TY - JOUR
T1 - Integrated approach to characterize fouling on a flat sheet membrane gravity driven submerged membrane bioreactor
AU - Fortunato, Luca
AU - Jeong, Sanghyun
AU - Wang, Yiran
AU - Behzad, Ali Reza
AU - Leiknes, TorOve
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This study was supported by funding from King Abdullah University of Science and Technology (KAUST).
PY - 2016/10/7
Y1 - 2016/10/7
N2 - Fouling in membrane bioreactors (MBR) is acknowledged to be complex and unclear. An integrated characterization methodology was employed in this study to understand the fouling on a gravity-driven submerged MBR (GD-SMBR). It involved the use of different analytical tools, including optical coherence tomography (OCT), liquid chromatography with organic carbon detection (LC-OCD), total organic carbon (TOC), flow cytometer (FCM), adenosine triphosphate analysis (ATP) and scanning electron microscopy (SEM). The three-dimensional (3D) biomass morphology was acquired in a real-time through non-destructive and in situ OCT scanning of 75% of the total membrane surface directly in the tank. Results showed that the biomass layer was homogeneously distributed on the membrane surface. The amount of biomass was selectively linked with final destructive autopsy techniques. The LC-OCD analysis indicated the abundance of low molecular weight (LMW) organics in the fouling composition. Three different SEM techniques were applied to investigate the detailed fouling morphology on the membrane. © 2016 Elsevier Ltd
AB - Fouling in membrane bioreactors (MBR) is acknowledged to be complex and unclear. An integrated characterization methodology was employed in this study to understand the fouling on a gravity-driven submerged MBR (GD-SMBR). It involved the use of different analytical tools, including optical coherence tomography (OCT), liquid chromatography with organic carbon detection (LC-OCD), total organic carbon (TOC), flow cytometer (FCM), adenosine triphosphate analysis (ATP) and scanning electron microscopy (SEM). The three-dimensional (3D) biomass morphology was acquired in a real-time through non-destructive and in situ OCT scanning of 75% of the total membrane surface directly in the tank. Results showed that the biomass layer was homogeneously distributed on the membrane surface. The amount of biomass was selectively linked with final destructive autopsy techniques. The LC-OCD analysis indicated the abundance of low molecular weight (LMW) organics in the fouling composition. Three different SEM techniques were applied to investigate the detailed fouling morphology on the membrane. © 2016 Elsevier Ltd
UR - http://hdl.handle.net/10754/622210
UR - http://www.sciencedirect.com/science/article/pii/S0960852416313943
UR - http://www.scopus.com/inward/record.url?scp=84991728136&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2016.09.127
DO - 10.1016/j.biortech.2016.09.127
M3 - Article
C2 - 27741471
SN - 0960-8524
VL - 222
SP - 335
EP - 343
JO - Bioresource Technology
JF - Bioresource Technology
ER -