Sludge filtration apparatus and filter assembly thereof
US8540079B2 · kind B2 · utility
1Cited by
1References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2007 |
| Grant date | Sep 24, 2013 |
| Priority date | — |
| Expiry date | Dec 9, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2303/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A sludge filtration apparatus has a sludge tank configured to store sludge and at least one filter assembly. The filter assembly includes a filtration membrane for filtering the sludge and a pipe insertable in the filtration membrane to supply air to a secondary side of the filtration membrane for dislodging the sludge from the filtration membrane. The pipe has a plurality of holes for discharging gas, namely air, to an area in which the filtration membrane inclines downwardly with the secondary side thereof. The sludge filtration apparatus can prevent thickened sludge from remaining in an upper portion of the filter assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.