Anaerobic membrane bioreactor for treating a waste stream
US8758614B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 12, 2012 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Nov 12, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A waste stream having anaerobically biodegradable components is fed to an anaerobic reactor where the components react with microorganisms to biodegrade the components and produce biomass and biogas. Mixing occurs in select portions of the anaerobic reactor, particularly the bottom and top portions of the reactor. Relatively heavy solids settle to the bottom and are mixed with the mixed liquor while relatively light or fine solids float to the top portion of the anaerobic reactor where they are mixed with the mixed liquor. Mixed liquor is pumped from an intermediate portion of the anaerobic reactor to a membrane separation unit where the mixed liquor is separated into a permeate stream and a retentate stream that is concentrated with solids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.