The sorting of used plastics is an ever-growing market field which is further pushed by new EU regulations in, e.g., car recycling.
These pure fractions can be generated from waste using modern sorting technologies based on specific mechanical, electrical and chemical material properties such as density, conductivity and melting point. The thermal recycling of plastics is no longer seasonable. More modern recycling techniques require pure fractions containing only a single variety of polymer. A large portion of the plastic waste contains black or multilayer materials that are not sortable with todays’ sorting technologies.
To overcome this challenge, three Fraunhofer institutes are working together to develop a new type of sorting system. As a first step, we have developed a frequency domain line-scan camera working in the terahertz range with frequencies below 300 GHz.
Since the entropy in terahertz signals below 300 GHz is not as high as needed for simple classification, more complex statistical pattern recognition methods are needed. The application of those methods to the problem of sorting black plastics as the second step in this joint project is presented in this paper. These methods have to be integrated into a real sorting system, which is the third part of our joint project. The modular approach gives the ability to integrate our sensors and algorithms into existing sorting systems.
Copyright: | © ANTS - Institut für anthropogene Stoffkreisläufe an der RWTH Aachen |
Quelle: | SBSC 2016 (Februar 2016) |
Seiten: | 10 |
Preis: | € 0,00 |
Autor: | Christian Brandt Michael Kieninger Christian Negara Robin Gruna Andries Küter |
Artikel nach Login kostenfrei anzeigen | |
Artikel weiterempfehlen | |
Artikel nach Login kommentieren |
Rechtliche und praktische Unsicherheiten bei der Durchführung des europäischen Klimaanpassungsrechts durch das Bundes- Klimaanpassungsgesetz (KAnG)
© Lexxion Verlagsgesellschaft mbH (6/2025)
In the context of the European Climate Law (EU) 2021/1119), the Governance Regulation (EU) 2018/1999 and the Nature Restoration Regulation (EU) 2024/1991, the KAnG came into force on July 1, 2024.
Transformatives Klimarecht: Raum, Zeit, Gesellschaft
© Lexxion Verlagsgesellschaft mbH (6/2025)
This article contends that climate law should be conceived as inherently transformative in a double sense. The law not only guides the necessary transformation of economy and society, but is itself undergoing transformation.
Maßnahmen zur Klimaanpassung sächsischer Talsperren
© Springer Vieweg | Springer Fachmedien Wiesbaden GmbH (5/2025)
Die Landestalsperrenverwaltung des Freistaates Sachsen (LTV) betreibt aktuell insgesamt 87 Stauanlagen, darunter 25 Trinkwassertalsperren. Der Stauanlagenbestand ist historisch gewachsen und wurde für unterschiedliche Zwecke errichtet.