Dialysis membrane separation in the liquid or some solute ions in the promoting concentration difference, potential difference, through the membrane into liquid, it is separated out; membrane separation is belong to the dialysis and dialysis electrodialysis etc..
Filter membrane separation: the difference in size and nature of the use of component molecules shown through the membrane of the rate difference, achieve separation of components; to filter membrane separation with ultrafiltration, microfiltration, reverse osmosis and gas permeation.
Liquid membrane separation: liquid film and liquid and liquid immiscible liquid liquid through the membrane penetration, similar to the extraction and back extraction combination; solute from liquid into the liquid equivalent of extraction, the solute from the membrane into the acceptable solution equivalent to reverse extraction.
