Method of biological phosphorus removal with maximum nitrogen removal in wastewater
US8568592B2 · kind B2 · utility
4Cited by
9References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 13, 2011 |
| Grant date | Oct 29, 2013 |
| Priority date | — |
| Expiry date | Jan 13, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/10
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method for removing phosphorus and nitrogen from an activated sludge wastewater treatment system is provided consisting of one or more anaerobic zones followed by two or more activated sludge reactors operating in parallel each having independent aeration/mixing means, whereby the utilization of the influent organic carbon under anoxic conditions; and thereby, the selection of denitrifying phosphate accumulating organisms (DNPAOs) over non-denitrifying phosphate accumulating organisms (PAOs), is maximized in order to further maximize the removal of phosphorus and nitrogen in the wastewater treatment system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.