Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 531443
Title Efficiency of recycling post-consumer plastic packages
Author(s) Velzen, E.U.T. van; Jansen, M.; Brouwer, M.T.; Feil, A.; Molenveld, K.; Pretz, Th.
Source In: Proceedings of PPS 2016. - American Institute of Physics Inc. - ISBN 9780735416062
Event 32nd International Conference of the Polymer Processing Society, PPS 2016, Lyon, 2016-07-25/2016-07-29
DOI http://dx.doi.org/10.1063/1.5016785
Department(s) FBR Sustainable Chemistry & Technology
FBR Supply Chain & Information Management
Publication type Contribution in proceedings
Publication year 2017
Keyword(s) post-consumer plastic packaging waste - Recycling - washed milled goods - yields
Abstract The recycling of packaging waste is an important part of the EU circular economy package, with a political focus on raising the recycling targets for post-consumer plastic packaging waste (PPW). The recycling of PPW involves at least three steps; collection, sorting and mechanical recycling. In contrast to the first two steps, mechanical recycling is poorly documented, as it is considered a free market activity. In order to provide a complete chain description the mechanical recycling yields were determined. The recovery of mass was determined for the main plastic sorting products from both major collection systems: separate collection (SC) and mechanical recovery (MR) from municipal solid waste. This technical assessment was conducted with a laboratory set-up for a standard mechanical recycling process. This analysis showed that there is a substantial sample-to-sample variation in polymeric composition between similar feedstocks and this variation is also observed in recovered masses. Next, the mechanical recycling of polyethylene feedstocks was studied more in depth. Six PE feedstocks with a gradual increasing level of complexity (from only transparent PE bottle bodies to the complete PE sorting product according to DKR 329), were prepared and mechanical recycled with the laboratory set-up. Since the polymeric composition of both the six feedstocks and the six floating milled goods were known, the net PE recycling yield could be calculated. The net PE yields are close to 100% for such a standard recycling process. Additionally, the compositional analysis revealed that contaminants are only partially removed by the standard mechanical recycling process.
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