A classifier device for separating heavy materials from a stream of water and lighter materials includes an upper deck above lower deck, each deck having entrance and exit sides. The exit side of the lower deck terminates in a plurality of apertures. An exit plate is disposed adjacent the exit side of the upper deck and elevated relative thereto. A trap compartment is disposed below the exit plate and receives a removable trap that has an open top side and a plurality of pipes that each have at least one fluidizing aperture and that are aligned with one of the apertures of the lower deck. A classification plate is included between the exit side of the upper deck and the exit plate for directing the larger light materials up and over the exit plate back into the stream of water. Smaller materials drop through the classification plate into the trap.

A classifier device for separating heavy materials from a stream of water and lighter materials includes an upper deck above lower deck, each deck having entrance and exit sides. The exit side of the lower deck terminates in a plurality of apertures. An exit plate is disposed adjacent the exit side of the upper deck and elevated relative thereto. A trap compartment is disposed below the exit plate and receives a removable trap that has an open top side and a plurality of pipes that each have at least one fluidizing aperture and that are aligned with one of the apertures of the lower deck. A classification plate is included between the exit side of the upper deck and the exit plate for directing the larger light materials up and over the exit plate back into the stream of water. Smaller materials drop through the classification plate into the trap.

Systems and methods for treating aggregated material to separate out components thereof, using jetted water and/or screening apparatus, particularly to recover sand reusable in a fracking operation.

Systems and methods for treating aggregated material to separate out components thereof, using jetted water and/or screening apparatus, particularly to recover sand reusable in a fracking operation.

Systems and methods for treating aggregated material to separate out components thereof, using jetted water and/or screening appartatus, particularly to recover sand reousable in a fracking operation.

Systems and methods for treating aggregated material to separate out components thereof, using jetted water and/or screening appartatus, particularly to recover sand reousable in a fracking operation.

Systems and methods for treating aggregated material to separate out components thereof, using jetted water and/or screening apparatus, particularly to recover sand reusable in a fracking operation.

Systems and methods for treating aggregated material to separate out components thereof, using jetted water and/or screening appartatus, particularly to recover sand reusable in a fracking operation.

A method is provided for removing ultrafine particles from an atomized powder. The method includes contacting the atomized powder with a removal liquid, the atomized powder comprising fine particles and ultrafine particles, wherein contacting the atomized powder with the removal liquid comprises adding energy to a mixture of the atomized powder and the removal liquid to detach the ultrafine particles from the fine particles; and separating the removal liquid and ultrafine particles from the fine particles.

A method is provided for removing ultrafine particles from an atomized powder. The method includes contacting the atomized powder with a removal liquid, the atomized powder comprising fine particles and ultrafine particles, wherein contacting the atomized powder with the removal liquid comprises adding energy to a mixture of the atomized powder and the removal liquid to detach the ultrafine particles from the fine particles; and separating the removal liquid and ultrafine particles from the fine particles.