Patent ID: 8663474

Claim:
A method of removing filtrate from a suspension comprising: a. providing a filtration system comprising: i. a circular porous disc with two sides and an inner volume, a plurality of pores ranging from 1 micron to 100 microns and a filtrate port on each side of the disc; ii. a source of vacuum connected to each filtrate port; iii. a turbine propeller assembly equal in diameter to the diameter of the disc and positioned at a distance between 0.1 cm to 1 cm away from the each side of the disc, a means of rotating the turbine propeller and a speed controller; and iv. a housing to hold the disc and the turbine propellers in place; b. disposing the filtration system completely in a suspension in need of removal of filtrate from the suspension; c. connecting the filtrate ports of the disc to a source of vacuum of sufficient power to draw the filtrate across the surface of the disc; d. starting the turbine propellers to start blowing the suspension towards the surface of the disc to dislodge any particles adhering to the surface of the disc; and e. adjusting the speed of the turbine propeller to keep the pores of the disc unblocked.