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Antifouling improvement of polyethersulfone membrane incorporated with negatively charged zinc/iron oxide for at-pome colour removal

Subramaniam, M. N. and Goh, P. S. and Tan, Y. H. and Chiong, S. J. and Lau, W. J. and Ng, B. C. and Ismail, A. F. and Chuah, J. Y. and Lai, S. O. (2019) Antifouling improvement of polyethersulfone membrane incorporated with negatively charged zinc/iron oxide for at-pome colour removal. Arabian Journal for Science and Engineering, 44 (6). pp. 5571-5580. ISSN 2193-567X

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Official URL: http://dx.doi.org/10.1007/s13369-019-03858-y

Abstract

In this study, polyethersulfone (PES) hollow fibre membranes incorporated with different loadings of coupled zinc–iron oxide (ZIO) (0–2 wt%) nanoparticle were fabricated and used to remove the colour of aerobically treated palm oil mill effluent (AT-POME). The ZIO nanoparticles were synthesized via solution combustion method and characterized for their physicochemical properties. A specific amount of ZIO nanoparticles was then added into the PES dope solution followed by dry/wet-jet spinning technique to produce hollow fibre membrane of negatively charge surface properties. The membranes were characterized with respect to their cross-sectional morphology, hydrophilicity, tensile strength and surface charge. The separation performance of the membranes was then evaluated using pure water and AT-POME as feed solution. Results show that the membrane incorporated with 0.5 wt% ZIO was the best performing membrane, showing pure water flux and AT-POME flux of 2.46 and 2.0 L/m2 h, respectively, when tested at 1 bar. Furthermore, this membrane also showed reasonably good rejection against colour (76.2% reduction) and improved antifouling resistance.

Item Type:Article
Uncontrolled Keywords:colour removal, membrane, surface charge, ultrafiltration
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Energy Engineering
ID Code:88478
Deposited By: Yanti Mohd Shah
Deposited On:15 Dec 2020 08:06
Last Modified:15 Dec 2020 08:06

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