Apparatus and method for purifying water in a storage tank
US8066941B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2007 |
| Grant date | Nov 29, 2011 |
| Priority date | — |
| Expiry date | Jan 26, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2201/3221
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A pressurized water tank having a head space includes a pump for recirculating the water through a nozzle disposed in the head space. The out flowing stream of water will entrain air and cause mixing of air entrained water with the remaining water in the tank. To enhance air entrainment and convey the air entrained water to a location well below the water level, the stream of water is injected into a vertical venturi tube. The entrained air will have an oxidizing effect upon organic matter and also cause circulation of the water within the tank. To enhance oxidation of organic and inorganic matter, a UV lamp may be located in the head space to convert oxygen molecules in the air into ozone molecules. Such ozone molecules would be entrained in the stream of water flowing out of the nozzle and into the tube and have a strong oxidizing effect upon organic and inorganic matter. UV radiation from the UV lamp will also have a virucidal and germicidal effect upon microorganisms on the surface of the water and in water to some depth below the water surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.