ILIADE

Integrated Light and Image analysis for Alloys Detection

Conception of an integrated system that would characterize the content of fine shredding residues by analysis of particles morphology and spectral reflectance

Scenery

Responsible person : Pierre Barnabé

Supervisors : Pr. E. Pirard, Godefroid Dislaire

Institutionnal partner : CRM Group, CSL, HEPHS

Industrial partner : Comet Traitement, Occhio s.a.

Sponsor : Région Wallonne

Budget : 600k€

Context

Since 2000, an European directive states that end-of-life vehicles recycling rate has to reach 95% (with a maximum fraction of 10% energetic valorization) in the year 2015. Despite the fact that obvious progresses for middle sized and large particles characterization and sorting have been made recently, monitoring of fine residues remains a problem for the full process quality control (only hand-picking currently allows the estimation of the content of those residues).

Consequently, in order to provide an automated analysis tool for characterization of fine shredding residues of the recycling process of end-of-life vehicles and electronic and electric equipment wastes, the Iliade project was born, with the ambition of coupling particles morphology analysis with visible and NIR reflectance spectra to discriminate and quantify elements of the recycling residues.

The project started in January 2013 in the context of Walloon Region call for project ‘WBGreen’, launched in 2012. Industrial sponsors are Comet Treatments and Occhio. Academic partners are HEPHS (Haute Ecole Paul Henri Spaak), Centre Spatial de Liège (CSL) and Centre de recherche métallurgique (CRM).

Objectives

The aim of the project is the conception of an integrated system that would characterize the content of fine shredding residues by analysis of particles morphology and spectral reflectance (in visible and infrared wavelengths). In order to be able to distinguish particles with the optical devices, a system of mechanical separation will be developped. The project focus on the development of the knowledge of hyperspectral imaging for the applied domains of recycling and mineral processing.

Equipment

In order to reach objectives of Iliade project, it is needed to be able to collect spectral information of particles on a sufficiently large wavelength bandwidth; consequently, acquisition of an infrared imaging spectrometer (1000-2500nm) will be done. Additionally, a spectrograph for 400-1000nm interval and an RGB camera will be used for visible and SWIR part of the spectra.

In order to provide a validation tool, and, if necessary, to complete the characterization when hyperspectral imaging reaches his limitations, XRF and LIBS technologies, with the expertise of CRM, will be used.