Tubular membrane separation process and apparatus therefor
US4255255A · kind A · utility
8Cited by
3References
15Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 13, 1978 |
| Grant date | Mar 10, 1981 |
| Priority date | — |
| Expiry date | Apr 13, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A20/131
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus and process for tubular membrane separation, such as reverse osmosis or ultrafiltration, with an arrangement for removing undesirable deposits from the semipermeable membrane surfaces. For the removal of the deposits, elastic elements are passed, together with the feed solution being treated, through the tubular modules lined with semipermeable membranes, separated from the solution, and are recycled with a fresh supply of the solution from a tank, so that the semipermeable membranes are continuously cleaned while separating a part of the solution by permeation therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.