Yu, Youngbeom Seo, Sunkeun Kim, In-Chul Lee, Seockheon 2024-01-20T17:00:46Z 2024-01-20T17:00:46Z 2021-09-04 2011-06-15 0376-7388 https://pubs.kist.re.kr/handle/201004/130263 A forward osmosis (FO) membrane process uses the natural phenomenon of osmosis, which occurs when two solutions of differing concentration are placed on opposite sides of a semipermeable membrane. Therefore, osmotic pressure is highly influenced by the properties of the semipermeable membrane in an FO membrane process. In this study, the properties of commercial polyamide (PA) and cellulose triacetate (CTA) membranes were analyzed, and the water flux and reverse solute flux were evaluated in FO mode. The major properties of an FO membrane that enhance its performance are its thickness, hydrophilicity, and structure. This work developed a high-performance polyethersulfone (PES) membrane for FO membrane process applications. The PES membrane consists of an active layer formed atop a support layer that includes a backing filled with polymer. The water flux was maximized by forming a loose finger-like structure and generating nano-sized pores to increase porosity. The reverse solute flux was minimized by maintaining the thickness of the support layer including the backing. The performance of the PES membrane was compared with that of commercial HTI-CTA membrane. The properties of the PES membrane attributed to the high water flux and low reverse solute flux. (C) 2011 Published by Elsevier B.V. English ELSEVIER INTERNAL CONCENTRATION POLARIZATION HOLLOW-FIBER MEMBRANES AMMONIA-CARBON DIOXIDE REVERSE-OSMOSIS BEHAVIOR PERFORMANCE DESALINATION BIOREACTOR DRAW Nanoporous polyethersulfone (PES) membrane with enhanced flux applied in forward osmosis process Article 10.1016/j.memsci.2011.02.019 1 JOURNAL OF MEMBRANE SCIENCE, v.375, no.1-2, pp.63 - 68 JOURNAL OF MEMBRANE SCIENCE 375 1-2 63 68 scie scopus 000291575100005 2-s2.0-79955830766 Engineering, Chemical Polymer Science Engineering Polymer Science Article INTERNAL CONCENTRATION POLARIZATION HOLLOW-FIBER MEMBRANES AMMONIA-CARBON DIOXIDE REVERSE-OSMOSIS BEHAVIOR PERFORMANCE DESALINATION BIOREACTOR DRAW Polyethersulfone Nanoporous Forward osmosis membrane Water flux Reverse solute flux