Systems and processes for filtering water with ultrafine granular media

Abstract

A system for filtering water is described herein, the system comprising a granular filter media having an effective size of 0.05 mm to 0.4 mm. In some embodiments, a granular filter media described herein comprises a ceramic, a sand, a glass, a zeolite, a garnet, an anthracite coal, an activated carbon, an ilmentite, or any combination thereof. In some instances, a layer of granular filter media described herein has a flow rate of up to 12 gpm/ft2, and is capable of filtering out materials having an average size in three dimensions of 1 μm or larger without requiring any type of coagulation to alter the surface properties of the particles.

Dependencies are inferred from the claim text.