At the present time, the extraction process for this mixture is the following one. An overband is placed above the main conveyor belt. Scrap metal is attracted by the overband and it falls in a kind of funnel to get to another conveyor. At its end, it falls again on the ground. The issue of this specific material is that when it is extracted from the global treatment chain _ plastics, textiles, foam and fragments of wood, hooks metallic pieces are dug up too.