Surface modification of a ceramic membrane by thin-film deposition methods for fouling control in anaerobic MBR

D. Jahangir*, T. Leiknes, KAUST King Abdullah University of Science and Technology, Saudi Arabia

Membrane fouling, which is caused by deposition or adsorption of foulants on surface or within membrane pores, still remains a bottleneck that hampers the widespread application of MBR technology for wastewater treatment [1] [2]. Recently membrane surface coating has proved to be a useful method in water treatment to improve surface hydrophilicity of membranes to obtain high water flux and to reduce fouling [3]. Due to its anti-fouling properties, TiO2 is well known as a membrane surface coating material in water applications. In this study, thin film of same thickness of TiO2 was deposited over UF alumina membrane surfaces (average surface pore size = 80 nm) by sputtering, electron-beam deposition and hydrothermal growth. Basic objective of this research was to conduct a comparative study of fouling inhibition performance of these modified membranes in a lab-scale anaerobic membrane bioreactor (AnMBR) for wastewater treatment.

BSA adsorption and clean water permeability tests were conducted for virgin and modified membranes. Thorough material characterization of virgin & all modified membranes was done by contact angle measurement, AFM, SEM and TEM analysis. When all of these modified membranes were applied in constant-flux AnMBR filtration system, they showed...

Session: M7 - Process and Waste Water Treatment II
Day: 15 March 2018
Time: 13:00 - 14:15 h

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