Journal
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
Volume 102, Issue -, Pages 214-228Publisher
ELSEVIER
DOI: 10.1016/j.psep.2016.03.011
Keywords
Polysulfone; Ultrafiltration; Bentonite nanoparticles; Grafting; Oil field oily wastewater; Membrane fouling
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Funding
- [FRS (29)/2010-2011/PE]
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In this study, polysulfone based mixed-matrix ultrafiltration membranes were prepared by blending polysulfone with different polymer-grafted bentonite additives. Formation of polymer-grafted bentonite was confirmed by Fourier transformed infra-red spectroscopy, energy-dispersive X-ray and thermal gravimetric analysis. Membranes were fabricated via wet phase inversion process with varying additive concentration. Hydrophilicity and structural changes of grafted polysulfone membranes were investigated by scanning electron microscope, water contact angle, molecular weight cut-off and pure water flux measurement. Prepared polysulfone/polymer grafted bentonite membrane was used for the separation of oil from oil-field oily wastewater and the membrane performance was evaluated in terms of permeate flux, oil rejection and fouling characteristics. Finally, results were compared with plain polysulfone and polysulfone/bentonite ultrafiltration membranes. (C) 2016 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
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