Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
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Preparation of Cellulose Acetate Membrane and Its Evaluation as a Forward Osmosis Membrane

셀룰로오스 아세테이트 분리막 제조 및 정삼투 성능 평가

  • Ahn, Hyeryun (Doosan Heavy Industry) ;
  • Kim, Jinhong (LG Electronics) ;
  • Kwon, Young-Nam (School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology (UNIST))
  • Received : 2014.03.30
  • Accepted : 2014.04.29
  • Published : 2014.04.30
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Abstract

In this study, cellulose acetate (CA) membrane was prepared by phase inversion precipitation and then evaluated the forward osmosis (FO) membrane performance. Differences in water flux and salt rejection between RO and FO with prepared membranes were observed. The different structure membranes were prepared with various solvent which evaluate the influence of membrane structure on permeability. The structure of the prepared membrane was confirmed through scanning electron microscopy (SEM) and the permeability changes were estimated using the bench-scale FO test equipment.

본 연구에서는 셀룰로오즈 아세테이트(Cellulose acetate)를 이용하여 정삼투막을 제조하였으며 분리막 성능평가를 진행하였다. 분리막의 염제거율과 정삼투 공정에서의 투과성능 변화의 상관관계를 규명하기 위해 각기 다른 염제거율을 가지는 분리막을 제조하고 정삼투 장치를 이용하여 막 투과 성능을 평가하였다. 분리막의 구조가 정삼투 투과성능에 미치는 영향을 알아보기 위해 각기 다른 용매를 이용하여 분리막을 제조하였다. 또한 제조된 분리막의 구조는 주사전자현미경(scanning electron microscopy)을 통해서 확인하였으며 정삼투 장치 운전을 통해 투과성능 변화를 알아보았다.

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References

  1. E. O. Ko, J. D. Moon, and J. M. Park, "Status-of-arts of Desalination Technology", Membrane Journal, 20(3) (2010).
  2. B. R. Jeong, J. H. Kim, B. S. Kim, Y. I. Park, D. H. Song, and I. C. Kim, "Effect of Support Membrane Property on Performance of Forward Osmosis Membrane", Membrane Journal, 20(3) (2010).
  3. S. Loeb, "Osmotic power plants", Science, 189, 350 (1974).
  4. K. L. Lee, R. W. Baker, and H. K. Lonsdale, "Membranes for power generation by pressure-retarded osmosis", J. Membr. Sci., 8, 141-171 (1981). https://doi.org/10.1016/S0376-7388(00)82088-8
  5. T. Cath, A. Childress, and M. Elimelech, "Forward osmosis : principles, application, and recent developments", J. Membr. Sci., 281, 70-87 (2006). https://doi.org/10.1016/j.memsci.2006.05.048
  6. A. Achilli, T. Cath, and A. childress, "Power generation with retarded osmosis : An experimental and theoretical investigation", J. Membr. Sci., 343, 42-52 (2009). https://doi.org/10.1016/j.memsci.2009.07.006
  7. B. Ravindra Babu, N. K. Rastogi, and K. S. M. S. Raghavarao, "Effect of process parameters on transmembrane flux during direct osmosis", J. Membr. Sci., 280, 185-194 (2006). https://doi.org/10.1016/j.memsci.2006.01.018
  8. R. E. Kravath and J. A. Davis, "Desalination of seawater by direct osmosis", Desalination, 16, 151-155 (1975). https://doi.org/10.1016/S0011-9164(00)82089-5
  9. J. O. Kessler and C. D. Moody, "Drinking water from sea water by forward osmosis", Desalination, 18, 297-306, (1976). https://doi.org/10.1016/S0011-9164(00)84119-3
  10. J. R. McCutcheon, R. L. McGinnis, and M. Elimelech, "A novel ammonia-carbon dioxide forward (direct) osmosis desalination process", Desalination, 174, 1-11 (2005). https://doi.org/10.1016/j.desal.2004.11.002
  11. G. D. Mehta and S. Loeb, "Internal polarization in the porous substructure of a semi-permeable membrane under pressure-retarded osmosis", J. Membr. Sci., 4, 261-265 (1978). https://doi.org/10.1016/S0376-7388(00)83301-3
  12. J. R. McCutcheon, R. L. McGinnis, and M. Elimelech, "Desalination by a novel ammonia-carbon dioxide forward osmosis process: influence of draw and feed solution concentrations on process performance", J. Membr. Sci., 278, 114-123 (2006). https://doi.org/10.1016/j.memsci.2005.10.048
  13. G. Gray, J. McCutcheon, and M. Elimelech, "Internal concentration polarization in forward osmosis : role of membrane orientation", Desalination, 197, 1-8 (2006). https://doi.org/10.1016/j.desal.2006.02.003
  14. J. McCutcheon and M. Elimelech, "Influence of concentrative and dilutive internal concentration polarization on flux behavior in forward osmosis", J. Membr. Sci., 284, 237-247 (2006). https://doi.org/10.1016/j.memsci.2006.07.049
  15. J. McCutcheon and M. Elimelech, "Influence of membrane support layer hydrophobicity on water flux in osmotically driven membrane processes", J. Membr. Sci., 318, 458-466 (2008). https://doi.org/10.1016/j.memsci.2008.03.021
  16. M. Qtaishat, M. Khayet, and T. Matsuura, "Novel porous composite hydrophobic/hydrophilic polysulfone membranes for desalination by direct contact membrane distillation", J. Membr. Sci., 341, 139-148 (2009). https://doi.org/10.1016/j.memsci.2009.05.053
  17. S. H. Ahn, I. C. Kim, D. H. Song, J. G. Jegal, Y. N. Kwon, and H. W. Rhee, "Pore Structure and Separation Properties of Thin Film Composite Forward Osmosis Membrane with Different Support Structures", Membrane Journal, 23(3) (2013).
  18. E. Gracia-Castello, J. McCutcheon, and M. Elimelech, "Performance evaluation of sucrose concentration using forward osmosis", J. Membr. Sci., 338, 61-66 (2009). https://doi.org/10.1016/j.memsci.2009.04.011