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Application of Ozone-Assisted Membrane Cleaning for Natural Organic Matter Fouled Membranes

Regina Khayrullina, Chedly Tizaoui Orcid Logo, Paul Williams Orcid Logo, Chris Spacie

Ozone: Science & Engineering, Pages: 1 - 9

Swansea University Authors: Chedly Tizaoui Orcid Logo, Paul Williams Orcid Logo

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DOI (Published version): 10.1080/01919512.2017.1325350

Abstract

The popularity of membrane technology in water treatment has been rising for over last 50 years due to wide range of filtration processes and applications, cost effective production and installation as well as safe and efficient water production. However, the development and improvement of membranes...

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Published in: Ozone: Science & Engineering
ISSN: 0191-9512 1547-6545
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa34542
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spelling 2020-06-22T15:43:42.9233779 v2 34542 2017-07-04 Application of Ozone-Assisted Membrane Cleaning for Natural Organic Matter Fouled Membranes 4b34a0286d3c0b0b081518fa6987031d 0000-0003-2159-7881 Chedly Tizaoui Chedly Tizaoui true false 3ed8f1e5d997e0fcb256fb6501605cec 0000-0003-0511-4659 Paul Williams Paul Williams true false 2017-07-04 CHEG The popularity of membrane technology in water treatment has been rising for over last 50 years due to wide range of filtration processes and applications, cost effective production and installation as well as safe and efficient water production. However, the development and improvement of membranes is ongoing due to number of weaknesses. Membrane fouling is a major drawback of membrane application in water and waste water treatment. Mostly caused by natural organic matter (NOM), fouling forms a layer on top of the membrane and blocks pores reducing the water permeation and can be potentially destructive to the membrane structure. The issue of membrane fouling can be addressed during membrane manufacturing, maintenance and operation. In the current study, the graphene-based nanomaterials (GBN) were incorporated in polyvinylidene fluoride (PVDF) to manufacture membranes via the phase-inversion technique. The resulting membranes show significant improvement to the properties of the pure PVDF membranes and their antifouling ability. The addition of GBN enhanced the water permeation by over 79% as a result of increased membrane hydrophilicity. Although this enhancement is beneficial, membrane fouling remained an issue despite the observed improvement. In this study, ozone, which is an effective oxidant, was evaluated as a novel technique for the cleaning of humic acid-fouled membranes. When ozone cleaning was applied to the humic acid-fouled membranes, reestablishment of close to original flux values was observed after just 30 min of cleaning. This statement is supported by SEM images that give an insight into the fouling of the membrane surface after the application of the cleaning methods. The data indicate that ozone is an effective technique for membrane cleaning against NOM-induced fouling. Journal Article Ozone: Science & Engineering 1 9 0191-9512 1547-6545 Ozone, Enhanced Membranes, Graphene, Membrane Cleaning, Membrane Fouling, Membranes, Natural Organic Matter, PVDF 31 12 2017 2017-12-31 10.1080/01919512.2017.1325350 COLLEGE NANME Chemical Engineering COLLEGE CODE CHEG Swansea University KESS 2020-06-22T15:43:42.9233779 2017-07-04T09:05:07.6026732 Regina Khayrullina 1 Chedly Tizaoui 0000-0003-2159-7881 2 Paul Williams 0000-0003-0511-4659 3 Chris Spacie 4 0034542-05072017103051.pdf Khayrullina2017.pdf 2017-07-05T10:30:51.4170000 Output 1259785 application/pdf Accepted Manuscript true 2018-05-01T00:00:00.0000000 true eng
title Application of Ozone-Assisted Membrane Cleaning for Natural Organic Matter Fouled Membranes
spellingShingle Application of Ozone-Assisted Membrane Cleaning for Natural Organic Matter Fouled Membranes
Chedly Tizaoui
Paul Williams
title_short Application of Ozone-Assisted Membrane Cleaning for Natural Organic Matter Fouled Membranes
title_full Application of Ozone-Assisted Membrane Cleaning for Natural Organic Matter Fouled Membranes
title_fullStr Application of Ozone-Assisted Membrane Cleaning for Natural Organic Matter Fouled Membranes
title_full_unstemmed Application of Ozone-Assisted Membrane Cleaning for Natural Organic Matter Fouled Membranes
title_sort Application of Ozone-Assisted Membrane Cleaning for Natural Organic Matter Fouled Membranes
author_id_str_mv 4b34a0286d3c0b0b081518fa6987031d
3ed8f1e5d997e0fcb256fb6501605cec
author_id_fullname_str_mv 4b34a0286d3c0b0b081518fa6987031d_***_Chedly Tizaoui
3ed8f1e5d997e0fcb256fb6501605cec_***_Paul Williams
author Chedly Tizaoui
Paul Williams
author2 Regina Khayrullina
Chedly Tizaoui
Paul Williams
Chris Spacie
format Journal article
container_title Ozone: Science & Engineering
container_start_page 1
publishDate 2017
institution Swansea University
issn 0191-9512
1547-6545
doi_str_mv 10.1080/01919512.2017.1325350
document_store_str 1
active_str 0
description The popularity of membrane technology in water treatment has been rising for over last 50 years due to wide range of filtration processes and applications, cost effective production and installation as well as safe and efficient water production. However, the development and improvement of membranes is ongoing due to number of weaknesses. Membrane fouling is a major drawback of membrane application in water and waste water treatment. Mostly caused by natural organic matter (NOM), fouling forms a layer on top of the membrane and blocks pores reducing the water permeation and can be potentially destructive to the membrane structure. The issue of membrane fouling can be addressed during membrane manufacturing, maintenance and operation. In the current study, the graphene-based nanomaterials (GBN) were incorporated in polyvinylidene fluoride (PVDF) to manufacture membranes via the phase-inversion technique. The resulting membranes show significant improvement to the properties of the pure PVDF membranes and their antifouling ability. The addition of GBN enhanced the water permeation by over 79% as a result of increased membrane hydrophilicity. Although this enhancement is beneficial, membrane fouling remained an issue despite the observed improvement. In this study, ozone, which is an effective oxidant, was evaluated as a novel technique for the cleaning of humic acid-fouled membranes. When ozone cleaning was applied to the humic acid-fouled membranes, reestablishment of close to original flux values was observed after just 30 min of cleaning. This statement is supported by SEM images that give an insight into the fouling of the membrane surface after the application of the cleaning methods. The data indicate that ozone is an effective technique for membrane cleaning against NOM-induced fouling.
published_date 2017-12-31T03:42:52Z
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score 11.037319

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