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The heating of a liquid within a dialyzing bag suspended over a hot plate, evaporation taking place rapidly through the membrane; any colloids in solution remain within the bag while crystalloids diffuse out and crystallize on the outer surface of the bag (perstillation).
[L. per, through, + vapor, steam]
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References in periodicals archive ?
Studies have been carried out with silk protein sericin for the development of water-selective membrane blends crosslinked with DMU, which have led to a high water selectivity in the pervaporation process [8].
Feng, "Composite membranes comprising of polyvinylamine-poly(vinyl alcohol) incorporated with carbon nanotubes for dehydration of ethylene glycol by pervaporation," Journal of Membrane Science, vol.
Pervaporation experiment was conducted using a lab scale apparatus shown in Fig.1. US MEMBRANE DEMAND (million dollars) % Annual Growth Item 2006 2011 2016 2006- 2011- 2011 2016 Membrane Demand 2610 3685 5350 7.1 7.7 Microfiltration 1205 1560 2070 5.3 5.8 Reverse Osmosis 590 882 1355 8.4 9.0 Ultrafiltration 489 740 1125 8.6 8.7 Pervaporation 74 120 190 10.2 9.6 Other 252 383 610 8.7 9.8 [c] 2012 by The Freedonia Group, Inc.
Sanchez OJ, Cardona CA, Cubides DC (2005) Modeling of simultaneous saccharification and fermentation process coupled with pervaporation for fuel ethanol production.
Post-column derivatisation with o-phthalaldehyde Papaefstathiou and Ammonia separated by pervaporation and Luque de Castro (1997) detected with an ion-selective electrode.
These include the integration of pervaporation in a membrane-hybrid process and a membrane extraction technique that uses a hollow-fiber membrane module, in a process called perstraction, to separate flavors from a fermentation broth.