Bacterium-alga coupled sewage treatment device based on energy recycling and use method thereof
US11702354B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2020 |
| Grant date | Jul 18, 2023 |
| Priority date | — |
| Expiry date | Sep 18, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2303/10
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The present disclosure relates to a bacterium-alga coupled sewage treatment device based on energy recycling and a use method thereof. The device comprises a pretreatment device, a photobioreactor, an alga separation apparatus, a continuous flow bioreactor and a secondary sedimentation tank which are sequentially connected in order, the pretreatment device being connected to a municipal sewage inlet pipe, the photobioreactor being connected to a carbon dioxide gas charging device through a gas filling pipeline, one part of a sludge thickening tank being connected to the secondary sedimentation tank, the other part thereof being connected to remaining sludge of the pretreatment device, carbon dioxide generated from the sludge which flows through the thickening tank and is thermally-hydrolyzed and anaerobically-acidified being connected to the photobioreactor through a gas inlet pipeline, and the alga separation apparatus being further connected to a filter press. The present disclosure has the advantages of a rational structural design, reliable and stable operation, a low operation and maintenance cost and high automaticity and intelligence, and being suitable for the use and trans…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.