Polyelectrolyte complexes (PECs)/polyvinyl alcohol (PVA) membranes are pioneered for DD process of salts.
PECs/PVA membranes have improved stability in water and salt solution.
The dialysis coefficients of NaCl and NaAc are significantly higher than those of commercial membranes.
PECs/PVA membranes can recover salt from NaCl/threonine mixture and NaAc waste residue solution.