Membrane techniques

The results of nanofiltration of natural waters have been described using the extended Nernst– Planck equation. The model of NF based on that DS-5-DK DS-5-DK 1) Gl. 1MPa 1) Gl. 2MPa 1) ww 2MPa 2) Gl. 1MPa 2) Gl. 2MPa 2) ww 2MPa / p lp / Xp [ m] 1) Gl. 1MPa 1) Gl. 2MPa 1) ww 2MPa 2) Gl. 1MPa 2) Gl. 2

The paper presents the results of tests carried out on selected membranes, SEPA (Osmonics Inc., USA). The efficiency of membrane water softening was evaluated on the basis of permeate flux and the physicochemical analysis of raw water and permeate. The transport-separation properties of the membrane