Method and apparatus for separating ions from liquids to produce separate diluted and concentrated effluents
US4948514A · kind A · utility
25Cited by
7References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1988 |
| Grant date | Aug 14, 1990 |
| Priority date | — |
| Expiry date | Sep 23, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/4604
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method and apparatus are disclosed for separating ions from a liquid through use of static fields generated by permanently polarized members which cooperate with membranes that act as mechanical inhibitors in encouraging positive ions to remain within a positive region of the apparatus and negative ions to remain within a negative region of the apparatus, thereby leaving a relatively ion-free effluent in a neutral region of the apparatus. The ions are separated through static electrical fields, which are permanently generated by the polarized material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.