Experimental investigation on acclimatized wastewater for membrane bioreactors

Guo, WS; Vigneswaran, S; Ngo, HH; Xing, W

Experimental investigation on acclimatized wastewater for membrane bioreactors

Guo, WS

Vigneswaran, S

Ngo, HH

Xing, W

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Publication Type:: Journal Article
Citation:: Desalination, 2007, 207 (1-3), pp. 383 - 391
Issue Date:: 2007-03-10

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Field	Value	Language
dc.contributor.author	Guo, WS https://orcid.org/0000-0001-5542-2858	en_US
dc.contributor.author	Vigneswaran, S https://orcid.org/0000-0002-8117-4322	en_US
dc.contributor.author	Ngo, HH https://orcid.org/0000-0002-0296-2866	en_US
dc.contributor.author	Xing, W	en_US
dc.date.issued	2007-03-10	en_US
dc.identifier.citation	Desalination, 2007, 207 (1-3), pp. 383 - 391	en_US
dc.identifier.issn	0011-9164	en_US
dc.identifier.uri	http://hdl.handle.net/10453/4216
dc.description.abstract	The inoculation and acclimatization of activated sludge (AS) is one of the vital components to provide preferably suspended aerobic growth and desired treatment mechanism for a treated wastewater using MBR. The performance of a floating media biofilter-submerged membrane bioreactor (FMB-SMBR) and a submerged membrane adsorption bioreactor (SMABR) were investigated during the acclimatization. It was observed that the duration of sludge from wastewater treatment plant in Sydney acclimated to synthetic wastewater was about 25 days for FMB-SMBR system, while SMABR took around 12 days to reach the stabilization. The acclimatized FMB-SMBR (without membrane operation) resulted in significant high dissolved organic removal of 94%. The acclimatized FMBR-SMBR system showed more than 20% TOC removal efficiency than that of the acclimatized SMABR system. Meanwhile, the results of oxygen uptake rate (OUR) measurement suggested that OUR is an accurate and simple indicator to biological process acclimatization. Membrane fouling study of the FMB-CFMF system was also carried out. The results indicate that the acclimatized FMB could be used as a pretreatment unit prior to SMBR in order to minimize membrane fouling when the FMB-SMBR system operates under sub-critical flux condition. © 2007.	en_US
dc.relation.ispartof	Desalination	en_US
dc.relation.isbasedon	10.1016/j.desal.2006.07.013	en_US
dc.subject.classification	Chemical Engineering	en_US
dc.title	Experimental investigation on acclimatized wastewater for membrane bioreactors	en_US
dc.type	Journal Article
utslib.citation.volume	1-3	en_US
utslib.citation.volume	207	en_US
utslib.for	0905 Civil Engineering	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/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	open_access
pubs.issue	1-3	en_US
pubs.publication-status	Published	en_US
pubs.volume	207	en_US

Abstract:

The inoculation and acclimatization of activated sludge (AS) is one of the vital components to provide preferably suspended aerobic growth and desired treatment mechanism for a treated wastewater using MBR. The performance of a floating media biofilter-submerged membrane bioreactor (FMB-SMBR) and a submerged membrane adsorption bioreactor (SMABR) were investigated during the acclimatization. It was observed that the duration of sludge from wastewater treatment plant in Sydney acclimated to synthetic wastewater was about 25 days for FMB-SMBR system, while SMABR took around 12 days to reach the stabilization. The acclimatized FMB-SMBR (without membrane operation) resulted in significant high dissolved organic removal of 94%. The acclimatized FMBR-SMBR system showed more than 20% TOC removal efficiency than that of the acclimatized SMABR system. Meanwhile, the results of oxygen uptake rate (OUR) measurement suggested that OUR is an accurate and simple indicator to biological process acclimatization. Membrane fouling study of the FMB-CFMF system was also carried out. The results indicate that the acclimatized FMB could be used as a pretreatment unit prior to SMBR in order to minimize membrane fouling when the FMB-SMBR system operates under sub-critical flux condition. © 2007.

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http://hdl.handle.net/10453/4216