Simultaneous prediction of flux and retention for osmotic pressure controlled turbulent cross flow ultrafiltration

摘要: Abstract A mathematical model is developed for quantification of concentration polarization phenomena during osmotic pressure controlled ultrafiltration under turbulent flow conditions. An integral method used the solution profile in developing mass transfer boundary layer a rectangular channel. The to predict permeate flux and observed retention simultaneously cross ultrafiltration. results from numerical equations are compared with existing data literature dextran (T-70) over range operating predictions found be excellent agreement experimental results. Furthermore, detailed parametric study has been undertaken investigate effects system parameters (e.g. difference, velocity, bulk concentration, real retention, etc.) on performance (permeate retention).