Impact of Magnetically Induced Vibration on the Performance of Pilot-Scale Membrane Bioreactor


Kaya R., Tirol N., Özgün Erşahin H., Erşahin M. E. , Tarabara V. V. , YİĞİT N. Ö. , ...Daha Fazla

JOURNAL OF ENVIRONMENTAL ENGINEERING, cilt.146, 2020 (SCI İndekslerine Giren Dergi) identifier identifier

Özet

Membrane bioreactors (MBRs) have been gaining acceptance as the best available technology for treating domestic and industrial wastewater. Relatively high operational costs, however, limit a broader adoption of MBRs. Air scouring, which is commonly used as a strategy to alleviate membrane fouling, suffers from inherent limitations such as low shear at the membrane surface. Vibration-based approaches offer promise as alternative or complementary methods of fouling mitigation. In this study, we evaluated magnetically induced membrane vibration (MMV) as a means of controlling membrane fouling in a pilot-scale MBR equipped with reinforced hollow-fiber membranes. Two vibration frequencies (30 and 150 Hz) were tested at a subcritical permeate flux of 26 L/(m2 center dot h). Membrane vibration retarded the transmembrane pressure buildup and saved similar to 8% of the costs associated with chemical and energy consumption.