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Effect of Support Membrane Property on Performance of Forward Osmosis Membrane  

Jeong, Bo-Reum (Environment & Resources Research Center, Korea Research Institute of Chemical Technology)
Kim, Jong-Hak (Department of Chemical & Biomolecular Engineering, Yonsei University)
Kim, Beom-Sik (Environment & Resources Research Center, Korea Research Institute of Chemical Technology)
Park, Yoo-In (Environment & Resources Research Center, Korea Research Institute of Chemical Technology)
Song, Du-Hyun (Environment & Resources Research Center, Korea Research Institute of Chemical Technology)
Kim, In-Chul (Environment & Resources Research Center, Korea Research Institute of Chemical Technology)
Publication Information
Membrane Journal / v.20, no.3, 2010 , pp. 235-240 More about this Journal
Abstract
The aim of this paper is to evaluate and compare the performances of forward osmosis (FO) membranes using different materials. The FO membranes were synthesized using interfacial polymerization method on hydrophobic polysulfone (PSf) and relatively hydrophilic polyethersulfone (PES) supports. The FO performance such as flux and back diffusion was measured. The resulting fluxes of PSf and PES FO membranes were $4.3\;L/m^2hr$ and $17.8\;L/m^2hr$, respectively. The flux of the PES FO membrane was higher than that of the PSf FO membrane. The results indicated that hydrophillictity of the support membrane is important for increasing flux in FO process. Moreover, with decreasing the support layer thickness, flux increased considerably.
Keywords
forward osmosis membrane; support; interfacial polymerization; flux; back diffusion;
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