To provide a shredder dust electrostatic separation apparatus and method which enables effective utilization of resources by appropriately separating and recovering shredder dust comprising various kinds of crushed pieces.

The shredder dust electrostatic separation apparatus separates and recovers a large number of pieces constituting shredder dust by electrostatic force. The apparatus is provided with a rotating drum 2 made of a conductive material which receives the supplied shredder dust and, at the same time, allows a negative or positive voltage to be applied thereon. The apparatus further is provided with a discharge wire 15 strung along the side line of the rotating drum 2 on the opposite position to the rotating drum 2. Therein, a negative and positive voltage is applied to cause a discharge between the discharge wire 15 and the rotating drum 2 and the various kinds of pieces in the shredder dust are charged into the opposite polarity to that of the rotating drum 2 by the action of charged particles generated by the discharge and are attracted to the rotating drum 2. In the attracted state of the pieces, the charged particles on the pieces are allowed to move to the rotating drum 2 at each speed in accordance with the conductivity of the pieces and, thereby, are differentiated in attraction forces to the rotating drum 2 and the pieces can be separated and recovered.