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Desalination and Water Treatment Volume 51, 2013 - Issue 13-15
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Articles

Coupling of physico-chemical treatment and steel membrane filtration to enhanced organic removal in wastewater treatment

M.A.H. Johir Faculty of Engineering and Information and Technology, University of Technology, Sydney, PO BOX 123, Broadway, NSW, 2007, Australia Phone: Tel. +61 2 9514 2641 Fax: Tel. +61 2 9514 2641
,
S. Vigneswaran Faculty of Engineering and Information and Technology, University of Technology, Sydney, PO BOX 123, Broadway, NSW, 2007, Australia Phone: Tel. +61 2 9514 2641 Fax: Tel. +61 2 9514 2641Correspondence[email protected]
,
J. Kandasamy Faculty of Engineering and Information and Technology, University of Technology, Sydney, PO BOX 123, Broadway, NSW, 2007, Australia Phone: Tel. +61 2 9514 2641 Fax: Tel. +61 2 9514 2641
&
R. Sleigh Steri-flow Filtration Systems (Aust) Pty Ltd., 2 Spencer Street, Rose Bay, NSW, 2029, Australia
Pages 2695-2701 | Received 15 Mar 2012, Accepted 09 Jul 2012, Published online: 02 Apr 2013
 
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Abstract

In this study, the application of steel membrane filtration was tested with the pre-treated wastewater. The pre-treatment methods tested before membrane filtration application were flocculation using FeCl3, Powdered Activated Carbon (PAC) adsorption, purolite ion-exchange column and purolite ion-exchange column followed by flocculation (FeCl3). The effect of two different modes of membrane application (cross-flow and dead-end modes) was examined. The ability of these filters in removing organic matters and solids were examined. It was found that the decline of flux was slightly lower for dead-end mode of operation to that of cross-flow mode of operation. Pre-treatment increased the performance of membrane filtration. The flux decline of raw water (without pre-treatment) was 31–40%, whereas after pre-treatment, it was about 2.5–21%. Pre-treatment followed by microfiltration (MF) showed 68–91% removal efficiency of dissolved organic carbon (DOC).

Acknowledgement

This research was funded by ARC (Discovery project).

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