Spettroscopia Digitale di Immagine Applicata alla Caratterizzazione di Prodotti Particolati di Rifiuto

The application of hyperspectral imaging technique to the characterization of solid waste particles has been investigated. In particular, the study was addressed to explore the possibility offered by "real time imaging based spectroscopy" in the field of solid waste recycling. Different waste materials characteristics can be detected analyzing their surface spectral response when properly energized by a suitable source. The proposed approach can be profitably applied to develop specific sorting actions addressed to recognize and separate different materials and/or to develop innovative control strategies finalized to evaluate the performance of a separation equipment and/or of a processing stage. Selected case studies related to different solid waste recycling sectors, in which the application of hyperspectral imaging can be profitably utilized, are described: glass recycling in respect of ceramic glass identification and fluff resulting from car dismantling in respect of finer fractions components identification.