Presently, pervaporation (PV) is applied as the chosen membrane separation technique for the separation of water/organic, organic/water, and organic/organic mixtures. However, it seems that conventional PV is not the most efficient membrane separation process for the treatment of some liquid mixtures as follows. Because the polymer membranes used in PV are directly in contact with the liquid feed solutions as shown in Fig. 1, however, specifically designed chemical and physical properties of the membrane are often impaired by swelling or shrinking of the membrane due to sorption of the feed components. Swelling or shrinking of the polymer membranes is disadvantageous for the membrane performance with respect to the separation of mixtures. A novel membrane separation technique known as “evapomeation (EV)” (Uragami et al. 1988; Uragami and Saito 1989; Uragami 1991, 1992, 1993a, b; Uragam 1994; Uragami 1998, 2005, 2006a, b, 2008) makes use of the advantages of PV but reduces the negative...
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References
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Uragami, T. (2016). Evapomeation (EV). In: Drioli, E., Giorno, L. (eds) Encyclopedia of Membranes. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-44324-8_639
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DOI: https://doi.org/10.1007/978-3-662-44324-8_639
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