Post consumer plastics recycling from waste streams : on-line pick-up, on-line analysis, on-line sorting

Projektinformationen

ID Finanzhilfevereinbarung: EVWA0001

Startdatum 1 Mai 1993

Enddatum 30 April 1996

Finanziert unter

• Specific research and technological development programme (EEC) in the field of the environment, 1990-1994

Gesamtkosten € 0,00

EU-Beitrag Keine Daten

Koordiniert durch

Katholieke Universiteit Nijmegen
Netherlands

Leistungen

Post consumer plastics recycling from waste streams : on-line pick-up, on-line analysis, on-line sorting

Summary: The design for the presorter was based on the spectroscopical observation that plastics show characteristics reflectance peaks in the optical near infrared reflectance (NIR) wavelength region. Typical nonplastics such as metals, wood, paper, ceramics and glass show less characteristical spectral patterns. A presorter has been designed under laboratory conditions. An infrared camera watches via an infrared mirror and monochromator, a single illuminated waste sample. A sequence of digital infrared images on several typical wave length is taken from this object and read into a computer workstation. This data is preprocessed and combined image processing and classification is applied in order to identify the class and size of each object. This data can be used for further processing / sorting of the waste stream.