Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
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Effect of Support Membrane Property on Performance of Forward Osmosis Membrane

지지체 특성이 정삼투막 성능에 미치는 영향

  • 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)
  • 정보름 (한국화학연구원 환경자원연구센터) ;
  • 김종학 (연세대학교 화공생명공학과) ;
  • 김범식 (한국화학연구원 환경자원연구센터) ;
  • 박유인 (한국화학연구원 환경자원연구센터) ;
  • 송두현 (한국화학연구원 환경자원연구센터) ;
  • 김인철 (한국화학연구원 환경자원연구센터)
  • Received : 2010.08.17
  • Accepted : 2010.09.17
  • Published : 2010.09.30
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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.

본 연구의 목적은 각기 다른 특성을 갖는 지지체에 따른 정삼투막의 성능을 비교 빛 평가하는 것이다. 계변 중합을 통하여 소수성 지지체인 폴리술폰(PSf)과 상대적으로 친수성 지지체인 폴리에테르술폰(PES)의 표변에 폴리아미드 활성층을 갖는 정삼투막을 제조하여 투과유량과 역확산을 비교하였다. PSf 정삼투막과 PES 정삼투막의 투과유량은 $4.36\;L/m^2hr$와 $17.8\;L/m^2hr$으로 PES를 지지체로 하는 정삼투막이 투과성능이 더 우수함을 알 수 있었으며, 이를 통해 지지체의 친수성과 정삼투 공정에서의 투과성능 간에 관련성이 존재함을 확인할 수 있었다. 또한 막의 두께가 앓아질수록 정삼투 공정에서 막의 투과유량은 증가하였다.

Keywords

References

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