Performance of surface modified polyethersulfone membranes for ultrafiltration of aquatic humic substances

Susanto, Heru and Ulbricht, Mathias (2012) Performance of surface modified polyethersulfone membranes for ultrafiltration of aquatic humic substances. Desalination, 199 (Issue 1-3). pp. 384-386. ISSN 0011-9164

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Abstract

Many studies have been devoted to mem-brane fouling caused by humic substances (e.g. [1]). However, there are still many consid-erable disagreements about the characteristics and mechanisms of fouling during filtration. Moreover, control of that fouling is still the big challenge. Therefore, it would be desirable having available high-performance membranes with a pronounced and stable resistance towards fouling with humic substances. Surface modifi-cation has been proposed as a most versatile method to reduce the fouling. Membrane modi-fication using negatively charge monomer to reduce the fouling tendency during NOM removal was reported [2]. However, charge based interaction is strongly dependent on the pH and the ionic content of the solution. There-fore, hydrophilization of polymeric membranes with a neutral polymer to produce low-fouling membrane has been considered as a promising approach. This paper presents investigations of the fouling behavior of humic substances obtained by studies of membrane-solute and membrane–solute–solute interactions. Further, a surface modification of polyethersulfone (PES) ultrafiltration (UF) membranes via photograft copolymerization [3] has been evaluated. The target of this modification is to obtain a thin-layer polymer hydrogel composite PES-based UF membrane with the permeability and select-ivity similar to the commercial 10 kDa PES membrane, but having a lower fouling tendency.

Item Type:Article
Subjects:T Technology > TP Chemical technology
Divisions:Faculty of Engineering > Department of Chemical Engineering
Faculty of Engineering > Department of Chemical Engineering
ID Code:36333
Deposited By:Dr. Heru Susanto
Deposited On:11 Oct 2012 13:55
Last Modified:16 Nov 2012 22:40

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