Advances in Membrane Bioreactor: High Performance and Antifouling Configurations
2022
Siagian, Utjok Welo Risma | Khoiruddin, Khoiruddin | Ting, Yen Peng | Boopathy, Ramaraj | Wenten, I Gede
PURPOSE OF REVIEW: This paper reviews recent advances in a membrane bioreactor (MBR) and focuses on the features and performance of MBR configurations. Special attention is given to MBR configurations developed for improving pollutant removal and fouling control. RECENT FINDINGS: The first development discussed in this review is related to pollutant removal. Modified MBR configuration can enhance pollutant removals, such as those observed in baffled, osmotic, aerobic granular sludge, and electric field-assisted MBR. In addition, fouling is still the major problem in MBR applications. Fouling affects membrane performance stability as well as operational and capital costs. Several new MBR configurations have been developed to address fouling issues. By using dynamic membrane and free-moving particles, these new configurations make MBR operation more stable with fewer cleaning operations. In addition, lower cleaning frequency will decrease operational expenditure and capital investment. Due to their unique features, newly developed MBR configurations are proved to display high pollutant removal in wastewater treatment. Meanwhile, MBR with dynamic membranes and moving particles can decrease membrane fouling due to mechanically induced shear with lower energy consumption than shear by conventional aeration.
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