Membrane fouling by emulsified oil: a review
Separation of liquid–liquid emulsions is a challenging problem that has gained importance with the development of unconventional oil resources. Large volumes of water contaminated by emulsified oil need to be treated for safe disposal or efficient reuse. Among technologies capable of removing oil di...
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sg-ntu-dr.10356-1620172022-09-29T05:37:40Z Membrane fouling by emulsified oil: a review Tummons, Emily Han, Qi Tanudjaja, Henry Jonathan Hejase, Charifa A. Chew, Jia Wei Tarabara, Volodymyr V. School of Chemical and Biomedical Engineering Nanyang Environment and Water Research Institute Singapore Membrane Technology Centre Engineering::Environmental engineering Emulsions Oil Separation of liquid–liquid emulsions is a challenging problem that has gained importance with the development of unconventional oil resources. Large volumes of water contaminated by emulsified oil need to be treated for safe disposal or efficient reuse. Among technologies capable of removing oil dispersed into smaller size droplets (<15 µm), membrane processes occupy a unique niche where the required separation performance and throughput can be achieved at a relatively modest cost. As with most membrane-based processes, separation of emulsified oil entails membrane fouling that requires regular maintenance and imposes additional operational costs. Emulsions present unique challenges as their fouling behavior is affected by droplets’ deformability, coalescence both in the bulk and on the membrane surface, membrane wetting by droplets and films, pore blockage and intrusion by oil. The purpose of this paper is to overview the literature on the separation of oil–water emulsions by pressure-driven membrane processes with an emphasis on how properties of emulsions and membranes affect separation performance. A particular focus is on membrane fouling by oil including physicochemical bases, detection, diagnosis, and visualization. The review spans studies with both industrial oily wastewater and synthetic model emulsions of various types of oil. The discussion of membrane materials is limited to surface modifications that render more fouling-resistant membranes. Economic Development Board (EDB) Ministry of Education (MOE) Nanyang Technological University This material is based upon work supported in part by the U.S. National Science Foundation Partnerships for International Research and Education program under Grant IIA-1243433 and the U.S. National Science Foundation Graduate Research Fellowship for Emily N. Tummons under Grant No. DGE-0802267. We also acknowledge funding from NTU iFood Research Grant (M4081465.120) and Singapore Ministry of Education Academic Research Fund Tier 2 (MOE2014-T2-2-074). The Singapore Membrane Technology Centre acknowledges support from Singapore’s Economic Development Board. 2022-09-29T05:37:40Z 2022-09-29T05:37:40Z 2020 Journal Article Tummons, E., Han, Q., Tanudjaja, H. J., Hejase, C. A., Chew, J. W. & Tarabara, V. V. (2020). Membrane fouling by emulsified oil: a review. Separation and Purification Technology, 248, 116919-. https://dx.doi.org/10.1016/j.seppur.2020.116919 1383-5866 https://hdl.handle.net/10356/162017 10.1016/j.seppur.2020.116919 2-s2.0-85085279470 248 116919 en M4081465.120 MOE2014-T2-2-074 Separation and Purification Technology © 2020 Elsevier B.V. All rights reserved. |
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Engineering::Environmental engineering Emulsions Oil Tummons, Emily Han, Qi Tanudjaja, Henry Jonathan Hejase, Charifa A. Chew, Jia Wei Tarabara, Volodymyr V. Membrane fouling by emulsified oil: a review |
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Separation of liquid–liquid emulsions is a challenging problem that has gained importance with the development of unconventional oil resources. Large volumes of water contaminated by emulsified oil need to be treated for safe disposal or efficient reuse. Among technologies capable of removing oil dispersed into smaller size droplets (<15 µm), membrane processes occupy a unique niche where the required separation performance and throughput can be achieved at a relatively modest cost. As with most membrane-based processes, separation of emulsified oil entails membrane fouling that requires regular maintenance and imposes additional operational costs. Emulsions present unique challenges as their fouling behavior is affected by droplets’ deformability, coalescence both in the bulk and on the membrane surface, membrane wetting by droplets and films, pore blockage and intrusion by oil. The purpose of this paper is to overview the literature on the separation of oil–water emulsions by pressure-driven membrane processes with an emphasis on how properties of emulsions and membranes affect separation performance. A particular focus is on membrane fouling by oil including physicochemical bases, detection, diagnosis, and visualization. The review spans studies with both industrial oily wastewater and synthetic model emulsions of various types of oil. The discussion of membrane materials is limited to surface modifications that render more fouling-resistant membranes. |
author2 |
School of Chemical and Biomedical Engineering |
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School of Chemical and Biomedical Engineering Tummons, Emily Han, Qi Tanudjaja, Henry Jonathan Hejase, Charifa A. Chew, Jia Wei Tarabara, Volodymyr V. |
format |
Article |
author |
Tummons, Emily Han, Qi Tanudjaja, Henry Jonathan Hejase, Charifa A. Chew, Jia Wei Tarabara, Volodymyr V. |
author_sort |
Tummons, Emily |
title |
Membrane fouling by emulsified oil: a review |
title_short |
Membrane fouling by emulsified oil: a review |
title_full |
Membrane fouling by emulsified oil: a review |
title_fullStr |
Membrane fouling by emulsified oil: a review |
title_full_unstemmed |
Membrane fouling by emulsified oil: a review |
title_sort |
membrane fouling by emulsified oil: a review |
publishDate |
2022 |
url |
https://hdl.handle.net/10356/162017 |
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1745574625838891008 |