Gas diffuser for aeration vessel of membrane assembly
US6328886A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jul 7, 2000 |
| Grant date | Dec 11, 2001 |
| Priority date | — |
| Expiry date | Jul 7, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F2101/24
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention concerns a gas diffuser constructed and arranged to disperse gas into a aeration vessel of a water treatment assembly from a blower. The gas diffuser includes main pipes, branch pipes extending between the main pipes and containing gas discharge ports, wherein the branch pipes have a smaller cross-sectional area than the cross-sectional area of the main pipes. The gas discharge ports are further sized, constructed and arranged to reduce the possibility or likelihood of sludge from blocking the ports or entering the branch pipes. This object is achieved either by placement of the ports on the bottom sides of the branch pipes or, alternatively, by construction of the ports to include conduit members, themselves having an arrangement of openings or coverings to prevent or reduce the likelihood of sludge from blocking the ports or entering the branch pipes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.