S. Pavlova et I. Dobrevski, SODIUM-CHLORIDE ION-EXCHANGE OF WATER BEFORE MEMBRANE DEMINERALIZATION, Acta hydrochimica et hydrobiologica, 21(3), 1993, pp. 173-176
The possibility of using sodium-chloride ion exchange for water pretre
atment before membrane demineralization was studied. The parameters of
the water obtained are: permanganate oxygen demand, lower than 1.0 mg
O2/dm 3; MF0.45, lower than 150 s; amount of total iron, lower than 5
0 mu/dm3. This water meets the requirements for all reverse osmosis an
d electrodialysis membranes.