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http://dx.doi.org/10.14579/MEMBRANE_JOURNAL.2018.28.2.83

Evaluation of the Flux According to Membrane Distillation Module Structure and Operating Conditions Using PVDF Hollow Fiber Membrane  

Min, Ji Hee (Econity co., Ltd., R&D Technology center)
Lee, Seul ki (Econity co., Ltd., R&D Technology center)
Gil, Nam Seok (Econity co., Ltd., R&D Technology center)
Park, Min Soo (Econity co., Ltd., R&D Technology center)
Kim, Jin Ho (Econity co., Ltd., R&D Technology center)
Publication Information
Membrane Journal / v.28, no.2, 2018 , pp. 83-89 More about this Journal
Abstract
Hydrophobic porous PVDF hollow fiber membranes for Membrane Distillation (MD) were fabricated by a combination of thermally induced phase separation (TIPS) and stretching. The purpose of this study is to investigate the shape and operating conditions of the module and the effect of piping size on parallel connection. In the optimization experiment of the vacuum membrane distillation module, the flux decreased as the packing density and length of the membrane in the module increased. When the module was connected vertically, it was confirmed that the nearest to the inlet of the vacuum port was the highest flux. In selecting the size of the header pipe of the module, it was confirmed that the maximum flux is shown when the inner diameter area of the hollow fiber membrane and the inner diameter area of the header pipe are the same. Also, it is necessary to find the optimal linear velocity because the higher the linear velocity in the module, the higher the flux, but the pressure acting on the module also increases proportionally.
Keywords
PVDF hollow fiber membrane; membrane distillation module; length; packing density; header;
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Times Cited By KSCI : 3  (Citation Analysis)
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1 M. Khayet, P. Godino, and J. I. Mengual, "Nature of flow on sweeping gas membrane distillation", J. Membr. Sci., 170, 243 (2000).   DOI
2 H. W. Cho and W. C. Shin, "The prospect of membrane distillation", Membr. J., 7, 57 (1997).
3 S. Nene, S. Kaur, K. Sumod, B. Joshi, and K. S. M. S. Raghavarao, "Membrane distillation for the concentration of raw-cane sugar syrup and membrane clarified sugarcane juice", Desalination, 147, 157 (2002).   DOI
4 A. Banat and J. Simandl, "Membrane distillation for dilute ethanol: separation from aqueous streams", J. Membr. Sci., 163, 333 (1999).   DOI
5 M. Gryta, M. Tomaszewska, J. Grzechulska, and A. W. Morawski, "Membrane distillation of NaCl solution containing organic matter", J. Membr. Sci., 181, 279 (2001).   DOI
6 H. Liu and J. Wang, "Treatment of radioactive wastewater using direct contact membrane distillation", J. Hazard. Mater., 261, 307 (2013).   DOI
7 H. Udriot, A. Araque, and U. Von Stokar, "Azeotropic mixtures may be broken by membrane distillation", Chem. Eng. J., 54, 87 (1994).
8 H. J. Joo and H. Y. Kwak, "Freshwater production characteristics according to the feed sea water conditions of vacuum membrane distillation module for solar desalination", New&renewable energy, 12, 10 (2016).
9 H. C. Koo, "Study of removal of volatile ammonia and cyanide for treatment of industrial wastewater by membrane distillation", Master Dissertation, Univ. of Science and Technology (2016).
10 J. H. Min, M. S. Park, and J. H. Kim, "Preparation of hydrophobic porous PVDF membrane and application for membrane distillation", Membr. J., 24, 240 (2014).   DOI
11 D. H. Yu, M. A. Jeoung, J. W. Rhim, H. S. Byun, C. H. Jeong, Y. M. Lee, M. W. Seo, and S. Y. Nam, "Preparation and characterization of microporous PVDF membrane for Li-ion rechargeable battery", Membr. J., 17, 235 (2007).
12 J. H. Min, M. S. Park, and J. H. Kim, "Measurement of liquid entry pressure of PE and PVDF hollow fiber membranes in membrane distillation process", Membr. J., 25, 216 (2015).   DOI
13 H. Ji, S. Y. Yun, S. W. Lee, D. S. Moon, H. S. Lee, and H. J. Kim, "Condition of desalination with reduced pressure evaporation device", J. Korean Soc. Mar. Environ. Energyy, 17, 8 (2014).   DOI