Recent advances in membrane development for treating surfactant- and oil-containing feed streams via membrane distillation
Membrane distillation (MD) has been touted as a promising technology for niche applications such as desalination of surfactant- and oil-containing feed streams. Hitherto, the deployment of conventional hydrophobic MD membranes for such applications is limited and unsatisfactory. This is because the...
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| Format: | Journal Article |
| Language: | English |
| Published: |
2021
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| Online Access: | https://hdl.handle.net/10356/150783 |
| _version_ | 1826109658273677312 |
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| author | Chew, Nick Guan Pin Zhao, Shanshan Wang, Rong |
| author2 | Interdisciplinary Graduate School (IGS) |
| author_facet | Interdisciplinary Graduate School (IGS) Chew, Nick Guan Pin Zhao, Shanshan Wang, Rong |
| author_sort | Chew, Nick Guan Pin |
| collection | NTU |
| description | Membrane distillation (MD) has been touted as a promising technology for niche applications such as desalination of surfactant- and oil-containing feed streams. Hitherto, the deployment of conventional hydrophobic MD membranes for such applications is limited and unsatisfactory. This is because the presence of surfactants and oils in aqueous feed streams reduces the surface-tension of these media significantly and the attachment of these contaminants onto hydrophobic membrane surfaces often leads to membrane fouling and pore wetting, which compromises on the quantity and quality of water recovered. Endowing MD membranes with surfaces of special wettabilities has been proposed as a strategy to combat membrane fouling and pore wetting. This involves the design of local kinetic energy barriers such as multilevel re-entrant surface structures, surfaces with ultralow surface-energies, and interfacial hydration layers to impede transition to the fully-wetted Wenzel state. This review critiques the state-of-the-art fabrication and surface-modification methods as well as practices used in the development of omniphobic and Janus MD membranes with specific emphasis on the advances, challenges, and future improvements for application in challenging surfactant- and oil-containing feed streams. |
| first_indexed | 2024-10-01T02:21:32Z |
| format | Journal Article |
| id | ntu-10356/150783 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:21:32Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1507832021-07-03T20:11:42Z Recent advances in membrane development for treating surfactant- and oil-containing feed streams via membrane distillation Chew, Nick Guan Pin Zhao, Shanshan Wang, Rong Interdisciplinary Graduate School (IGS) School of Civil and Environmental Engineering Singapore Membrane Technology Centre Nanyang Environment and Water Research Institute Engineering::Environmental engineering Membrane Distillation Janus Membrane Membrane distillation (MD) has been touted as a promising technology for niche applications such as desalination of surfactant- and oil-containing feed streams. Hitherto, the deployment of conventional hydrophobic MD membranes for such applications is limited and unsatisfactory. This is because the presence of surfactants and oils in aqueous feed streams reduces the surface-tension of these media significantly and the attachment of these contaminants onto hydrophobic membrane surfaces often leads to membrane fouling and pore wetting, which compromises on the quantity and quality of water recovered. Endowing MD membranes with surfaces of special wettabilities has been proposed as a strategy to combat membrane fouling and pore wetting. This involves the design of local kinetic energy barriers such as multilevel re-entrant surface structures, surfaces with ultralow surface-energies, and interfacial hydration layers to impede transition to the fully-wetted Wenzel state. This review critiques the state-of-the-art fabrication and surface-modification methods as well as practices used in the development of omniphobic and Janus MD membranes with specific emphasis on the advances, challenges, and future improvements for application in challenging surfactant- and oil-containing feed streams. Economic Development Board (EDB) Accepted version The authors would like to acknowledge funding support from the Singapore Economic Development Board to the Singapore Membrane Technology Centre. 2021-05-28T07:26:34Z 2021-05-28T07:26:34Z 2019 Journal Article Chew, N. G. P., Zhao, S. & Wang, R. (2019). Recent advances in membrane development for treating surfactant- and oil-containing feed streams via membrane distillation. Advances in Colloid and Interface Science, 273, 102022-. https://dx.doi.org/10.1016/j.cis.2019.102022 0001-8686 https://hdl.handle.net/10356/150783 10.1016/j.cis.2019.102022 31494337 2-s2.0-85071658938 273 102022 en Advances in Colloid and Interface Science © 2019 Elsevier B.V. All rights reserved. This paper was published in Advances in Colloid and Interface Science and is made available with permission of Elsevier B.V. application/pdf |
| spellingShingle | Engineering::Environmental engineering Membrane Distillation Janus Membrane Chew, Nick Guan Pin Zhao, Shanshan Wang, Rong Recent advances in membrane development for treating surfactant- and oil-containing feed streams via membrane distillation |
| title | Recent advances in membrane development for treating surfactant- and oil-containing feed streams via membrane distillation |
| title_full | Recent advances in membrane development for treating surfactant- and oil-containing feed streams via membrane distillation |
| title_fullStr | Recent advances in membrane development for treating surfactant- and oil-containing feed streams via membrane distillation |
| title_full_unstemmed | Recent advances in membrane development for treating surfactant- and oil-containing feed streams via membrane distillation |
| title_short | Recent advances in membrane development for treating surfactant- and oil-containing feed streams via membrane distillation |
| title_sort | recent advances in membrane development for treating surfactant and oil containing feed streams via membrane distillation |
| topic | Engineering::Environmental engineering Membrane Distillation Janus Membrane |
| url | https://hdl.handle.net/10356/150783 |
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