Method and apparatus for removing organic substances, nitrogen and phosphorus from highly concentrated organic waste water
US9550690B2 · kind B2 · utility
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4Claims
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Key dates
| Filing date | Feb 6, 2013 |
| Grant date | Jan 24, 2017 |
| Priority date | — |
| Expiry date | Apr 5, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E50/30
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The present invention relates to a method and apparatus for removing organic substances, nitrogen, and phosphorus from highly concentrated waste water, which includes the steps of: stirring organic waste water; mixing the waste water with an added neutralizer; supplying a flocculant to the mixture to flocculate sludge; and separating sludge and water by pneumatic dehydration, thereby continuously removing organic substances, nitrogen, and phosphorus from waste water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.