Pre-deposited dynamic membrane filtration - a review

A dynamic membrane (DM) is a layer of particles deposited via permeation drag onto a conventional membrane, such that the deposited particles act as a secondary membrane that minimizes fouling of the primary membrane to lower transmembrane pressures (TMP) and enable higher permeate fluxes. Since the...

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Main Authors: Anantharaman, Aditya, Chun, Youngpil, Hua, Tao, Chew, Jia Wei, Wang, Rong
Other Authors: School of Civil and Environmental Engineering
Format: Article
Language:English
Published: 2022
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Online Access:https://hdl.handle.net/10356/161297
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Institution: Nanyang Technological University
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spelling sg-ntu-dr.10356-1612972022-08-24T04:51:49Z Pre-deposited dynamic membrane filtration - a review Anantharaman, Aditya Chun, Youngpil Hua, Tao Chew, Jia Wei Wang, Rong School of Civil and Environmental Engineering School of Chemical and Biomedical Engineering Nanyang Environment and Water Research Institute Singapore Membrane Technology Centre Engineering::Civil engineering Dynamic Membrane Solute Rejection A dynamic membrane (DM) is a layer of particles deposited via permeation drag onto a conventional membrane, such that the deposited particles act as a secondary membrane that minimizes fouling of the primary membrane to lower transmembrane pressures (TMP) and enable higher permeate fluxes. Since the first DM was created in 1966 at the Oak Ridge National Laboratory, numerous studies have reported synthesis of DMs using various materials and explored their abilities to perform reverse osmosis (RO), nanofiltration (NF), ultrafiltration (UF) and microfiltration (MF). DMs are classified into two categories, namely, (i) self-formed, whereby the feed constituents form the DM; and (ii) pre-deposited, whereby the DM is formed by a layer of particles other than the feed prior to introduction of the feed. This paper endeavors to present a comprehensive review of the state-of-the-art on the latter. Key materials used as DMs, their formation and various factors influencing it, regeneration of DMs and modifications to DM systems for performance enhancement are discussed. The role of DMs in preventing fouling in the primary membrane (PM) is explained. The applications of DMs in four major areas, namely, salt and organic solute rejection, treatment of industrial effluents, treatment of water and wastewater, and oily-wastewater treatment are reviewed. Furthermore, technical and economic advantages of DMs over conventional processes are considered, and challenges in current DM research are discussed. Finally, directions for future research are suggested. National Research Foundation (NRF) Public Utilities Board (PUB) This research grant was supported by the Singapore National Research Foundation under its Environment and Water Research Program and administered by PUB, Singapore’s National Water Agency (grant number: 1601-CRPW-T20). The Singapore Membrane Technology Center, Nanyang Environment and Water Research Institute, Nanyang Technological University is supported by the Economic Development Board of Singapore. 2022-08-24T04:49:58Z 2022-08-24T04:49:58Z 2020 Journal Article Anantharaman, A., Chun, Y., Hua, T., Chew, J. W. & Wang, R. (2020). Pre-deposited dynamic membrane filtration - a review. Water Research, 173, 115558-. https://dx.doi.org/10.1016/j.watres.2020.115558 0043-1354 https://hdl.handle.net/10356/161297 10.1016/j.watres.2020.115558 32044594 2-s2.0-85078996863 173 115558 en 1601-CRPW-T20 Water Research © 2020 Elsevier Ltd. All rights reserved.
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Civil engineering
Dynamic Membrane
Solute Rejection
spellingShingle Engineering::Civil engineering
Dynamic Membrane
Solute Rejection
Anantharaman, Aditya
Chun, Youngpil
Hua, Tao
Chew, Jia Wei
Wang, Rong
Pre-deposited dynamic membrane filtration - a review
description A dynamic membrane (DM) is a layer of particles deposited via permeation drag onto a conventional membrane, such that the deposited particles act as a secondary membrane that minimizes fouling of the primary membrane to lower transmembrane pressures (TMP) and enable higher permeate fluxes. Since the first DM was created in 1966 at the Oak Ridge National Laboratory, numerous studies have reported synthesis of DMs using various materials and explored their abilities to perform reverse osmosis (RO), nanofiltration (NF), ultrafiltration (UF) and microfiltration (MF). DMs are classified into two categories, namely, (i) self-formed, whereby the feed constituents form the DM; and (ii) pre-deposited, whereby the DM is formed by a layer of particles other than the feed prior to introduction of the feed. This paper endeavors to present a comprehensive review of the state-of-the-art on the latter. Key materials used as DMs, their formation and various factors influencing it, regeneration of DMs and modifications to DM systems for performance enhancement are discussed. The role of DMs in preventing fouling in the primary membrane (PM) is explained. The applications of DMs in four major areas, namely, salt and organic solute rejection, treatment of industrial effluents, treatment of water and wastewater, and oily-wastewater treatment are reviewed. Furthermore, technical and economic advantages of DMs over conventional processes are considered, and challenges in current DM research are discussed. Finally, directions for future research are suggested.
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Anantharaman, Aditya
Chun, Youngpil
Hua, Tao
Chew, Jia Wei
Wang, Rong
format Article
author Anantharaman, Aditya
Chun, Youngpil
Hua, Tao
Chew, Jia Wei
Wang, Rong
author_sort Anantharaman, Aditya
title Pre-deposited dynamic membrane filtration - a review
title_short Pre-deposited dynamic membrane filtration - a review
title_full Pre-deposited dynamic membrane filtration - a review
title_fullStr Pre-deposited dynamic membrane filtration - a review
title_full_unstemmed Pre-deposited dynamic membrane filtration - a review
title_sort pre-deposited dynamic membrane filtration - a review
publishDate 2022
url https://hdl.handle.net/10356/161297
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