상하수도학회지 (Journal of Korean Society of Water and Wastewater)

  • 제30권4호
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  • Pages.417-425
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  • 2016
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  • 1225-7672(pISSN)
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  • 2287-822X(eISSN)
대한상하수도학회 (The Korean Society of Water and Wastewater)
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랩스케일 정삼투실험을 통한 정삼투막의 수투과도 평가

Evaluation of water permeability of forward osmosis membranes using osmotically driven membrane test

  • Lee, Junseo (Department of civil engineering, Pukyong National University) ;
  • Kim, Suhan (Department of civil engineering, Pukyong National University)
  • 투고 : 2016.06.28
  • 심사 : 2016.08.04
  • 발행 : 2016.08.15
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초록

Desalination is a key technology to overcome water shortage problem in a near future. High energy consumption is an Achilles' heel in desalination technology. Osmotically driven membrane processes like forward osmosis(FO) was introduced to address this energy issue. Characterizing membrane properties such as water permeability(A), salt permeability(B), and the resistance to salt diffusion within the support layer($K_{ICP}$) are very important to predict the performance of scaled-up FO processes. Currently, most of researches reported that the water permeability of FO membrane was measured by reverse osmosis(RO) type test. Permeating direction of RO and FO are different and RO test needs hydraulic pressure so that several problems can be occurred(i.e. membrane deformation, compaction and effect of concentration polarization). This study focuses on measuring water permeability of FO membrane by FO type test results in various experimental conditions. A statistical approach was developed to evaluate the three FO membrane properties(A, B, and $K_{ICP}$) and it predicted test result by the internal and external concentration polarization model.

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참고문헌

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피인용 문헌

  1. Performance evaluation of forward osmosis (FO) hollow fiber module with various operating conditions vol.32, pp.4, 2018, https://doi.org/10.11001/jksww.2018.32.4.357
  2. Performance Analysis of a Spiral Wound Forward Osmosis Membrane Module vol.40, pp.12, 2018, https://doi.org/10.4491/KSEE.2018.40.12.481