Membrane fouling control using a rotary disk in a submerged anaerobic membrane sponge bioreactor

Title
Membrane fouling control using a rotary disk in a submerged anaerobic membrane sponge bioreactor
Authors
김정민신재원김혜민이정열윤민혁원세연이병찬송경근
Keywords
Anaerobic; Rotary disk; Polyurethane; Membrane fouling; Membrane bioreactor
Issue Date
2014-11
Publisher
Bioresource technology
Citation
VOL 172, 321-327
Abstract
Despite significant research efforts over the last few decades, membrane fouling in anaerobic membrane bioreactors (AnMBRs) remains an unsolved problem that increases the overall operational costs and obstructs the industrial applications. Herein, we developed a method for effectively controlling the membrane fouling in a sponge-submerged AnMBRs using an anaerobic rotary disk MBR (ARMBR). The disk rotation led the effective collision between the sponge and membrane surface; thus successfully enhanced the membrane permeability in the ARMBR. The effect of the disk rotational speed and sponge volume fraction on the membrane permeability and the relationship between the water flow direction and membrane permeability were investigated. The long-term feasibility was tested over 100 days of synthetic wastewater treatment. As a result, stable and economical performance was observed without membrane replacement and washing. The proposed integrated rotary disk-supporting media appears to be a feasible and even beneficial option in the AnMBR technology.
URI
http://pubs.kist.re.kr/handle/201004/48211
ISSN
09608524
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KIST Publication > Article
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