englisch
Jahr der Erstveröffentlichung:2020
Organisationseinheit der BAM:4 Material und Umwelt
4 Material und Umwelt / 4.4 Thermochemische Reststoffbehandlung und Wertstoffrückgewinnung
DDC-Klassifikation:Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Sanitär- und Kommunaltechnik; Umwelttechnik
Freie Schlagwörter:Gypsum recycling; LCA
Themenfelder/Aktivitätsfelder der BAM:Umwelt
Umwelt / Circular Economy
Veranstaltung:Conference on Mining the European Anthroposphere: Poster session
Veranstaltungsort:Bologna, Italy
Beginndatum der Veranstaltung:20.02.2020
Enddatum der Veranstaltung:21.02.2020
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:19.10.2020
Referierte Publikation:Nein
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