Influence of supporting media in suspension on membrane fouling reduction in submerged membrane bioreactor (SMBR)

Johir, MAH; Aryal, R; Vigneswaran, S; Kandasamy, J; Grasmick, A

Influence of supporting media in suspension on membrane fouling reduction in submerged membrane bioreactor (SMBR)

Johir, MAH

Aryal, R

Vigneswaran, S

Kandasamy, J Grasmick, A

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Publication Type:: Journal Article
Citation:: Journal of Membrane Science, 2011, 374 (1-2), pp. 121 - 128
Issue Date:: 2011-05-15

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Field	Value	Language
dc.contributor.author	Johir, MAH https://orcid.org/0000-0001-6222-6943	en_US
dc.contributor.author	Aryal, R https://orcid.org/0000-0001-7348-4649	en_US
dc.contributor.author	Vigneswaran, S https://orcid.org/0000-0002-8117-4322	en_US
dc.contributor.author	Kandasamy, J	en_US
dc.contributor.author	Grasmick, A	en_US
dc.date.issued	2011-05-15	en_US
dc.identifier.citation	Journal of Membrane Science, 2011, 374 (1-2), pp. 121 - 128	en_US
dc.identifier.issn	0376-7388	en_US
dc.identifier.uri	http://hdl.handle.net/10453/14663
dc.description.abstract	In this study, the SMBR was compared in terms of membrane fouling with and without the addition of suspended medium in the membrane reactor. The effectiveness of medium in suspension in submerged membrane bioreactor (SMBR) was evaluated at different filtration flux. The SMBR was operated at a flux of 5-30L/m2h (corresponding hydraulic retention time of 10-1.7h) with and without suspended medium. The suspended medium used in this study was granular activated carbon (GAC; particle size 300-600mm) at air scouring (aeration) rates of 0.5-1.5m3m-2 membrane areah-1. At higher aeration rate of 1.5m3/m2 membrane areah, the effect of flux on membrane resistance was found to be negligible. The reduction of aeration rate from 1.5 to 1.0m3m-2 membrane areah-1 resulted in a sudden rise of TMP. The addition of suspended medium prevented a sudden rise of TMP (total membrane resistance reduced from 51×1011 to 20×1011m-1). The organic removal efficiency remained high irrespective of flux. The molecular weight distribution (MWD) and excitation emission matrix (EEM) analysis of SMBR effluent showed a range of organic (composed of amino acids, biopolymers, humics and fulvic acids type substances) removed by the GAC both by scouring and adsorption mechanisms. © 2011 Elsevier B.V.	en_US
dc.relation.ispartof	Journal of Membrane Science	en_US
dc.relation.isbasedon	10.1016/j.memsci.2011.03.023	en_US
dc.subject.classification	Chemical Engineering	en_US
dc.title	Influence of supporting media in suspension on membrane fouling reduction in submerged membrane bioreactor (SMBR)	en_US
dc.type	Journal Article
utslib.citation.volume	1-2	en_US
utslib.citation.volume	374	en_US
utslib.for	0904 Chemical Engineering	en_US
utslib.for	0305 Organic Chemistry	en_US
utslib.for	0907 Environmental Engineering	en_US
utslib.for	03 Chemical Sciences	en_US
utslib.for	09 Engineering	en_US
dc.location.activity	WOS:000291131300013	en_US
dc.location.activity	Rotorua, NZ
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.issue	1-2	en_US
pubs.publication-status	Published	en_US
pubs.volume	374	en_US

Abstract:

In this study, the SMBR was compared in terms of membrane fouling with and without the addition of suspended medium in the membrane reactor. The effectiveness of medium in suspension in submerged membrane bioreactor (SMBR) was evaluated at different filtration flux. The SMBR was operated at a flux of 5-30L/m2h (corresponding hydraulic retention time of 10-1.7h) with and without suspended medium. The suspended medium used in this study was granular activated carbon (GAC; particle size 300-600mm) at air scouring (aeration) rates of 0.5-1.5m3m-2 membrane areah-1. At higher aeration rate of 1.5m3/m2 membrane areah, the effect of flux on membrane resistance was found to be negligible. The reduction of aeration rate from 1.5 to 1.0m3m-2 membrane areah-1 resulted in a sudden rise of TMP. The addition of suspended medium prevented a sudden rise of TMP (total membrane resistance reduced from 51×1011 to 20×1011m-1). The organic removal efficiency remained high irrespective of flux. The molecular weight distribution (MWD) and excitation emission matrix (EEM) analysis of SMBR effluent showed a range of organic (composed of amino acids, biopolymers, humics and fulvic acids type substances) removed by the GAC both by scouring and adsorption mechanisms. © 2011 Elsevier B.V.

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http://hdl.handle.net/10453/14663