Electrolyte transfer separation of hollow fiber composite nanofiltration membrane

来源期刊：中国有色金属学报(英文版)2010年增刊第1期

论文作者：刘久清

文章页码：293 - 296

Key words：electrolytes; transfer separation; hollow fiber membrane; nanofiltration

Abstract: Using Donnan Steric Partitioning Model (DSPM), the data for the rejection of four salts having common co-ion (LiCl, NaCl, KCl, Na₂SO₄) were obtained and they show the characters of the polyethersulfone (PES) nanofiltration (NF) membrane in terms of three parameters: an effective pore radius (r_p), the ratio of effective thickness over porosity (λ/A_k) and an effective charge density (X). Good agreement between experimental data and prediction data using the three parameters mentioned above was obtained. A theoretical model was developed to predict the transport performance of electrolyte through the hollow fiber composite NF membrane. The model prediction is in good agreement with experimental results based on the method by modern numerical solution.

基金信息：the National Natural Science Foundation of China
Energy-saving and Emission-reducing Major Special Projects of Department of Science & Technology of Hunan Province, China
Plan on Science and technology Bureau of Changsha, China