Numerical simulation of the electric field gradient squared in a new electrode configuration for fouling suppression in submerged membrane bioreactors / Bouthaina Larbi

Fouling is one of the central problems in submerged membrane bioreactors (MBRs), and the use of additional forces for antifouling has gained increasing attention in the recent years. In this study, a novel fouling suppression system in MBRs based on the application of AC dielectrophoresis force is p...

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Main Authors:	Larbi, Bouthaina, Alhawari, Alaa, Du, Fei, Baune, Michael
Format:	Article
Language:	English
Published:	Universiti Teknologi Mara Cawangan Pulau Pinang 2017
Subjects:	Production of electric energy or power. Powerplants. Central stations Applications of electric power
Online Access:	http://ir.uitm.edu.my/id/eprint/28738/ http://ir.uitm.edu.my/id/eprint/28738/1/AJ_BOUTHAINA%20LARBI%20EAJ%20P%2017.pdf

id	uitm-28738
recordtype	eprints
spelling	uitm-287382020-03-11T06:57:07Z http://ir.uitm.edu.my/id/eprint/28738/ Numerical simulation of the electric field gradient squared in a new electrode configuration for fouling suppression in submerged membrane bioreactors / Bouthaina Larbi Larbi, Bouthaina Alhawari, Alaa Du, Fei Baune, Michael Production of electric energy or power. Powerplants. Central stations Applications of electric power Fouling is one of the central problems in submerged membrane bioreactors (MBRs), and the use of additional forces for antifouling has gained increasing attention in the recent years. In this study, a novel fouling suppression system in MBRs based on the application of AC dielectrophoresis force is proposed. The feasibility of the new system is demonstrated based on numerical simulations. To this end, the impact of electrode configuration (i.e. electrode geometry, the distance between electrodes, insulation properties & insulation thickness) on the DEP force i.e. on the electric field gradient squared (EFG), are studied for an optimal design of the new system. It was found that the EFG is high on the membrane surface when the electrode diameter and the distance between electrodes are smaller. Obtained results also showed a drop of the electric field gradient squared at the mid between two electrodes with highest EFG value on the electrode. Finally, numerical simulations revealed that a thickness of 20 μm of TiO2 insulation is optimal to generate sufficient DEP force while avoiding joule heating problems. Universiti Teknologi Mara Cawangan Pulau Pinang 2017-06 Article PeerReviewed text en http://ir.uitm.edu.my/id/eprint/28738/1/AJ_BOUTHAINA%20LARBI%20EAJ%20P%2017.pdf Larbi, Bouthaina and Alhawari, Alaa and Du, Fei and Baune, Michael (2017) Numerical simulation of the electric field gradient squared in a new electrode configuration for fouling suppression in submerged membrane bioreactors / Bouthaina Larbi. ESTEEM Academic Journal, 13. pp. 18-29. ISSN 1675-7939
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
language	English
topic	Production of electric energy or power. Powerplants. Central stations Applications of electric power
spellingShingle	Production of electric energy or power. Powerplants. Central stations Applications of electric power Larbi, Bouthaina Alhawari, Alaa Du, Fei Baune, Michael Numerical simulation of the electric field gradient squared in a new electrode configuration for fouling suppression in submerged membrane bioreactors / Bouthaina Larbi
description	Fouling is one of the central problems in submerged membrane bioreactors (MBRs), and the use of additional forces for antifouling has gained increasing attention in the recent years. In this study, a novel fouling suppression system in MBRs based on the application of AC dielectrophoresis force is proposed. The feasibility of the new system is demonstrated based on numerical simulations. To this end, the impact of electrode configuration (i.e. electrode geometry, the distance between electrodes, insulation properties & insulation thickness) on the DEP force i.e. on the electric field gradient squared (EFG), are studied for an optimal design of the new system. It was found that the EFG is high on the membrane surface when the electrode diameter and the distance between electrodes are smaller. Obtained results also showed a drop of the electric field gradient squared at the mid between two electrodes with highest EFG value on the electrode. Finally, numerical simulations revealed that a thickness of 20 μm of TiO2 insulation is optimal to generate sufficient DEP force while avoiding joule heating problems.
format	Article
author	Larbi, Bouthaina Alhawari, Alaa Du, Fei Baune, Michael
author_facet	Larbi, Bouthaina Alhawari, Alaa Du, Fei Baune, Michael
author_sort	Larbi, Bouthaina
title	Numerical simulation of the electric field gradient squared in a new electrode configuration for fouling suppression in submerged membrane bioreactors / Bouthaina Larbi
title_short	Numerical simulation of the electric field gradient squared in a new electrode configuration for fouling suppression in submerged membrane bioreactors / Bouthaina Larbi
title_full	Numerical simulation of the electric field gradient squared in a new electrode configuration for fouling suppression in submerged membrane bioreactors / Bouthaina Larbi
title_fullStr	Numerical simulation of the electric field gradient squared in a new electrode configuration for fouling suppression in submerged membrane bioreactors / Bouthaina Larbi
title_full_unstemmed	Numerical simulation of the electric field gradient squared in a new electrode configuration for fouling suppression in submerged membrane bioreactors / Bouthaina Larbi
title_sort	numerical simulation of the electric field gradient squared in a new electrode configuration for fouling suppression in submerged membrane bioreactors / bouthaina larbi
publisher	Universiti Teknologi Mara Cawangan Pulau Pinang
publishDate	2017
url	http://ir.uitm.edu.my/id/eprint/28738/ http://ir.uitm.edu.my/id/eprint/28738/1/AJ_BOUTHAINA%20LARBI%20EAJ%20P%2017.pdf
first_indexed	2023-09-18T23:20:42Z
last_indexed	2023-09-18T23:20:42Z
_version_	1777419411469107200

Numerical simulation of the electric field gradient squared in a new electrode configuration for fouling suppression in submerged membrane bioreactors / Bouthaina Larbi

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