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Preparation and Properties of Chlorine-Resistance Loose Reverse Osmosis Hollow-fiber Membrane  

Kim, Se-Jong (School of Nano and Advanced Materials Engineering, Engineering Research Institute, i-Cube Center, Gyeongsang National University)
Woo, Seung-Moon (School of Nano and Advanced Materials Engineering, Engineering Research Institute, i-Cube Center, Gyeongsang National University)
Hwang, Hae-Yong (School of Nano and Advanced Materials Engineering, Engineering Research Institute, i-Cube Center, Gyeongsang National University)
Koh, Hyung-Chul (Airrane Co. Ltd)
Ha, Seong-Yong (Airrane Co. Ltd)
Choi, Ho-Sang (Dept. of Chemical Engineering, Kyungil University)
Nam, Sang-Yong (School of Nano and Advanced Materials Engineering, Engineering Research Institute, i-Cube Center, Gyeongsang National University)
Publication Information
Membrane Journal / v.20, no.4, 2010 , pp. 304-311 More about this Journal
Abstract
In this study, loose RO hollow fiber membranes using CTA polymer were prepared by phase inversion method and their water purification properties were tested. 1,4-dioxane and LiCl was used as a skin layer formation agent and pore formation agent, respectively. Water flux, salt rejection, chlorine resistance, MWCO and membrane morphology were evaluated as a function of the dope composition. When the membrane prepared using the dope solution of CTA/NMP/1,4-dioxane = 18/72/10 (wt%) with air gap of 30 cm, it shows improved RO performance such as $20.5L/m^2hr$ of water flux, 60% of NaCl rejection, 10,000 ppm/hr of chlorine-resistance and around 5,000 Da of MWCO.
Keywords
cellulose triacetate; hollow fiber; salt rejection; water flux; loose reverse osmosis;
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Times Cited By KSCI : 4  (Citation Analysis)
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