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Study on the Fouling Reduction of the RO Membrane by the Coating with an Anionic Polymer  

Cho, Eun Hye (Department of Chemical Engineering, Hannam University)
Cheong, Seong Ihl (Department of Chemical Engineering, Hannam University)
Rhim, Ji Won (Department of Chemical Engineering, Hannam University)
Publication Information
Membrane Journal / v.22, no.6, 2012 , pp. 481-488 More about this Journal
Abstract
The anionic exchange polymer, poly(vinyl amine)(PVAm), was coated onto polyamide (PA) reverse osmosis (RO) membranes by using 'salting-out' method. The effects of the fouling phenomena for these PVAm coated membranes were investigated using the model foulants, bovine serum albumin (BSA), humic acid (HA), and sodium alginate (SA). The surface coating and the fouling phenomena were observed by the scanning electron microscopy. And the flux was measured for each 100 ppm of above foulant aqueous solution at the operating pressure, 2, 4, 8 bar. The PVAm-coated PA membranes showed somewhat fouling improvements and the fouling reduction was shown in the order of HA > SA > BSA, particularly HA case was distinct.
Keywords
fouling; poly(vinyl amine); BSA (Albumin, from bovine serum); HA (humic acid sodium salt); SA (Alginic acid sodium salt);
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