| Download | - View accepted manuscript: Experimental studies in the dead-end ultrafiltration of dextran: analysis of concentration polarization (PDF, 803 KiB)
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| DOI | Resolve DOI: https://doi.org/10.1016/S1383-5866(03)00207-7 |
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| Author | Search for: Zaidi, S. K.1; Search for: Kumar, A. |
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| Affiliation | - National Research Council Canada. NRC Institute for Chemical Process and Environmental Technology
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| Format | Text, Article |
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| Subject | ultrafiltration; concentration polarization; filtration resistance; flux decline; osmotic pressure |
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| Abstract | Considerable theoretical and experimental work has been published to explain the cause of flux decline in the ultrafiltration (UF) of dextran. However, an experimental determination of resistance contributions due to polarization to the overall filtration resistance has not been addressed. Also, the effects of feed concentration and applied pressure on membrane concentration and boundary layer thickness and unsteady-state flux response to a step change in trans-membrane pressure have not been reported. This work reports experimental results of the ultrafiltration of dextran with a fully retentive membrane along with a procedure to determine the contributions of various resistances to filtration. It was observed that the ultrafiltration of dextran was osmotically limited in our work. The contribution of polarization resistance was found to be dependent on applied pressures and initial bulk feed concentrations whereas the boundary layer thickness of polarization was affected by feed concentration alone. |
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| Publication date | 2004-09-15 |
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| Terms of use | - You may reproduce (print, make photocopies, or download) the accepted manuscript without permission for non-commercial purposes (research, education, and private study), on the condition that you provide proper attribution of the source in all copies.
- Vous pouvez reproduire (imprimer, faire des photocopies ou télécharger) le manuscrit accepté sans autorisation à des fins non commerciales (recherche, éducation et études privées), à condition de fournir la source appropriée dans toutes les copies.
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC number | NRCC 46449 |
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| NPARC number | 12335842 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 62268522-6003-4711-a052-93ef5fe0ff3f |
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| Record created | 2009-09-10 |
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| Record modified | 2020-04-17 |
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