Process and apparatus for controlling aeration during nitrification and denitrification of water
US8956540B2 · kind B2 · utility
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1References
16Claims
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Key dates
| Filing date | Dec 23, 2011 |
| Grant date | Feb 17, 2015 |
| Priority date | — |
| Expiry date | Dec 23, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/10
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A process for treating water that includes ammonium. The water is directed to a biological reactor and the quantity of nitrates formed in the reactor and the quantity of ammonium reduced in the reactor is determined. A ratio of the quantity of nitrates formed to the quantity of ammonium reduced is determined. Further, the percentage of ammonium reduced is also determined. The water in the biological reactor is aerated by injecting oxygen into the reactor where the amount of oxygen injected is a function of the ratio and the percentage of ammonium reduced in the reactor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.