Advancements in osmotically driven membrane systems including low pressure control
US9861937B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2014 |
| Grant date | Jan 9, 2018 |
| Priority date | — |
| Expiry date | Mar 14, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2325/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An example water purification system includes a forward osmosis module, a reverse osmosis module, a pump powered by an electric motor, and a pressure sensor. The forward osmosis module may receive a feed stream and a draw stream, and may produce an intermediate product stream. The intermediate product stream may be pressurized by a pump and provided to the reverse osmosis module. The reverse osmosis module may generate a product stream and return the draw stream to the forward osmosis module. The pressure sensor may monitor the pressure of the intermediate product stream, and the pressure may be used to determine the speed of the electric motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.