A rotating suction chamber apparatus for sorting a mixture of materials comprises a cylindrical drum with its upper end is at a higher elevation than its lower end. An upper housing connected to the upper end has a material intake for receiving the mixture of materials for introduction to the upper end. The mixture of materials includes a light fraction and a heavy fraction, and the upper housing has an outlet for the light fraction. A suction hood connected to the light fraction outlet includes a light separator shaft with a substantially vertical portion, and an air blower is adapted to create an airflow from the lower end, to the upper end, through the light fraction outlet and through the suction hood. A rotator rotates the drum about its longitudinal axis so that the heavy fraction is moved through the drum and falls out of the lower end.

A rotating suction chamber apparatus for sorting a mixture of materials comprises a cylindrical drum with its upper end is at a higher elevation than its lower end. An upper housing connected to the upper end has a material intake for receiving the mixture of materials for introduction to the upper end. The mixture of materials includes a light fraction and a heavy fraction, and the upper housing has an outlet for the light fraction. A suction hood connected to the light fraction outlet includes a light separator shaft with a substantially vertical portion, and an air blower is adapted to create an airflow from the lower end, to the upper end, through the light fraction outlet and through the suction hood. A rotator rotates the drum about its longitudinal axis so that the heavy fraction is moved through the drum and falls out of the lower end.

A separation method making it possible, from a mixture containing fibers and granules, to separate the fibers from the granules is provided. The method comprises a supply step during which the mixture is brought into a receptacle provided with a screen, a dissociation step which involves carrying out, simultaneously, an agitation sub-step in which mechanical mixing of the mixture contained in the receptacle is performed and a neutralization sub-step in which the mixture being mixed in the receptacle is exposed to bipolar charges in order to neutralize electrostatic charges of the fibers and the granules, followed by a screening step during which the mixture treated in accordance with the dissociation step is passed over the screen in order to retain in the receptacle a first product enriched in fibers while a second product enriched in granules is discharged through the screen.

A separation method making it possible, from a mixture containing fibers and granules, to separate the fibers from the granules is provided. The method comprises a supply step during which the mixture is brought into a receptacle provided with a screen, a dissociation step which involves carrying out, simultaneously, an agitation sub-step in which mechanical mixing of the mixture contained in the receptacle is performed and a neutralization sub-step in which the mixture being mixed in the receptacle is exposed to bipolar charges in order to neutralize electrostatic charges of the fibers and the granules, followed by a screening step during which the mixture treated in accordance with the dissociation step is passed over the screen in order to retain in the receptacle a first product enriched in fibers while a second product enriched in granules is discharged through the screen.