Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
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Structure Parameter Change Estimation of a Forward Osmosis Membrane Under Pressurized Conditions in Pressure-assisted Forward Osmosis (PAFO)

가압형 정삼투 시 압력에 따른 정삼투막의 Structure Parameter 변화양상 예측

  • Kook, Seungho (Gwangju Institute of Science and Technology) ;
  • Kim, Sung-Jo (Gwangju Institute of Science and Technology) ;
  • Lee, Jinwoo (Gwangju Institute of Science and Technology) ;
  • Hwang, Moonhyun (School of Environmental Science and Engineering, Global Desalination Research Center) ;
  • Kim, In S. (School of Environmental Science and Engineering, Global Desalination Research Center)
  • 국승호 (광주과학기술원 환경공학부) ;
  • 김성조 (광주과학기술원 환경공학부) ;
  • 이진우 (광주과학기술원 환경공학부) ;
  • 황문현 (광주과학기술원 글로벌담수화연구센터) ;
  • 김인수 (광주과학기술원 글로벌담수화연구센터)
  • Received : 2016.03.08
  • Accepted : 2016.06.10
  • Published : 2016.06.30
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Abstract

Pressure-assisted forward osmosis (PAFO) process has recently been under spotlight for its potential to improve forward osmosis (FO) process performance by applying low hydraulic pressure on the feed side. Structure parameter, one of the governing factors in estimating water flux and solute flux across FO membranes in the solution-diffusion model (S-D model), determines solute resistivity in FO and PAFO processes. This study aims to estimate the trend of structure parameter change with respect to varying additional hydraulic pressure condition in PAFO.

최근 정삼투(FO) 공정의 성능향상을 위해 유입수에 낮은 수압을 가하는 가압형 정삼투(PAFO) 공정이 관심을 받고 있다. Structure parameter는 FO 및 PAFO 공정 운전시 유도용질의 확산 저항성(Solute resistivity)을 결정하며, 이는 Solution-diffusion model (S-D model)을 통한 수투과 및 염투과 성능 예측을 지배하는 인자 중에 하나이다. 본 연구는 S-D model을 이용하여 가압형 정삼투시 유입수 측에 가해지는 압력에 따른 Structure parameter 변화 양상을 예측하고자 하였다.

Keywords

References

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