Method and apparatus for reusing wastewater
US11945744B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 14, 2023 |
| Grant date | Apr 2, 2024 |
| Priority date | — |
| Expiry date | Apr 14, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2303/22
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed are a method and apparatus for reusing wastewater. The method for reusing wastewater disclosed herein includes: generating a mixed wastewater by mixing multiple types of wastewater (S20); performing a first purification by passing the mixed wastewater through a flocculation-sedimentation unit (S40); performing a second purification by passing an effluent of the flocculation-sedimentation unit through a membrane bioreactor (MBR) (S60); performing a third purification by passing an effluent of the MBR through a reverse-osmosis membrane unit (S80); and reusing an effluent of the reverse-osmosis membrane unit as cooling water or industrial water (S100).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.