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Gewählte Master / Diploma Thesis:

Sabrina Lichtnegger (2017): Aluminiumverbunde - Wieviel, Worin, Wohin? Eine Abschätzung des Aufkommens und Rückgewinnungspotenzials von Aluminium in Verbundverpackungen in Österreich.
Master / Diploma Thesis - Institut für Verfahrens- und Energietechnik (IVET), BOKU-Universität für Bodenkultur, pp 99. UB BOKU obvsg FullText

Data Source: ZID Abstracts
Abstract:
Due to the unique material properties of Aluminium, the metal is used for composite packaging. Within the present thesis, the use of aluminium in composite packaging in Austria has been estimated by an intensive literature research, qualitative expert interviews and a material analysis (ICP-OES) of selected packaging products. Furthermore, the material recycling potential of aluminium composites was analysed. The optical emission spectrometry of composite packaging in selected application areas devoted an average aluminium content of 0.17% for snack packages and 15% for coffee pouches. The yearly usage of aluminium in snack packaging is estimated to be 2 t, the one in coffee pouches 220 t and the one in beverage cartons 570 t in Austria. The estimation on the national level devoted an emergence of 1.800 ± 340t aluminium in composite packaging per year. Currently the material recycling potential of aluminium in composites is negligible in Austria. All composites are utilized thermal, whereby Aluminium recovery from the bottom ash is broadly not possible, due to high oxidation rates and small particle sizes of aluminium foils. However, there are technologies on a pilot scale to separate the laminate layers of composite packaging that enable the recycling of aluminium. Within the present thesis it could not been evaluated if the usage of such technologies is ecological and economical reasonable. In general the results of the analysis highlight that there is a future research need with respect to the usage of aluminium in composites, as well as in the field of aluminium recovery from the bottom ash in Austria. The recycling of aluminium composites is desirable for waste and resource related reasons. However, the database available at present does not allow to quantify which amounts of aluminium from composite packaging might be recovered if economic and ecological criteria are considered.

Beurteilende(r):
1.Mitwirkender: Pröll Tobias

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