Inhibition of CaSO_4 of Various Inhibitors with Partial Permeate Withdrawal Method
Scaling of reverse osmosis (RO) membrane as one of main problems in desalination process, currently there is no satisfactory method for reliable evaluation of scaling limits and for confident selection of the most cost effective inhibitors. Method of partial recycle of permeate was used to evaluate inhibitor efficiency. The sharp drop in membrane parameters such as turbidity, supersaturation and permeability at the onset of scaling was used to determine the limiting water recovery. Three kinds of inhibitors were evaluated, with detailed description of the scaling process of reverse osmosis.