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

Información del proyecto

Identificador del acuerdo de subvención: EVWA0001

Proyecto cerrado

Fecha de inicio 1 Mayo 1993

Fecha de finalización 30 Abril 1996

Financiado con arreglo a

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

Coste total Sin datos

Aportación de la UE Sin datos

Coordinado por

Katholieke Universiteit Nijmegen
Netherlands

Resultado final

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.