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Assessing the forward osmosis performances using CTA membrane: effect of solution volume ratio and type of draw solute
Jeng, Yih Law1, Abdul Wahab Mohammad2.
Osmotically-driven forward osmosis (FO) has gained significant attention in the last decade
due to its potential application in various disciplines. Draw solution serves as the driving force
in FO process for inducing water transport across the membrane. FO technology can be used
to reject or concentrate high valuable products in the chemical and bioprocess industries
which often encounter great challenge in terms of dilute product formation. In this study,
commercial cellulose triacetate (CTA) flat sheet FO membrane was investigated using
several types of inorganic draw solute. Pure water fluxes ranged from 5.20 to 6.30 L.m-2.h-1
were achieved for selected draw solutes. The reverse solute leakage was shown by the
increment of conductivity in the feed solution. Among the draw solutes, NaCl demonstrated
highest reverse solute leakage (72.45 µS cm-1) attributed to its relatively smaller molecular size.
The water fluxes at feed to draw solution volume ratios of 1:2 and 1:3 were found to be slightly
lower than that to the volume ratios of 1:0.6 and 1:1. With respect to sodium succinate feed
solution, MgCl2 was capable of generating higher osmotic pressure and thus higher water flux
was observed compared to NaCl draw solute. Overall, the selected inorganic draw solutes
demonstrated encouraging FO performances and could be used for concentrating sodium
succinate solution.
Affiliation:
- Universiti Kebangsaan Malaysia, Malaysia
- Universiti Kebangsaan Malaysia, Malaysia
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Indexation |
Indexed by |
MyJurnal (2021) |
H-Index
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6 |
Immediacy Index
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0.000 |
Rank |
0 |
Indexed by |
Scopus 2020 |
Impact Factor
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CiteScore (1.4) |
Rank |
Q3 (Engineering (all)) |
Additional Information |
SJR (0.191) |
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