Methods of conditioning mixed liquor using water soluble quaternary ammonium starches
US8778185B2 · kind B2 · utility
0Cited by
8References
18Claims
0Family size
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Key dates
| Filing date | Mar 31, 2010 |
| Grant date | Jul 15, 2014 |
| Priority date | — |
| Expiry date | Mar 31, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/10
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Disclosed is a method of conditioning mixed liquor in membrane bioreactor (MBR) systems comprising adding an effective amount of a treatment composition comprising a water soluble cationic quaternary ammonium starch or a water soluble quaternary ammonium starch/gum blend to the mixed liquor. Also disclosed is a method of improving flux in an MBR system comprising adding the treatment composition to the mixed liquor of the MBR.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.