Abstract: An apparatus for processing wet aggregate material includes a trough mounted at an inclined angle and a pair of parallel shafts being rotatably mounted within the trough. Each shaft has a plurality of agled blades mounted thereon so that the blades carry aggregate material within the trough towards an upper end of the trough when the shafts are rotated. At least one weir is provided in a side wall of the trough adjacent a lower end thereof, through which excess water and any floating trash within the trough may pass. Fluid outlets provided in the trough communicate with a fluid supply such that fluid exiting from the fluid outlets creates an upward flow in the trough pushing particles of light material, organics and floatables to the top surface of the water to pass out of the trough via the at least one weir.