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Periodic electrolysis technique for in situ fouling control and removal with low-pressure membrane filtration / Hadeel Subhi Abid, Daniel Johnson, Ben Clifford, David Gethin, Paolo Bertoncello, Raed Hashaikeh, Nidal Hilal

Desalination, Volume: 433, Pages: 10 - 24

Swansea University Authors: Daniel Johnson, David Gethin, Paolo Bertoncello, Nidal Hilal

Abstract

Electrically conductive membranes and their application for desalination pre-treatment and water purification have an exceptional performance due to self-cleaning of fouling deposits by the application of external electric fields. However, the effectiveness of existing conductive membranes is hamper...

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Published in: Desalination
ISSN: 0011-9164
Published: Elsevier 2018
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URI: https://cronfa.swan.ac.uk/Record/cronfa38085
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spelling 2018-03-06T12:41:09.3059000 v2 38085 2018-01-14 Periodic electrolysis technique for in situ fouling control and removal with low-pressure membrane filtration 4bdcc306062428d2715b0dd308cc092f 0000-0001-6921-0389 Daniel Johnson Daniel Johnson true false 20b93675a5457203ae87ebc32bd6d155 0000-0002-7142-8253 David Gethin David Gethin true false ad352842aa5fe9c1947bd24ff61816c8 0000-0002-6557-7885 Paolo Bertoncello Paolo Bertoncello true false 3acba771241d878c8e35ff464aec0342 Nidal Hilal Nidal Hilal true false 2018-01-14 Electrically conductive membranes and their application for desalination pre-treatment and water purification have an exceptional performance due to self-cleaning of fouling deposits by the application of external electric fields. However, the effectiveness of existing conductive membranes is hampered by their common applications. The current approach aims to better understand the in situ fouling mitigation and enhanced flux by employing two different electrically conductive coated feed spacer configurations during filtration of humic acid at concentrations of 8, 12,16 and 20 ppm. Periodic electrolysis was applied for a duration of 2 min with three intervals of 30, 45 and 60 min. A comparison of both the feed spacers was made in terms of the effect of the applied potential and interval time on enhancement of water flux, as well as the required energy consumption at four different concentrations. In terms of enhanced flux and energy consumption, feed spacer A (2×2 mm aperture size) revealed better results than feed spacer B (3×2 mm), which may be attributed to a greater conductive area. The reported technique shows a major advantage of in situ feed spacer self-cleaning, thus providing a continuous and non-destructive approach for the mitigation of surface fouling. Journal Article Desalination 433 10 24 Elsevier 0011-9164 Pre-treatment; NOM; Electrically conductive coated feed spacer; water treatment. 1 5 2018 2018-05-01 10.1016/j.desal.2018.01.019 COLLEGE NANME COLLEGE CODE Swansea University 2018-03-06T12:41:09.3059000 2018-01-14T04:39:34.5666191 Hadeel Subhi Abid 1 Daniel Johnson 0000-0001-6921-0389 2 Ben Clifford 3 David Gethin 0000-0002-7142-8253 4 Paolo Bertoncello 0000-0002-6557-7885 5 Raed Hashaikeh 6 Nidal Hilal 7 0038085-05022018090435.pdf abid2018.pdf 2018-02-05T09:04:35.5970000 Output 2600214 application/pdf Accepted Manuscript true 2019-02-03T00:00:00.0000000 true eng
title Periodic electrolysis technique for in situ fouling control and removal with low-pressure membrane filtration
spellingShingle Periodic electrolysis technique for in situ fouling control and removal with low-pressure membrane filtration
Daniel, Johnson
David, Gethin
Paolo, Bertoncello
Nidal, Hilal
title_short Periodic electrolysis technique for in situ fouling control and removal with low-pressure membrane filtration
title_full Periodic electrolysis technique for in situ fouling control and removal with low-pressure membrane filtration
title_fullStr Periodic electrolysis technique for in situ fouling control and removal with low-pressure membrane filtration
title_full_unstemmed Periodic electrolysis technique for in situ fouling control and removal with low-pressure membrane filtration
title_sort Periodic electrolysis technique for in situ fouling control and removal with low-pressure membrane filtration
author_id_str_mv 4bdcc306062428d2715b0dd308cc092f
20b93675a5457203ae87ebc32bd6d155
ad352842aa5fe9c1947bd24ff61816c8
3acba771241d878c8e35ff464aec0342
author_id_fullname_str_mv 4bdcc306062428d2715b0dd308cc092f_***_Daniel, Johnson
20b93675a5457203ae87ebc32bd6d155_***_David, Gethin
ad352842aa5fe9c1947bd24ff61816c8_***_Paolo, Bertoncello
3acba771241d878c8e35ff464aec0342_***_Nidal, Hilal
author Daniel, Johnson
David, Gethin
Paolo, Bertoncello
Nidal, Hilal
author2 Hadeel Subhi Abid
Daniel Johnson
Ben Clifford
David Gethin
Paolo Bertoncello
Raed Hashaikeh
Nidal Hilal
format Journal article
container_title Desalination
container_volume 433
container_start_page 10
publishDate 2018
institution Swansea University
issn 0011-9164
doi_str_mv 10.1016/j.desal.2018.01.019
publisher Elsevier
document_store_str 1
active_str 0
description Electrically conductive membranes and their application for desalination pre-treatment and water purification have an exceptional performance due to self-cleaning of fouling deposits by the application of external electric fields. However, the effectiveness of existing conductive membranes is hampered by their common applications. The current approach aims to better understand the in situ fouling mitigation and enhanced flux by employing two different electrically conductive coated feed spacer configurations during filtration of humic acid at concentrations of 8, 12,16 and 20 ppm. Periodic electrolysis was applied for a duration of 2 min with three intervals of 30, 45 and 60 min. A comparison of both the feed spacers was made in terms of the effect of the applied potential and interval time on enhancement of water flux, as well as the required energy consumption at four different concentrations. In terms of enhanced flux and energy consumption, feed spacer A (2×2 mm aperture size) revealed better results than feed spacer B (3×2 mm), which may be attributed to a greater conductive area. The reported technique shows a major advantage of in situ feed spacer self-cleaning, thus providing a continuous and non-destructive approach for the mitigation of surface fouling.
published_date 2018-05-01T03:58:56Z
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