Photoinhibition of microbial nitrification in potable water
US9327998B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | Aug 26, 2013 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | Aug 26, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N13/00
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A method for providing a dose of visible light in covered drinking water storage facilities to control nitrification. In one embodiment, the method includes irradiating the water with a dose of visible light sufficient to inhibit microbial nitrification of the water. In one embodiment, the dose of visible light has a wavelength from approximately 400 Hz to approximately 700 Hz. In another embodiment, the dose of visible light has a wavelength from approximately 550 Hz to approximately 700 Hz. In a further embodiment, the dose of visible light has a wavelength from approximately 380 Hz to approximately 430 Hz.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.