1991 年 16 巻 3 号 p. 163-168
An actual municipal wastewater was used as the feed solution, reverse osmotic concentration of multicomponent solutes was carried out using four types of composite membranes. The experimental results were compared with the experimental results of single solute-water binary systems and discussed how to estimate the solute rejections of a membrane for i species in a multicomponent system using the experimental data obtained from only i species-water binary system.