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A new osmotic backwash (BW) model for reverse osmosis (RO) membranes was developed for conditions of no applied pressures across the membrane. This analytical model has one adjustable parameter representing the coefficient of a linearized convection term in the general convection–diffusion equation. An experimental RO/BW system was used for 12 data sets to verify the proposed BW model and illustrate...
The aim of the present work is to consolidate laboratory techniques we have developed for determining the scaling threshold limits of RO feed waters and for assessing the relative inhibitory effectiveness of various antiscalants. The maximum permissible water recovery may be determined from induction time measurements of supersaturated solutions recycling through a laboratory RO module with permeate...
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