Abstract: An apparatus for sorting material, includes a frame, at least one first shaft rotatably mounted onto the frame, and at least one second shaft rotatably mounted onto the frame in a substantially adjacent and parallel relationship with respect to the at least one first shaft. The first and second shafts define a conveying surface along which material to be sorted is intended to travel via a rotation of the shafts. At least one single disc is mounted in a substantially transverse relationship with respect to the at least one first shaft. At least one compound disc is mounted in a substantially transverse relationship with respect to the at least one second shaft, each compound disc having a main disc and an associated secondary disc, each main disc having an outside perimeter greater than that of the associated secondary disc, each secondary disc being in alignment with the at least one single disc of an adjacent first shaft.

Abstract: A system and method sorts bulk material containing lightweight components and heavier components, by separating the lightweight components from the heavier components. The method includes the steps of a) conveying the bulk material to be sorted, and releasing it through a corresponding outlet along a given trajectory; and b) generating an airflow and projecting said airflow adjacent to the outlet so that the airflow intersects the given trajectory of the bulk material, and draws along with it the lightweight material via a Venturi effect, thereby separating the lightweight components from the heavier components. This enables namely to easily, quickly and inexpensively sort out fairly lightweight materials, from heavier materials, at a substantial high throughput.