Temporal variation of foulant characteristics in membrane bioreactor

Aryal, RK; Lebegue, J; Shon, HK; Vigneswaran, S; Kandasamy, J; Grasmick, A

Temporal variation of foulant characteristics in membrane bioreactor

Aryal, RK

Lebegue, J Shon, HK

Vigneswaran, S

Kandasamy, J Grasmick, A

Permalink

Publication Type:: Journal Article
Citation:: Desalination and Water Treatment, 2009, 6 (1-3), pp. 69 - 73
Issue Date:: 2009-01-01

Open Access

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is open access.

Adobe PDF

Download full textAdobe PDF (363.22 kB)

View on publisher's site

View statistics

Full metadata record

Field	Value	Language
dc.contributor.author	Aryal, RK https://orcid.org/0000-0001-7348-4649	en_US
dc.contributor.author	Lebegue, J	en_US
dc.contributor.author	Shon, HK https://orcid.org/0000-0002-3777-7169	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	2009-01-01	en_US
dc.identifier.citation	Desalination and Water Treatment, 2009, 6 (1-3), pp. 69 - 73	en_US
dc.identifier.issn	1944-3994	en_US
dc.identifier.uri	http://hdl.handle.net/10453/9186
dc.description.abstract	Many studies have been performed to analyse the influence of compounds present in different fractions of the membrane foulants. The aim of this study was to reveal the changing chemistry of compounds present in membrane foulant with the evolution of time. Membrane fouling in a side stream membrane bioreactor (MBR) reactor was investigated. Constant flux filtration was employed in an MBR operation. Air bubbles were injected at 2 m3 h-1 m-2 for six different durations (2, 4, 6, 9, 15 and 20 days) of MBR operation. The foulant on the membrane surface was extracted using NaOH solution (5%) and analysed using fluorescent spectroscopy. The spectra showed the changing chemistry of foulant with the evolution of time. It showed low molecular weight substances such as amino acids and small aromatic proteins were dominant in the foulant at the beginning of the experiment but its concentration decreased with time. On the other hand BOD5 type substances concentration increased with time from the beginning of the experiment up to 9 days and there after decreased. The concentration of larger molecular weight soluble microbial by-products increased with evolution of time. Air bubbles at two aeration rate of 1mm3 h-1 m-2 and 2 mm3 h-1 m-2 were also injected from the bottom of the membrane tanks to produce shear stresses on the membrane surface during 5 days of MBR operation to compare the effect of aeration in fouling propensity. © 2009, Taylor & Francis Group, LLC.	en_US
dc.relation.ispartof	Desalination and Water Treatment	en_US
dc.relation.isbasedon	10.5004/dwt.2009.647	en_US
dc.title	Temporal variation of foulant characteristics in membrane bioreactor	en_US
dc.type	Journal Article
utslib.citation.volume	1-3	en_US
utslib.citation.volume	6	en_US
utslib.for	0907 Environmental Engineering	en_US
utslib.for	0904 Chemical Engineering	en_US
utslib.for	0905 Civil Engineering	en_US
dc.location.activity	Sydney, Australia
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	open_access
pubs.issue	1-3	en_US
pubs.publication-status	Published	en_US
pubs.volume	6	en_US

Abstract:

Many studies have been performed to analyse the influence of compounds present in different fractions of the membrane foulants. The aim of this study was to reveal the changing chemistry of compounds present in membrane foulant with the evolution of time. Membrane fouling in a side stream membrane bioreactor (MBR) reactor was investigated. Constant flux filtration was employed in an MBR operation. Air bubbles were injected at 2 m3 h-1 m-2 for six different durations (2, 4, 6, 9, 15 and 20 days) of MBR operation. The foulant on the membrane surface was extracted using NaOH solution (5%) and analysed using fluorescent spectroscopy. The spectra showed the changing chemistry of foulant with the evolution of time. It showed low molecular weight substances such as amino acids and small aromatic proteins were dominant in the foulant at the beginning of the experiment but its concentration decreased with time. On the other hand BOD5 type substances concentration increased with time from the beginning of the experiment up to 9 days and there after decreased. The concentration of larger molecular weight soluble microbial by-products increased with evolution of time. Air bubbles at two aeration rate of 1mm3 h-1 m-2 and 2 mm3 h-1 m-2 were also injected from the bottom of the membrane tanks to produce shear stresses on the membrane surface during 5 days of MBR operation to compare the effect of aeration in fouling propensity. © 2009, Taylor & Francis Group, LLC.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/9186