Understanding the fouling of UF/MF hollow fibres of biologically treated wastewaters using advanced EfOM characterization and statistical tools

► Coupling of EEM and LC-OCD predicts the fouling potential of secondary effluents. ► Identification of the OM characteristics responsible for a high fouling potential. ► Correlation between protein content indicators and a high fouling potential. ► Differentiation of HS from terrestrial origin and...

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Bibliographic Details
Published in:Bioresource technology 2012-08, Vol.118, p.460-468
Main Authors: Filloux, E., Labanowski, J., Croue, J.P.
Format: Article
Language:English
Subjects:
Biodegradation, Environmental
Biofouling
Carbon - analysis
Catalysis
Chemical Sciences
Chromatography, Gel
Chromatography, Liquid
Effluent organic matter
Effluents
Feasibility
Fibres
Fluorescence
Fluorescence spectroscopy
Fouling
Membrane fouling
Membranes, Artificial
Models, Statistical
Molecular Weight
Nitrogen - analysis
Organic Chemicals - analysis
Organic chemistry
Other
Principal Component Analysis
Rivers
Secondary effluent
Size exclusion chromatography
Spectrometry, Fluorescence - methods
Ultrafiltration - methods
Ultraviolet Rays
Waste Disposal, Fluid
Waste water
Water Purification - methods
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Summary:► Coupling of EEM and LC-OCD predicts the fouling potential of secondary effluents. ► Identification of the OM characteristics responsible for a high fouling potential. ► Correlation between protein content indicators and a high fouling potential. ► Differentiation of HS from terrestrial origin and HS produced in biological reactors. ► Impact of biological treatment on the EfOM composition by OM characterization. Five secondary effluents and a river water source were characterized using size exclusion chromatography (LC-OCD-UVD-OND) and emission–excitation matrix (EEM) fluorescence spectroscopy in order to identify the major effluent organic matter (EfOM) fractions responsible for membrane fouling. This study showed the feasibility of coupling fluorescence EEM and LC-OCD-UVD-OND to investigate the fouling potential as well as a means to differentiate natural organic matter (NOM) from EfOM. The secondary effluents and river water showed a significant difference in organic matter characteristics and fouling potential, highlighting the importance of biological processes and the feed water source on EfOM characteristics and fouling potential. On the basis of statistical analysis, protein-like substances were found to be highly correlated to the fouling potential of secondary effluents.
ISSN:0960-8524
1873-2976
DOI:10.1016/j.biortech.2012.05.081