In this study, we performed preparation and characterization of cellulosic hollow fiber membrane for the application of pressure retarded osmosis(PRO). We used high temperature nonsolvent induced phase separation (HT-NIPS) method to prepare robust hollow fiber membranes with cellulosic polymer blends at high concentration. Prepared hollow fiber membranes showed effective skin layer formation and sponge-like pore structure. In addition, the effects of pore-forming agents with different molecular weight and bore liquid composition on PRO performance were studied. The prepared membranes showed stable water flux and power density under the hydraulic pressure upto 10 bar. The highest power density of the membrane module was 5 W/m2 at 12 bar.

• 김상득(한국화학연구원, Membrane Research Center, Korea Research Institute of Chemical Technology, Daejeon, Korea) | Sang Deuk Kim
• 조영훈(한국화학연구원, Membrane Research Center, Korea Research Institute of Chemical Technology, Daejeon, Korea) | Young Hoon Cho
• 박호식(한국화학연구원, Membrane Research Center, Korea Research Institute of Chemical Technology, Daejeon, Korea) | Hosik Park
• 이평수(한국화학연구원, Membrane Research Center, Korea Research Institute of Chemical Technology, Daejeon, Korea) | Pyeong Soo Lee
• 남승은(한국화학연구원, Membrane Research Center, Korea Research Institute of Chemical Technology, Daejeon, Korea) | Seung-Eun Nam
• 박유인(한국화학연구원, Membrane Research Center, Korea Research Institute of Chemical Technology, Daejeon, Korea) | You-In Park