In-situ manipulation of gel layer fouling into gel layer membrane formation on porous supports for water treatment

The inaccessibility of clean water is one of the growing issues of this era. Indeed, cost-effective and sustainable methods for recycling wastewater are essential. Although membrane separation is an efficient technology for the recycling and purification of water, membrane fouling is still a major d...

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Autores principales:	Syed Sibt-e-Hassan, Dilshad Hussain, Ghulam Mustafa, Ghayas Uddin Siddiqui, Yahya I. Asiri, Jalal Uddin, Syed Ghulam Musharraf
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2022
Materias:	Gel layer membranes (GLMs) Extracellular polymeric substances (EPS) Membrane bioreactors (MBRs) Polyvinylidene fluoride (PVDF) Membrane fouling Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/1376f71a522b4847812212c14ceecadf
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spelling	oai:doaj.org-article:1376f71a522b4847812212c14ceecadf2021-11-26T04:26:04ZIn-situ manipulation of gel layer fouling into gel layer membrane formation on porous supports for water treatment1878-535210.1016/j.arabjc.2021.103526https://doaj.org/article/1376f71a522b4847812212c14ceecadf2022-02-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1878535221005414https://doaj.org/toc/1878-5352The inaccessibility of clean water is one of the growing issues of this era. Indeed, cost-effective and sustainable methods for recycling wastewater are essential. Although membrane separation is an efficient technology for the recycling and purification of water, membrane fouling is still a major drawback of this technology. This work is aimed to develop a dynamic method to form gel layer membranes (GLMs) by manipulating the irreversible fouling process itself as a problem-solving approach. A microporous polyvinylidene fluoride (PVDF) support is subjected to gel layer formation by applying a supernatant of industrial aerobic sludge (containing soluble extracellular polymeric substances EPS) as a feed. Retention of polysaccharides and calcium during the filtration and the topographical analysis after the filtration show that EPS uniformly formed a gel layer on the PVDF support. No further decline in permeability is observed (i.e. remained around 27–33 L/m2 hr) when the formed GLM is subjected to fouling under similar conditions. Moreover, the percent flux recovery ratio (FRR) of the GLM is also significant (i.e. 90.1 ± 2.71). The retention ability, hydrophilicity, porosity, and water uptake capability of the formed GLM also increased significantly. The optimal performance and stability of GLMs are observed at room temperature (RT) under neutral pH and sub-critical trance membrane pressures (TMP). Based on these results it is suggested that the in-situ manipulation of gel layer fouling is a viable approach for preparing fouling resistant GLMs with high retention efficiency, potentially applicable to wastewater treatment under normal conditions.Syed Sibt-e-HassanDilshad HussainGhulam MustafaGhayas Uddin SiddiquiYahya I. AsiriJalal UddinSyed Ghulam MusharrafElsevierarticleGel layer membranes (GLMs)Extracellular polymeric substances (EPS)Membrane bioreactors (MBRs)Polyvinylidene fluoride (PVDF)Membrane foulingChemistryQD1-999ENArabian Journal of Chemistry, Vol 15, Iss 2, Pp 103526- (2022)
institution	DOAJ
collection	DOAJ
language	EN
topic	Gel layer membranes (GLMs) Extracellular polymeric substances (EPS) Membrane bioreactors (MBRs) Polyvinylidene fluoride (PVDF) Membrane fouling Chemistry QD1-999
spellingShingle	Gel layer membranes (GLMs) Extracellular polymeric substances (EPS) Membrane bioreactors (MBRs) Polyvinylidene fluoride (PVDF) Membrane fouling Chemistry QD1-999 Syed Sibt-e-Hassan Dilshad Hussain Ghulam Mustafa Ghayas Uddin Siddiqui Yahya I. Asiri Jalal Uddin Syed Ghulam Musharraf In-situ manipulation of gel layer fouling into gel layer membrane formation on porous supports for water treatment
description	The inaccessibility of clean water is one of the growing issues of this era. Indeed, cost-effective and sustainable methods for recycling wastewater are essential. Although membrane separation is an efficient technology for the recycling and purification of water, membrane fouling is still a major drawback of this technology. This work is aimed to develop a dynamic method to form gel layer membranes (GLMs) by manipulating the irreversible fouling process itself as a problem-solving approach. A microporous polyvinylidene fluoride (PVDF) support is subjected to gel layer formation by applying a supernatant of industrial aerobic sludge (containing soluble extracellular polymeric substances EPS) as a feed. Retention of polysaccharides and calcium during the filtration and the topographical analysis after the filtration show that EPS uniformly formed a gel layer on the PVDF support. No further decline in permeability is observed (i.e. remained around 27–33 L/m2 hr) when the formed GLM is subjected to fouling under similar conditions. Moreover, the percent flux recovery ratio (FRR) of the GLM is also significant (i.e. 90.1 ± 2.71). The retention ability, hydrophilicity, porosity, and water uptake capability of the formed GLM also increased significantly. The optimal performance and stability of GLMs are observed at room temperature (RT) under neutral pH and sub-critical trance membrane pressures (TMP). Based on these results it is suggested that the in-situ manipulation of gel layer fouling is a viable approach for preparing fouling resistant GLMs with high retention efficiency, potentially applicable to wastewater treatment under normal conditions.
format	article
author	Syed Sibt-e-Hassan Dilshad Hussain Ghulam Mustafa Ghayas Uddin Siddiqui Yahya I. Asiri Jalal Uddin Syed Ghulam Musharraf
author_facet	Syed Sibt-e-Hassan Dilshad Hussain Ghulam Mustafa Ghayas Uddin Siddiqui Yahya I. Asiri Jalal Uddin Syed Ghulam Musharraf
author_sort	Syed Sibt-e-Hassan
title	In-situ manipulation of gel layer fouling into gel layer membrane formation on porous supports for water treatment
title_short	In-situ manipulation of gel layer fouling into gel layer membrane formation on porous supports for water treatment
title_full	In-situ manipulation of gel layer fouling into gel layer membrane formation on porous supports for water treatment
title_fullStr	In-situ manipulation of gel layer fouling into gel layer membrane formation on porous supports for water treatment
title_full_unstemmed	In-situ manipulation of gel layer fouling into gel layer membrane formation on porous supports for water treatment
title_sort	in-situ manipulation of gel layer fouling into gel layer membrane formation on porous supports for water treatment
publisher	Elsevier
publishDate	2022
url	https://doaj.org/article/1376f71a522b4847812212c14ceecadf
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In-situ manipulation of gel layer fouling into gel layer membrane formation on porous supports for water treatment

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