@techreport{SchlummerWagenknechtMarkowski, author = {Schlummer, Martin and Wagenknecht, Udo and Markowski, Jens}, title = {Verkehrsf{\"a}hige Polymer-Recyclate aus der Elektro(nik)altger{\"a}teverwertung durch spektroskopische Sortierung und dichtebasierte St{\"o}rstoffabtrennung}, publisher = {Fraunhofer IVV}, address = {Freising}, pages = {71}, abstract = {Schlussbericht Projekt SpectroDense}, language = {de} } @misc{SchlummerArendsMaeureretal., author = {Schlummer, Martin and Arends, Dagmar and M{\"a}urer, Andreas and Markowski, Jens and Wagenknecht, Udo}, title = {Characterisation and materials flow management for waste electrical and electronic equipment plastics from German dismantling centres}, series = {Waste Management \& Research}, volume = {33}, journal = {Waste Management \& Research}, number = {9}, issn = {1096-3669}, doi = {10.1177/0734242x15588585}, pages = {775 -- 784}, abstract = {Waste electrical and electronic equipment is a complex waste stream and treatment options that work for one waste category or product may not be appropriate for others. A comprehensive case study has been performed for plastic-rich fractions that are treated in German dismantling centres. Plastics from TVs, monitors and printers and small household appliances have been characterised extensively. Based on the characterisation results, state-of-the-art treatment technologies have been combined to design an optimised recycling and upgrade process for each input fraction. High-impact polystyrene from TV casings that complies with the European directive on the restriction of hazardous substances (RoHS) was produced by applying continuous density separation with yields of about 60\%. Valuable acrylonitrile butadiene styrene/ polycarbonate can be extracted from monitor and printer casings by near- infrared-based sorting. Polyolefins and/or a halogen-free fraction of mixed styrenics can be sorted out by density separation from monitors and printers and small household appliances. Emerging separation technologies are discussed to improve recycling results.}, language = {en} }