Rahmawati, Ratri (2025) Enhancing the efficiency of air bubbles using a finned panel spacer for membrane fouling control in activated sludge filtration. Results in Engineering, 26 (105098). ISSN 2590-1230

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Abstrak

Membrane fouling remains a critical challenge in membrane bioreactors (MBRS). The main objective of this study was to systematically investigate a newly developed finned spacer that direct air bubbles to enhance foulant scouring. Lab-scale tests and computational fluid dynamics (CFD) simulations revealed that the spacer enhanced permeability by 30 % (from 289.2 ± 2.1 to 396.3 ± 9.3 L m2 h-1 bar ̄1). This improvement was attributed to enhanced bubble-membrane contact and liquid recirculation, enabling effective cleaning at relatively low aeration (0.25 L min ̄1) and thus reducing energy demands. While smaller fin gaps optimized the bubble tra- jectory, it also slightly increased drag forces. Intermittent aeration further halved the energy use. Overall, the finned represents a cost-effective and energy-efficient strategy for mitigating membrane fouling in MBRs.

Item Type:	Article
Kata Kunci:	membrane fouling, membrane bioreactor, engineered spacer, dynamic system, wastewater treatment
Subjects:	Teknologi > Teknologi (umum)
Program Studi:	Fakultas Teknik > S1 Teknik Mesin
Depositing User:	MR Ratri Rahmawati
Date Deposited:	10 Jul 2025 01:36
Last Modified:	10 Jul 2025 01:36
URI:	http://eprints.umk.ac.id/id/eprint/24400

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