The use of electrostatic techniques for the identification and sorting of waste packaging materials

Using this technique has resulted in: (a) the successful separation of plastics from non-plastics and (b) plastics separated into polypropylene (PP), polyethylene terephthalate (PET)/polystyrene (PS), polyvinyl chloride (PVC) and high-density polyethylene (HDPE) streams. The technique ideally lends itself to incorporation on an automated recycling line.