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Textbook (Source) : Membrane Technology and applications (Richard W. Baker, John Wiley & Sons, 2                 nd  Ed)


                                                             Isotropic Membranes









                                            •    Electrically Charged Membranes




                                            : Dense or (very finely) microporous




                                            : with fixed (positively or negatively) charge groups




                                            : by exclusion of ions with the same charge as the fixed

                                            charge group




                                            : e.g., diffusion dialysis, electrodialysis etc.
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