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Automation of Plastic Recycling – A case study
Linköping University, Department of Management and Engineering, Production Engineering. Linköping University, The Institute of Technology.
Linköping University, Department of Management and Engineering, Assembly technology. Linköping University, The Institute of Technology. (Sustainable Production)ORCID iD: 0000-0003-2552-3636
2009 (English)In: Proceedings of EcoDesign 2009, Sapporo, Japan, Springer, 2009, 935-940 p.Conference paper (Refereed)
Abstract [en]

Plastic recycling is an increasingly important issue intoday’s society. The number of plastics and theirvariation with additives has increased lately, affecting inturn the possibilities for plastic material recycling.However, trends in e.g. Japan show a reduction in thenumber of plastics used in e.g. household appliances.This reduction has been put into force in order to easeplastic recycling for those kinds of products.In Sweden, more efforts are put on collecting plasticfor material recycling. The intention for doing this is tohave more plastic material recycled rather thanincinerated and energy recovered. This paper deals witha conceptual investigation and development of anautomatic plastic recycling plant in Sweden. In order toreach a recycling plant that fulfills required technical andeconomic specifications, a large investigation of existingtechniques was performed. This investigation revealedmany techniques described in research, but also whichtechniques that were used by recycling industry today.The results of these studies became a conceptual andpotential well-functioning material recycling plant forplastics which is fully automatic. However, the focus ofthis development has been to sort out and materialrecycle the most common plastics, namely polyetene(LDPE and HDPE), polypropylene (PP), polyethylene(PET), polyvinyl chloride (PVC) and polystyrene (PS)whereas the other plastics have been sorted out forenergy recovery. Having these delimitations, a goodrecycling process plant can be achieved.

Place, publisher, year, edition, pages
Springer, 2009. 935-940 p.
Keyword [en]
plastic, recycling, automation, Sweden, material recycling.
National Category
Production Engineering, Human Work Science and Ergonomics
URN: urn:nbn:se:liu:diva-63006ISBN: 978-4-88898-192-7OAI: diva2:375723
6th International Symposium on Environmentally Conscious Design and Inverse Manufacturing, December 7-9, Sapporo, Japan
Available from: 2010-12-08 Created: 2010-12-08 Last updated: 2016-04-12
In thesis
1. Automation in the Recycling Industry: Recycling of Plastic and Large Liquid Crystal Displays
Open this publication in new window or tab >>Automation in the Recycling Industry: Recycling of Plastic and Large Liquid Crystal Displays
2013 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

In a world of growing population and increasing prosperity, the demand for new high-technology products is increasing together with the demand for rawmaterials. To be able to deal with the demand for new raw materials and the increasing amount of waste, the recycling industry needs to prepare itself to cope with these changes. If the waste can become the new raw materials, then the recycling industry has a bright future. The implementation of new ways to recycle products can be the solution to succeeding in this challenge.

The objective of this research is to investigate, from a technical perspective, automation in the recycling industry. More specifically, the objective is to identify problems and solutions in the recycling of plastics and large liquid crystal displays in order to better cope with current recycling requirements.

This research was inspired by the research methodologies of industry-aslaboratory, action research, experimental research and two concept development methods.

The results related to the recycling of plastics come from a theoretical investigation of the possibilities for a plastic sorting facility. The investigation resulted in two concepts for recycling systems, implementable with today’s stateof-the-art technology and a more futuristic concept for sorting and separating the different plastics of interest. The systems are designed with standardised processes and are arranged in a flexible way to be able to manage with current industrial requirements.

The results related to large liquid crystal displays include a clarification of the requirements for an automatic recycling plant, concept generation, and practical testing of different technologies. Two preferred processes for dismantle large liquid crystal displays are the circle saw and band saw. Additional results are the semi-automatic process structure to manage with current industrial requirements for large liquid crystal displays.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2013. 80 p.
Linköping Studies in Science and Technology. Thesis, ISSN 0280-7971 ; 1583
National Category
Engineering and Technology
urn:nbn:se:liu:diva-90503 (URN)LIU-TEK-LIC-2013:17 (Local ID)978-91-7519-659-6 (ISBN)LIU-TEK-LIC-2013:17 (Archive number)LIU-TEK-LIC-2013:17 (OAI)
2013-05-03, A30, A-huset, Campus Valla, Linköpings universitet, Linköping, 10:15 (English)
Available from: 2013-03-28 Created: 2013-03-28 Last updated: 2016-09-26Bibliographically approved

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