Electro dialysis (ED) plant desalts brackish water. The initial concentration of brackish water is 4.5 g/L...

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Electro dialysis (ED) plant desalts brackish water. The initial concentration of brackish water is 4.5 g/L and the desired potable water must have 0.5 g/L. The volume flow rate is 5 m'/h. a) Determine the density of current (i). b) Calculate the density of current limit (iimit = DCL). %3D c) Take the operating density of the current i 0.8 DCL and calculate c 1) the required membrane area of the ED plant. c 2) the capacity (volume flow rate) can be desalted by this plant. Take: e = 0.8, n = 0.85, 8 = 10 m, F= 96500 Clequiv., D = 1.5*102 m /s, ST = 860 m, t = 0.95, t = 0.45 Electro dialysis (ED) plant desalts brackish water. The initial concentration of brackish water is 4.5 g/L and the desired potable water must have 0.5 g/L. The volume flow rate is 5 m'/h. a) Determine the density of current (i). b) Calculate the density of current limit (iimit = DCL). %3D c) Take the operating density of the current i 0.8 DCL and calculate c 1) the required membrane area of the ED plant. c 2) the capacity (volume flow rate) can be desalted by this plant. Take: e = 0.8, n = 0.85, 8 = 10 m, F= 96500 Clequiv., D = 1.5*102 m /s, ST = 860 m, t = 0.95, t = 0.45

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