Method and apparatus for concentrating an aqueous sludge by electro-osmosis
US4376022A · kind A · utility
14Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 5, 1981 |
| Grant date | Mar 8, 1983 |
| Priority date | — |
| Expiry date | Feb 5, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D61/56
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for concentrating aqueous sludges. The sludge circulates through an electro-osmosis enclosure (1), of which the porous walls (2, 3) retain the sludge particles but allow the liquid which separates and the gas which forms under the influence of the electric current to filter through. As the sludge descends in the enclosure, its hydrostatic pressure increases, and this reinforces the effectiveness of the electro-filtration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.