Deriving Osmotic Pressures of Draw Solutes used in Osmotically Driven Membrane Processes
Journal Article
·
· Journal of Membrane Science
OSTI ID:1077157
In osmotically driven membrane processes (ODMPs), such as forward osmosis (FO), the concentration of the draw solute and the related osmotic pressure play a critical role in mass transport and overall process performance. Search of the literature reveals that the concentration units used to describe draw solutes vary and the methods of deriving osmotic pressure from those concentrations are often unclear or not discussed. This paper recommends the use of molality and identifies the benefit of experimentally determined van ‘t Hoff indices when calculating osmotic pressures.
- Research Organization:
- Idaho National Laboratory (INL)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC07-05ID14517
- OSTI ID:
- 1077157
- Report Number(s):
- INL/JOU-12-27647
- Journal Information:
- Journal of Membrane Science, Journal Name: Journal of Membrane Science Vol. 431
- Country of Publication:
- United States
- Language:
- English
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