Abstract
The hybrid forward osmosis and freezing desalination system (10) includes a forward osmosis chamber (12) and a freezer or chiller (22) in fluid communication with a draw solution outlet (18) of a permeate side (PS) of the forward osmosis chamber (12). The freezer (22) freezes a mixture of a draw solution and desalinated water to produce frozen crystals of draw solution suspended in desalinated water. A separator (24) receives the frozen crystals of draw solution suspended in desalinated water and outputs the desalinated water as a final fresh water product. A melter (28) receives the frozen crystals of the draw solution and melts the frozen crystals of the draw solution to produce recovered draw solution. A recirculation pump recirculates the recovered draw solution back through the permeate side (PS) of the forward osmosis chamber (12).
| Original language | English |
|---|---|
| Patent number | WO2018156756 |
| IPC | C02F 9/ 00 A I |
| Priority date | 23/02/17 |
| Publication status | Published - 30 Aug 2018 |