Abstract
| Language | English |
|---|---|
| Pages | 205-215 |
| Number of pages | 10 |
| Journal | Journal of Membrane Science |
| Volume | 202 |
| DOIs | |
| Publication status | Published - 2002 |
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Keywords
- cellulose acetate
- hollow fiber
- shear rate effect
- reverse osmosis
- regression
- chemical engineering
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Study of shear rate influence on the performance of cellulose acetate reverse osmosis hollow fiber membranes. / Idris, A.; Noordin, M.Y.; Ismail, A.F.; Shilton, S.J.
In: Journal of Membrane Science, Vol. 202, 2002, p. 205-215.Research output: Contribution to journal › Article
TY - JOUR
T1 - Study of shear rate influence on the performance of cellulose acetate reverse osmosis hollow fiber membranes
AU - Idris, A.
AU - Noordin, M.Y.
AU - Ismail, A.F.
AU - Shilton, S.J.
PY - 2002
Y1 - 2002
N2 - The effect of shear rate on the separation performance of reverse osmosis hollow fiber membrane is discussed. Experiments involving six different dope extrusion rates (DERs) (ranging 2.5-5 ml/min) are performed with the other process factors set at the optimum conditions determined by the Taguchi analysis. This will enable an assessment to be made on the relationship between the DER and the rejection rate. The regression method is used to analyse the experimental results and an empirical model has been developed. Simultaneously, it is found that there is a fairly strong correlation between extrusion shear rate and the rejection rate of the membranes, whereby as the shear rate increases, the rejection rate increases until a critical level of shear is achieved, beyond which reverse osmosis membrane performance deteriorates, suggesting that there exists an optimum shear rate which yields optimal membrane morphology for reverse osmosis hollow fiber membranes.
AB - The effect of shear rate on the separation performance of reverse osmosis hollow fiber membrane is discussed. Experiments involving six different dope extrusion rates (DERs) (ranging 2.5-5 ml/min) are performed with the other process factors set at the optimum conditions determined by the Taguchi analysis. This will enable an assessment to be made on the relationship between the DER and the rejection rate. The regression method is used to analyse the experimental results and an empirical model has been developed. Simultaneously, it is found that there is a fairly strong correlation between extrusion shear rate and the rejection rate of the membranes, whereby as the shear rate increases, the rejection rate increases until a critical level of shear is achieved, beyond which reverse osmosis membrane performance deteriorates, suggesting that there exists an optimum shear rate which yields optimal membrane morphology for reverse osmosis hollow fiber membranes.
KW - cellulose acetate
KW - hollow fiber
KW - shear rate effect
KW - reverse osmosis
KW - regression
KW - chemical engineering
UR - http://dx.doi.org/10.1016/S0376-7388(01)00789-X
U2 - 10.1016/S0376-7388(01)00789-X
DO - 10.1016/S0376-7388(01)00789-X
M3 - Article
VL - 202
SP - 205
EP - 215
JO - Journal of Membrane Science
T2 - Journal of Membrane Science
JF - Journal of Membrane Science
SN - 0376-7388
ER -