Novel hole-pillar spacer design for improved hydrodynamics and biofouling mitigation in membrane filtration

Abstract Feed spacers are the critical components of any spiral-wound filtration module, dictating the filtration performance. Three spacer designs, namely a non-woven commercial spacer (varying filament cross-section), a symmetric pillar spacer, and a novel hole-pillar spacer (constant filament dia...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Adnan Qamar, Sarah Kerdi, Syed Muztuza Ali, Ho Kyong Shon, Johannes S. Vrouwenvelder, Noreddine Ghaffour
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b6b32dc87d35409085598f642277b74f
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:b6b32dc87d35409085598f642277b74f
record_format	dspace
spelling	oai:doaj.org-article:b6b32dc87d35409085598f642277b74f2021-12-02T16:35:56ZNovel hole-pillar spacer design for improved hydrodynamics and biofouling mitigation in membrane filtration10.1038/s41598-021-86459-w2045-2322https://doaj.org/article/b6b32dc87d35409085598f642277b74f2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-86459-whttps://doaj.org/toc/2045-2322Abstract Feed spacers are the critical components of any spiral-wound filtration module, dictating the filtration performance. Three spacer designs, namely a non-woven commercial spacer (varying filament cross-section), a symmetric pillar spacer, and a novel hole-pillar spacer (constant filament diameter) were studied using Direct Numerical Simulations (DNS), 3-D printed and subsequently experimentally tested in a lab-scale ultrafiltration set-up with high biofouling potential feed water at various feed pressures. Independent of the applied pressure, the novel hole-pillar spacer showed initially the lowest feed channel pressure drop, the lowest shear stress, and the highest permeate flux compared to the commercial and pillar spacers. Furthermore, less biofilm thickness development on membrane surface was visualized by Optical Coherent Tomography (OCT) imaging for the proposed hole-pillar spacer. At higher feed pressure, a thicker biofilm developed on membrane surface for all spacer designs explaining the stronger decrease in permeate flux at high pressure. The findings systematically demonstrated the role of various spacer designs and applied pressure on the performance of pre-treatment process, while identifying specific shear stress distribution guidelines for engineering a new spacer design in different filtration techniques.Adnan QamarSarah KerdiSyed Muztuza AliHo Kyong ShonJohannes S. VrouwenvelderNoreddine GhaffourNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Adnan Qamar Sarah Kerdi Syed Muztuza Ali Ho Kyong Shon Johannes S. Vrouwenvelder Noreddine Ghaffour Novel hole-pillar spacer design for improved hydrodynamics and biofouling mitigation in membrane filtration
description	Abstract Feed spacers are the critical components of any spiral-wound filtration module, dictating the filtration performance. Three spacer designs, namely a non-woven commercial spacer (varying filament cross-section), a symmetric pillar spacer, and a novel hole-pillar spacer (constant filament diameter) were studied using Direct Numerical Simulations (DNS), 3-D printed and subsequently experimentally tested in a lab-scale ultrafiltration set-up with high biofouling potential feed water at various feed pressures. Independent of the applied pressure, the novel hole-pillar spacer showed initially the lowest feed channel pressure drop, the lowest shear stress, and the highest permeate flux compared to the commercial and pillar spacers. Furthermore, less biofilm thickness development on membrane surface was visualized by Optical Coherent Tomography (OCT) imaging for the proposed hole-pillar spacer. At higher feed pressure, a thicker biofilm developed on membrane surface for all spacer designs explaining the stronger decrease in permeate flux at high pressure. The findings systematically demonstrated the role of various spacer designs and applied pressure on the performance of pre-treatment process, while identifying specific shear stress distribution guidelines for engineering a new spacer design in different filtration techniques.
format	article
author	Adnan Qamar Sarah Kerdi Syed Muztuza Ali Ho Kyong Shon Johannes S. Vrouwenvelder Noreddine Ghaffour
author_facet	Adnan Qamar Sarah Kerdi Syed Muztuza Ali Ho Kyong Shon Johannes S. Vrouwenvelder Noreddine Ghaffour
author_sort	Adnan Qamar
title	Novel hole-pillar spacer design for improved hydrodynamics and biofouling mitigation in membrane filtration
title_short	Novel hole-pillar spacer design for improved hydrodynamics and biofouling mitigation in membrane filtration
title_full	Novel hole-pillar spacer design for improved hydrodynamics and biofouling mitigation in membrane filtration
title_fullStr	Novel hole-pillar spacer design for improved hydrodynamics and biofouling mitigation in membrane filtration
title_full_unstemmed	Novel hole-pillar spacer design for improved hydrodynamics and biofouling mitigation in membrane filtration
title_sort	novel hole-pillar spacer design for improved hydrodynamics and biofouling mitigation in membrane filtration
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/b6b32dc87d35409085598f642277b74f
work_keys_str_mv	AT adnanqamar novelholepillarspacerdesignforimprovedhydrodynamicsandbiofoulingmitigationinmembranefiltration AT sarahkerdi novelholepillarspacerdesignforimprovedhydrodynamicsandbiofoulingmitigationinmembranefiltration AT syedmuztuzaali novelholepillarspacerdesignforimprovedhydrodynamicsandbiofoulingmitigationinmembranefiltration AT hokyongshon novelholepillarspacerdesignforimprovedhydrodynamicsandbiofoulingmitigationinmembranefiltration AT johannessvrouwenvelder novelholepillarspacerdesignforimprovedhydrodynamicsandbiofoulingmitigationinmembranefiltration AT noreddineghaffour novelholepillarspacerdesignforimprovedhydrodynamicsandbiofoulingmitigationinmembranefiltration
_version_	1718383714337030144

Novel hole-pillar spacer design for improved hydrodynamics and biofouling mitigation in membrane filtration

Ejemplares similares