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Tracer Based Sorting - Innovative Sorting Options for Post Consumer Products

Tracer Based Sorting is an innovative approach for waste Management enabling material or product sorting regardless of their physical properties. The technology is based on applying inorganic marker substances in ppm concentrations in or on the objects to be sorted. These substances can later be detected in the recycling process, serving either to remove contaminants or to recover valuable materials from the waste stream. Five German companies along with two universities and one associated networking partner are working on the pilot development of Tracer Based Sorting for plastic packaging recycling in a collaborative research Project.

Tackling plastic waste from packaging in Germany has become an important topic in recent decades. Starting in 1991 with a mere 1.6 million Mg, in 2013 already 2.8 million Mg or 77 % of plastic packaging waste was collected, although in the same period, the mean mass of plastic packaging dropped by 26 %. Future steps will be the development from a packaging to a secondary raw materials collection system and increased recovery rates: German packaging law requires 63 % (w/w) of all plastic packaging to be recycled by 2020. As the current recovery rate covers both material and energetic recycling, it reaches 99.6 % and this exceeds the current requirement of 60 %, but material recycling still needs to be improved. Out of these 99.6 % merely 41 % are material recycling, 57% energetic recycling and 1 % feedstock recycling. Thus the materials recycling quota of 36 % currently required by the German packaging ordinance is clearly met, but for meeting the requirements for 2020 and onward, actions need to be taken.

Copyright:	© Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben
Quelle:	Recy & Depotech 2018 (November 2018)
Seiten:	6
Preis:	€ 3,00
Autor:	Prof. Dr.-Ing. Jörg Woidasky Dr.-Ing. Michael Heyde Immo Sander Jochen Mößlein Prof. Dr. Bryce Richards
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