Carbon–silica composite nanofiber membrane for high flux separation of water-in-oil emulsion – Performance study and fouling mechanism
A flexible, hydrophobic and oleophilic carbon nanofiber membrane was prepared from electrospinning for cross-flow filtration of water-in-oil emulsion under various operating conditions. Experimental results show that the membrane has a high throughput of clean oil at low pressure. Furthermore, the m...
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sg-ntu-dr.10356-808712020-03-07T11:43:28Z Carbon–silica composite nanofiber membrane for high flux separation of water-in-oil emulsion – Performance study and fouling mechanism Tai, Ming Hang Juay, Jermyn Leckie, James O. Sun, Darren Delai School of Civil and Environmental Engineering Singapore-Stanford Partnership Program DRNTU::Engineering::Environmental engineering::Water treatment Electrospinning; Carbon nanofiber; Superoleophilicity; Membrane; Oil–water separation A flexible, hydrophobic and oleophilic carbon nanofiber membrane was prepared from electrospinning for cross-flow filtration of water-in-oil emulsion under various operating conditions. Experimental results show that the membrane has a high throughput of clean oil at low pressure. Furthermore, the membrane performance in terms of permeate flux was governed by the operating pressure and cross-flow velocity. The membrane has a water breakthrough pressure of 0.206 bar under constant cross-flow velocity. The investigation of membrane fouling mechanisms using pore blocking models and resistance model reveals that the membrane experiences either of external or internal fouling or a combination of both under different operating conditions. Using the contour plot analysis, it was suggested that the optimum operating conditions for the membrane to perform efficiently shall be at high cross-flow velocity and at low pressure (between 0.07 and 0.206 bar). Keywords: Electrospinning; Carbon nanofiber; Superoleophilicity; Membrane; Oil–water separation Accepted version 2015-11-17T06:47:28Z 2019-12-06T14:16:18Z 2015-11-17T06:47:28Z 2019-12-06T14:16:18Z 2015 Journal Article Tai, M. H., Juay, J., Sun, D. D., & Leckie, J. O. (2015). Carbon–silica composite nanofiber membrane for high flux separation of water-in-oil emulsion – Performance study and fouling mechanism. Separation and Purification Technology, in press. 1383-5866 https://hdl.handle.net/10356/80871 http://hdl.handle.net/10220/38856 10.1016/j.seppur.2015.08.008 en Separation and Purification Technology © 2015 Elsevier. This is the author created version of a work that has been peer reviewed and accepted for publication by Separation and Purification Technology, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1016/j.seppur.2015.08.008]. 31 p. application/pdf |
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DRNTU::Engineering::Environmental engineering::Water treatment Electrospinning; Carbon nanofiber; Superoleophilicity; Membrane; Oil–water separation Tai, Ming Hang Juay, Jermyn Leckie, James O. Sun, Darren Delai Carbon–silica composite nanofiber membrane for high flux separation of water-in-oil emulsion – Performance study and fouling mechanism |
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A flexible, hydrophobic and oleophilic carbon nanofiber membrane was prepared from electrospinning for cross-flow filtration of water-in-oil emulsion under various operating conditions. Experimental results show that the membrane has a high throughput of clean oil at low pressure. Furthermore, the membrane performance in terms of permeate flux was governed by the operating pressure and cross-flow velocity. The membrane has a water breakthrough pressure of 0.206 bar under constant cross-flow velocity. The investigation of membrane fouling mechanisms using pore blocking models and resistance model reveals that the membrane experiences either of external or internal fouling or a combination of both under different operating conditions. Using the contour plot analysis, it was suggested that the optimum operating conditions for the membrane to perform efficiently shall be at high cross-flow velocity and at low pressure (between 0.07 and 0.206 bar). Keywords: Electrospinning; Carbon nanofiber; Superoleophilicity; Membrane; Oil–water separation |
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School of Civil and Environmental Engineering |
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School of Civil and Environmental Engineering Tai, Ming Hang Juay, Jermyn Leckie, James O. Sun, Darren Delai |
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Article |
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Tai, Ming Hang Juay, Jermyn Leckie, James O. Sun, Darren Delai |
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Tai, Ming Hang |
title |
Carbon–silica composite nanofiber membrane for high flux separation of water-in-oil emulsion – Performance study and fouling mechanism |
title_short |
Carbon–silica composite nanofiber membrane for high flux separation of water-in-oil emulsion – Performance study and fouling mechanism |
title_full |
Carbon–silica composite nanofiber membrane for high flux separation of water-in-oil emulsion – Performance study and fouling mechanism |
title_fullStr |
Carbon–silica composite nanofiber membrane for high flux separation of water-in-oil emulsion – Performance study and fouling mechanism |
title_full_unstemmed |
Carbon–silica composite nanofiber membrane for high flux separation of water-in-oil emulsion – Performance study and fouling mechanism |
title_sort |
carbon–silica composite nanofiber membrane for high flux separation of water-in-oil emulsion – performance study and fouling mechanism |
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2015 |
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https://hdl.handle.net/10356/80871 http://hdl.handle.net/10220/38856 |
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1681045195044421632 |