Modelling of particle deposition in a submerged membrane microfiltration system

Pradhan, M; Vigneswaran, S; Ben Aim, R; Kandasamy, J

Modelling of particle deposition in a submerged membrane microfiltration system

Pradhan, M Vigneswaran, S

Ben Aim, R Kandasamy, J

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Publication Type:: Journal Article
Citation:: Desalination, 2014, 350 pp. 14 - 20
Issue Date:: 2014-10-01

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Field	Value	Language
dc.contributor.author	Pradhan, M	en_US
dc.contributor.author	Vigneswaran, S https://orcid.org/0000-0002-8117-4322	en_US
dc.contributor.author	Ben Aim, R	en_US
dc.contributor.author	Kandasamy, J	en_US
dc.date.issued	2014-10-01	en_US
dc.identifier.citation	Desalination, 2014, 350 pp. 14 - 20	en_US
dc.identifier.issn	0011-9164	en_US
dc.identifier.uri	http://hdl.handle.net/10453/35007
dc.description.abstract	In this study, microfiltration of a concentrated suspension of kaolin clay was performed in an aerated tank with submerged flat sheet membranes. Particle deposition was correlated with cake resistance based on experimental results. The effects of air flow rate and permeate flux on transmembrane pressure (TMP) and on membrane resistance were studied. The experimental results show that the filtration resistance due to cake formation plays a dominant role in the total filtration resistance. An increase in permeate flux caused higher TMP development due to an increased amount of particle deposition. Conversely, an increase in air flow rate reduced TMP by detaching deposited layers back into suspension. The particle deposition under different filtration flux and air flow rates was correlated to establish an empirical formula. Based on the experimental results, a general relationship between the cake resistance, permeate flux and particle deposition was derived as Rc=1.01×1012J·wc that suggests that the cake resistance is proportional to the multiplication of flux and cake deposition. Moreover, the effect of air flow on cake porosity was observed to be more significant at low permeate flux. © 2014 Elsevier B.V.	en_US
dc.relation.ispartof	Desalination	en_US
dc.relation.isbasedon	10.1016/j.desal.2014.07.003	en_US
dc.subject.classification	Chemical Engineering	en_US
dc.title	Modelling of particle deposition in a submerged membrane microfiltration system	en_US
dc.type	Journal Article
utslib.citation.volume	350	en_US
utslib.for	090404 Membrane and Separation Technologies	en_US
utslib.for	0907 Environmental Engineering	en_US
utslib.for	090407 Process Control and Simulation	en_US
utslib.for	03 Chemical Sciences	en_US
utslib.for	09 Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US
pubs.volume	350	en_US

Abstract:

In this study, microfiltration of a concentrated suspension of kaolin clay was performed in an aerated tank with submerged flat sheet membranes. Particle deposition was correlated with cake resistance based on experimental results. The effects of air flow rate and permeate flux on transmembrane pressure (TMP) and on membrane resistance were studied. The experimental results show that the filtration resistance due to cake formation plays a dominant role in the total filtration resistance. An increase in permeate flux caused higher TMP development due to an increased amount of particle deposition. Conversely, an increase in air flow rate reduced TMP by detaching deposited layers back into suspension. The particle deposition under different filtration flux and air flow rates was correlated to establish an empirical formula. Based on the experimental results, a general relationship between the cake resistance, permeate flux and particle deposition was derived as Rc=1.01×1012J·wc that suggests that the cake resistance is proportional to the multiplication of flux and cake deposition. Moreover, the effect of air flow on cake porosity was observed to be more significant at low permeate flux. © 2014 Elsevier B.V.

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http://hdl.handle.net/10453/35007