Characterization of soluble microbial products and their fouling impacts in membrane bioreactors

Handle URI:
http://hdl.handle.net/10754/561517
Title:
Characterization of soluble microbial products and their fouling impacts in membrane bioreactors
Authors:
Jiang, Tao; Kennedy, Maria Dolores; Schepper, Veerle D.; Nam, Seongnam; Nopens, Ingmar; Vanrolleghem, Peter A.; Amy, Gary L.
Abstract:
Membrane bioreactor (MBR) fouling is not only influenced by the soluble microbial products (SMP) concentration but by their characteristics. Experiments of separate producing biomass associated products (BAP) and utilization associated products (UAP) allowed the separation of BAP and UAP effects from sludge water (SW). Thus, filtration of individual SMP components and further characterization becomes possible. Unstirred cell filtration was used to study fouling mechanisms and liquid chromatography-organic carbon detection (LC-OCD) and fluorescence excitation-emission matrix (EEM) were used to characterize the foulant. Generally, the SMP exhibiting characteristics of higher molecular weight, greater hydrophilicity and a more reduced state showed a higher retention percentage. However, the higher retention does not always yield higher fouling effects. The UAP filtration showed the highest specific cake resistance and pore blocking resistance attributed to their higher percentage of low molecular weight molecules, although their retention percentage was lower than the SW and BAP filtration. The UAP produced in the cell proliferation phase appeared to have the highest fouling potential. © 2010 American Chemical Society.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division
Publisher:
American Chemical Society (ACS)
Journal:
Environmental Science & Technology
Issue Date:
Sep-2010
DOI:
10.1021/es100442g
PubMed ID:
20704277
Type:
Article
ISSN:
0013936X
Appears in Collections:
Articles; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorJiang, Taoen
dc.contributor.authorKennedy, Maria Doloresen
dc.contributor.authorSchepper, Veerle D.en
dc.contributor.authorNam, Seongnamen
dc.contributor.authorNopens, Ingmaren
dc.contributor.authorVanrolleghem, Peter A.en
dc.contributor.authorAmy, Gary L.en
dc.date.accessioned2015-08-02T09:13:16Zen
dc.date.available2015-08-02T09:13:16Zen
dc.date.issued2010-09en
dc.identifier.issn0013936Xen
dc.identifier.pmid20704277en
dc.identifier.doi10.1021/es100442gen
dc.identifier.urihttp://hdl.handle.net/10754/561517en
dc.description.abstractMembrane bioreactor (MBR) fouling is not only influenced by the soluble microbial products (SMP) concentration but by their characteristics. Experiments of separate producing biomass associated products (BAP) and utilization associated products (UAP) allowed the separation of BAP and UAP effects from sludge water (SW). Thus, filtration of individual SMP components and further characterization becomes possible. Unstirred cell filtration was used to study fouling mechanisms and liquid chromatography-organic carbon detection (LC-OCD) and fluorescence excitation-emission matrix (EEM) were used to characterize the foulant. Generally, the SMP exhibiting characteristics of higher molecular weight, greater hydrophilicity and a more reduced state showed a higher retention percentage. However, the higher retention does not always yield higher fouling effects. The UAP filtration showed the highest specific cake resistance and pore blocking resistance attributed to their higher percentage of low molecular weight molecules, although their retention percentage was lower than the SW and BAP filtration. The UAP produced in the cell proliferation phase appeared to have the highest fouling potential. © 2010 American Chemical Society.en
dc.publisherAmerican Chemical Society (ACS)en
dc.titleCharacterization of soluble microbial products and their fouling impacts in membrane bioreactorsen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.identifier.journalEnvironmental Science & Technologyen
dc.contributor.institutionBIOMATH, Ghent University, Coupure Links 653, B-9000 Gent, Belgiumen
dc.contributor.institutionUNESCO-IHE Institute for Water Education, PO Box 3015, 2601 DA Delft, Netherlandsen
dc.contributor.institutionModelEAU, Département de Génie Civil et Génie des Eaux, Université Laval, Québec, QC G1 V 0A6, Canadaen
dc.contributor.institutionDepartment of Civil, Environmental and Architectural Engineering, University of Colorado, Boulder, CO 85302, United Statesen
dc.contributor.institutionENVIRON China, New Hualian Mansion East Bldg, No.755 Huaihai Road (M), Shanghai 200020, Chinaen
kaust.authorAmy, Gary L.en
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.