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Effect of Ultrasonic Frequency on the Performance and Cleaning of UF Membranes Used in Sea Water Desalination Pretreatment

Sahar Mhiyo, Ahmed Al-Mahmoud, Nidal Hilal

Civil and Environmental Research, Volume: 10, Issue: 3, Pages: 1 - 8

Swansea University Author: Nidal Hilal

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Abstract

This study aims to evaluate the impact of ultrasound (US) on the performance and cleaning of ultrafiltrationmembranes (UF) used in the pretreatment of sea water desalination plants. The effects of ultrasonic frequency onflux and fouling during the ultrafiltration process to saline solutions contamin...

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Published in: Civil and Environmental Research
ISSN: 2224-5790 2225-0514
Published: 2018
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URI: https://cronfa.swan.ac.uk/Record/cronfa39410
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first_indexed 2018-04-15T13:25:51Z
last_indexed 2018-05-29T19:02:08Z
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spelling 2018-05-29T14:49:17.9730453 v2 39410 2018-04-15 Effect of Ultrasonic Frequency on the Performance and Cleaning of UF Membranes Used in Sea Water Desalination Pretreatment 3acba771241d878c8e35ff464aec0342 Nidal Hilal Nidal Hilal true false 2018-04-15 FGSEN This study aims to evaluate the impact of ultrasound (US) on the performance and cleaning of ultrafiltrationmembranes (UF) used in the pretreatment of sea water desalination plants. The effects of ultrasonic frequency onflux and fouling during the ultrafiltration process to saline solutions contaminated with Humic Acid (HA) wereinvestigated. Ultrasonic application had a strong impact on the normal ultrafiltration process, especially at lowfrequency. The estimated increase in the flux were 67% and 38% when applying ultrasonic irradiation on deadend flat sheet ultrafiltration cell at 300 W and frequencies of 28 kHz and 40 kHz, respectively, but there was nosignificant increase in the flux at the upper frequency 100kHz where the flux nearly identical to that wasobtained by stirring only. Upon ultrasonic application, total filtration resistance and reverse resistance, whichinclude concentration polarization and cake layer, were sufficiently reduced as revealed by the quantitativeresistance analysis using resistance in series model. The flux recovery ratio was increased to 72% when 28 kHzfrequency was applied during mechanical and chemical cleaning. Ultrasonic enhancement factor (EUS) washigher by 11% in the online application of US on UF process than that of cleaning process. The application ofultrasound is an effective and promising way to enhance the ultrafiltration and cleaning of fouled membranesused in the pre-treatment of the seawater desalination process. Journal Article Civil and Environmental Research 10 3 1 8 2224-5790 2225-0514 ultrasound frequency, ultrafiltration, pretreatment, desalination of sea water 10 4 2018 2018-04-10 The journal is licensed under a Creative Commons Attribution 3.0 Unported (CC BY 3.0) License. COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2018-05-29T14:49:17.9730453 2018-04-15T05:21:45.1347162 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Sahar Mhiyo 1 Ahmed Al-Mahmoud 2 Nidal Hilal 3 0039410-15042018052449.pdf Sahar.pdf 2018-04-15T05:24:49.2670000 Output 332119 application/pdf Version of Record true 2018-04-15T00:00:00.0000000 true eng
title Effect of Ultrasonic Frequency on the Performance and Cleaning of UF Membranes Used in Sea Water Desalination Pretreatment
spellingShingle Effect of Ultrasonic Frequency on the Performance and Cleaning of UF Membranes Used in Sea Water Desalination Pretreatment
Nidal Hilal
title_short Effect of Ultrasonic Frequency on the Performance and Cleaning of UF Membranes Used in Sea Water Desalination Pretreatment
title_full Effect of Ultrasonic Frequency on the Performance and Cleaning of UF Membranes Used in Sea Water Desalination Pretreatment
title_fullStr Effect of Ultrasonic Frequency on the Performance and Cleaning of UF Membranes Used in Sea Water Desalination Pretreatment
title_full_unstemmed Effect of Ultrasonic Frequency on the Performance and Cleaning of UF Membranes Used in Sea Water Desalination Pretreatment
title_sort Effect of Ultrasonic Frequency on the Performance and Cleaning of UF Membranes Used in Sea Water Desalination Pretreatment
author_id_str_mv 3acba771241d878c8e35ff464aec0342
author_id_fullname_str_mv 3acba771241d878c8e35ff464aec0342_***_Nidal Hilal
author Nidal Hilal
author2 Sahar Mhiyo
Ahmed Al-Mahmoud
Nidal Hilal
format Journal article
container_title Civil and Environmental Research
container_volume 10
container_issue 3
container_start_page 1
publishDate 2018
institution Swansea University
issn 2224-5790
2225-0514
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 1
active_str 0
description This study aims to evaluate the impact of ultrasound (US) on the performance and cleaning of ultrafiltrationmembranes (UF) used in the pretreatment of sea water desalination plants. The effects of ultrasonic frequency onflux and fouling during the ultrafiltration process to saline solutions contaminated with Humic Acid (HA) wereinvestigated. Ultrasonic application had a strong impact on the normal ultrafiltration process, especially at lowfrequency. The estimated increase in the flux were 67% and 38% when applying ultrasonic irradiation on deadend flat sheet ultrafiltration cell at 300 W and frequencies of 28 kHz and 40 kHz, respectively, but there was nosignificant increase in the flux at the upper frequency 100kHz where the flux nearly identical to that wasobtained by stirring only. Upon ultrasonic application, total filtration resistance and reverse resistance, whichinclude concentration polarization and cake layer, were sufficiently reduced as revealed by the quantitativeresistance analysis using resistance in series model. The flux recovery ratio was increased to 72% when 28 kHzfrequency was applied during mechanical and chemical cleaning. Ultrasonic enhancement factor (EUS) washigher by 11% in the online application of US on UF process than that of cleaning process. The application ofultrasound is an effective and promising way to enhance the ultrafiltration and cleaning of fouled membranesused in the pre-treatment of the seawater desalination process.
published_date 2018-04-10T03:50:03Z
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score 11.037166

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