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At a certain point in a spiral-wound membrane, the bulk conditions on the feed side are 1.8wt%NaCl,25C, and 1,000 psia, while bulk conditions on the

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At a certain point in a spiral-wound membrane, the bulk conditions on the feed side are 1.8wt%NaCl,25C, and 1,000 psia, while bulk conditions on the permeate side are 0.05wt%NaCl,25C, and 50psia. For this_membrane the permeance values are 1.1105g/cm2satm for H2O and 16106cm/s for the salt. If mass-transfer resistances are negligible, calculate the flux of water in Litre/( m2.day) and the flux of salt in grams /(m2.day). Data: Atomic weights: Na23,Cl35.4 For seawater, an approximate expression for osmotic pressure is =1.12Tmi where p is in psia, T is in K, and mi is the summation of molarities of dissolved ions and nonionic species in the solution in mol/L. 1atm=14.7psia

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