Abstract
A novel method to determine reverse draw and forward feed solute fluxes in forward osmosis (FO) membrane was developed to analyze FO performance more accurately. Specifically, apparent draw solute permeability (Bd) and feed solute permeability (Bf) were proposed, instead of relying on single solute permeability (B). Our results clearly demonstrated that both draw and feed fluxes were not well predicted with the solute permeability (B) measured by RO mode experiment, typically employed in FO membrane characterization. In this study, the draw and feed solute permeabilities were evaluated independently by the experimental protocols which simulated actual FO operation more closely. Much better agreement between experimental observations and theoretical predictions was obtained when both Bd and Bf were applied for the analysis of draw and feed solute fluxes, respectively. Thus, the utilization of apparent draw and feed solute permeabilities provides more precise assessment of draw solute loss and permeate water quality, which are very important for FO membrane process design and operation.
| Original language | English |
|---|---|
| Pages (from-to) | 128-135 |
| Number of pages | 8 |
| Journal | Desalination |
| Volume | 352 |
| DOIs | |
| Publication status | Published - 2014 Sep 7 |
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ASJC Scopus subject areas
- Chemical Engineering(all)
- Mechanical Engineering
- Chemistry(all)
- Materials Science(all)
- Water Science and Technology
Cite this
A novel analysis of reverse draw and feed solute fluxes in forward osmosis membrane process. / Kim, Bongchul; Lee, Sangyoup; Hong, Seungkwan.
In: Desalination, Vol. 352, 07.09.2014, p. 128-135.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A novel analysis of reverse draw and feed solute fluxes in forward osmosis membrane process
AU - Kim, Bongchul
AU - Lee, Sangyoup
AU - Hong, Seungkwan
PY - 2014/9/7
Y1 - 2014/9/7
N2 - A novel method to determine reverse draw and forward feed solute fluxes in forward osmosis (FO) membrane was developed to analyze FO performance more accurately. Specifically, apparent draw solute permeability (Bd) and feed solute permeability (Bf) were proposed, instead of relying on single solute permeability (B). Our results clearly demonstrated that both draw and feed fluxes were not well predicted with the solute permeability (B) measured by RO mode experiment, typically employed in FO membrane characterization. In this study, the draw and feed solute permeabilities were evaluated independently by the experimental protocols which simulated actual FO operation more closely. Much better agreement between experimental observations and theoretical predictions was obtained when both Bd and Bf were applied for the analysis of draw and feed solute fluxes, respectively. Thus, the utilization of apparent draw and feed solute permeabilities provides more precise assessment of draw solute loss and permeate water quality, which are very important for FO membrane process design and operation.
AB - A novel method to determine reverse draw and forward feed solute fluxes in forward osmosis (FO) membrane was developed to analyze FO performance more accurately. Specifically, apparent draw solute permeability (Bd) and feed solute permeability (Bf) were proposed, instead of relying on single solute permeability (B). Our results clearly demonstrated that both draw and feed fluxes were not well predicted with the solute permeability (B) measured by RO mode experiment, typically employed in FO membrane characterization. In this study, the draw and feed solute permeabilities were evaluated independently by the experimental protocols which simulated actual FO operation more closely. Much better agreement between experimental observations and theoretical predictions was obtained when both Bd and Bf were applied for the analysis of draw and feed solute fluxes, respectively. Thus, the utilization of apparent draw and feed solute permeabilities provides more precise assessment of draw solute loss and permeate water quality, which are very important for FO membrane process design and operation.
KW - Feed solute flux
KW - Forward osmosis (FO) membrane
KW - Internal concentration polarization (ICP)
KW - Reverse draw solute flux
KW - Solute permeability coefficient (B)
UR - http://www.scopus.com/inward/record.url?scp=84907102623&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84907102623&partnerID=8YFLogxK
U2 - 10.1016/j.desal.2014.08.012
DO - 10.1016/j.desal.2014.08.012
M3 - Article
AN - SCOPUS:84907102623
VL - 352
SP - 128
EP - 135
JO - Desalination
JF - Desalination
SN - 0011-9164
ER -