Photocatalytic water treatment apparatus
AssigneesPentair Filtration, Inc., Wisconsin Alumni Research Foundation
InventorsGary Hatch, Michael Steinhardt, Michael Kurth, Marc Anderson
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Abstract
A cartridge for a water treatment system, effective to assist in the removal of contaminants by photocatalytic oxidation and by adsorption, includes a plurality of stacked disks, preferably made of a UV light transmissive material, which disks define circuitous flow paths for water being treated. In a preferred embodiment, the disk surfaces contacted by the water are provided with a coating of a catalyst, such as TiO2, activated by a UV light source positioned in the center of the cartridge.
Claims20
An apparatus for treating a flow of water to facilitate the removal of contaminants therein, comprising:
- a pair of disks having complementary interfitting structure on opposite disk faces sized and positioned to define a flow chamber having a series of concentric flow channels;
- inlet means for directing the flow of water to be treated into the outermost flow channel of the flow chamber;
- flow channel connecting means for directing the flow serially from the outermost flow channel into the next adjacent flow channel in a manner causing at least a portion of the flow of water to contact the flow channels along their full lengths;
- and,
- outlet means for directing treated water from the innermost flow channel of the flow chamber toward an outlet from the apparatus.
An apparatus for treating water to facilitate the removal of contaminants therein comprising:
- a plurality of circular disks, each disk having a pattern of alternating concentric ribs and grooves on one face and a complementary pattern of alternating grooves and ribs on the opposite face;
- said patterns of ribs and grooves sized to interengage when one disk is placed on another disk with the one face of one disk in contact with the opposite face of the other disk to define a flow chamber having a series of concentric flow channels;
- a flow inlet in the radially outermost flow channel of each disk pair to direct water to be treated into the flow chamber;
- a flow passage connecting each adjacent pair of concentric flow channels, each flow passage being located diametrically opposite the flow passage in the next adjacent flow channel, such that the water to be treated follows a tortuous path and contacts the full length of each flow channel;
- and,
- a flow outlet from the radially innermost flow channel to direct treated water from the apparatus.
Dependencies are inferred from the claim text.