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Investigation of the factors influencing the preparation process of cellulose triacetate forward osmosis membrane
Authors: LIU Leilei , WANG Duo* ,WANG Meng , GAO Congjie
Units: Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education; College of Chemistry and Chemical Engineering, Ocean University of China; Qingdao Shandong Province, 266100
KeyWords: Cellulose triacetate; Phase inversion; Forward osmosis membrane; Membrane
year,volume(issue):pagination: 2011,31(1):77-83

Cellulose triacetate forward osmosis membrane was prepared by phase inversion method. The polymer solution consisted of cellulose triacetate as the membrane material, 1, 4-dioxane and acetone as solvent, and lactic acid as additives. The effects of support materials, solvent evaporation time and the additive content on the membrane performance were investigated. 0.1mol/L NaCl was used as the feed solution and 4mol/L glucose was used as the draw solution. The water flux was between 6 and 7 L / (m2h) and the rejection for NaCl was above 95% .



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