Method and apparatus for treating water
US4332685A · kind A · utility
32Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 1978 |
| Grant date | Jun 1, 1982 |
| Priority date | — |
| Expiry date | Jan 26, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2311/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Water softened by ion exchange is pumped through a reverse osmosis material. The water treated by reverse osmosis may be stored under pressure and the reverse osmosis waste stream is recycled through the ion exchanger. The stored volume of water treated by reverse osmosis is approximately equal to or less than the volume of water that can be stored in the ion exchanger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.