Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Preparation of Inorganic/Organic Reverse Osmosis Composite Membrane and Its Performance for Desalination of Deep Ocean Water

유·무기계 역삼투 복합막의 제조와 해양심층수의 기능화 특성분석

  • 임경빈 ((주)선진인더스트리 기업부설연구소) ;
  • 홍영기 (건양대학교 패션디자인산업학과)
  • Received : 2013.08.02
  • Accepted : 2013.10.05
  • Published : 2013.10.31
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Abstract

In this study, a microfilter medium was prepared using a melt-blown system and used as a pre-filter in a reverse osmosis (RO) separation system. Asymmetric RO composite membranes, which are inorganic/organic-reverse osmosis (IPO-RO) membranes composed of polysulfone and polyamide with tourmaline nanoparticles, have been designed to develop a new desalination membrane showing high selectivity and permeability. The practical separation performance of IPO-RO composite membranes was investigated for the desalination of seawater, especially for deep ocean water. The separation characteristics of IPO-RO composite membranes were discussed by changing some parameters such as applied pressure and temperature. The permeation flux of the IPO-RO composite membranes was investigated using a module composed of RO plate-frame and spiral wound units. The solute rejection and flux for the IPO-RO composite membrane were 99.0-99.4% and 7.4-23.3 $L/m^2{\cdot}h$ in deep ocean water at $20^{\circ}C$, respectively. Further, the separation performance of the IPO-RO composite membrane for deep ocean water was very steady-state for a long time. Remarkably, the solution permeated through the IPO-RO composite membrane matched drinking water standards.

Keywords

References

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