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Article

Filterability of Polysulfone Membrane in a Tilted Panel System for Activated Sludge Filtration

1
Department of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak 32610, Malaysia
2
Department of Chemical Engineering, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
3
Department of Chemical Engineering, HICOE-Center of Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak 32610, Malaysia
4
Advanced Membrane Technology Research Center (AMTEC), School of Chemical and Energy Engineering (SCEE), Universiti Teknologi Malaysia (UTM), Johor 81310, Malaysia
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Research Center for Environmental and Natural Resources, Universitas Syiah Kuala, Jl. Hamzah Fansuri, No. 4, Darussalam, Banda Aceh 23111, Indonesia
6
Atsiri Research Center, PUI, Universitas Syiah Kuala, Darussalam, Banda Aceh 23111, Indonesia
*
Authors to whom correspondence should be addressed.
Water 2020, 12(12), 3533; https://doi.org/10.3390/w12123533
Received: 15 November 2020 / Accepted: 4 December 2020 / Published: 16 December 2020
(This article belongs to the Special Issue Membrane Filtration for Water Reuse)
Membrane bioreactors (MBRs) are established technology for treatment of domestic and industrial wastewater because they offer a small footprint and high quality of effluent, in addition to lower excess sludge. However, their widespread applications are still limited by higher expenditure for compensating for membrane fouling. In this study, polysulfone (PSF)-based ultrafiltration membranes were developed and integrated with a tilted panel system for fouling control in activated sludge filtration. The results show an enhanced performance of filtration system thanks to the mutual advantage of the tilted panel system and the membrane properties. Both membranes showed a clear trend of higher permeability with respect to the tilted panel parameters, namely, higher tilting angle, higher aeration rate, and shorter intermittent/switching period. PSF-1 (1 wt% polyethylene glycol (PEG) additive) shows significantly better performance than PSF-3 (3 wt% PEG additive) although their mean flow pore size, structural properties, and contact angle do not differ significantly. PSF-1 shows superior filterability performance of about 45% for panel tilting angles of 20° at an aeration rate of 1.8 L·min−1, and 11% for a switching period of 1 min compared with PSF-3. The key property enhancing the performance of the PSF-1 is its narrower distribution of pore size. Overall results suggest that an optimum system could be achieved by optimizing both the filtration system and the membrane material properties. View Full-Text
Keywords: membrane fouling control; activated sludge; tilted membrane panel; membrane bioreactor; polysulfone membrane fouling control; activated sludge; tilted membrane panel; membrane bioreactor; polysulfone
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MDPI and ACS Style

Ismail, A.A.A.; Mulyati, S.; Aprilia, S.; Yusoff, M.H.M.; Nawi, N.I.M.; Bilad, M.R.; Ismail, A.F.; Arahman, N. Filterability of Polysulfone Membrane in a Tilted Panel System for Activated Sludge Filtration. Water 2020, 12, 3533. https://doi.org/10.3390/w12123533

AMA Style

Ismail AAA, Mulyati S, Aprilia S, Yusoff MHM, Nawi NIM, Bilad MR, Ismail AF, Arahman N. Filterability of Polysulfone Membrane in a Tilted Panel System for Activated Sludge Filtration. Water. 2020; 12(12):3533. https://doi.org/10.3390/w12123533

Chicago/Turabian Style

Ismail, Ahmad A.A., Sri Mulyati, Sri Aprilia, Mohd H.M. Yusoff, Normi I.M. Nawi, Muhammad R. Bilad, Ahmad F. Ismail, and Nasrul Arahman. 2020. "Filterability of Polysulfone Membrane in a Tilted Panel System for Activated Sludge Filtration" Water 12, no. 12: 3533. https://doi.org/10.3390/w12123533

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