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US 6,673,248 B2Granted
Apparatus and method of purifying water with ozone
AssigneeS C Trade & Consult AB
InventorSudhir Chowdhury
Life of this patent
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Abstract
A method for purifying a flow of water, by eliminating any Legionella bacteria present therein using (a) an ozone generator, (b) an ozone injector for injecting ozone into the flow of water, (c) a mixing chamber for mixing the ozone with the flow of water; (d) an outlet for the flow of water, and (e) an electronic controller for the operation thereof: wherein the mixing chamber is of an inner geometry such as to create turbulence in the flow of water therein.
Claims12
A method for purifying a flow of water in a water flow line by use of an apparatus comprising
- (a) means for providing a flow of an ozone-containing gas;
- (b) means for introducing the flow of the ozone-containing gas into the flow of water;
- (c) a mixing chamber for turbulent mixing of the ozone-containing gas with the flow of water, located on the water flow line in the vicinity of
- (d) an outlet for the flow of water;
- and
- (e) electronic control means adapted to control the operation of said apparatus, thereby providing a flow of water which on exiting through the outlet for the water flow is essentially free from residual ozone and from contamination by Legionella bacteria wherein the ozone-containing gas is introduced into the flow of water so as to maintain
- (i) a concentration of ozone in the water within the mixing chamber of about 0.01-0.5 mg/l;
- and
- (ii) a contact time between the ozone-containing gas and the water that is essentially equal to the time of continuous flow of the water flow from a water inlet of the mixing chamber to the outlet for the water.
6 more elements
Dependencies are inferred from the claim text.