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Keramische Membranen in der Membrandestillation |
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| Authors: | Johann Schnittger Marcus Weyd Ingolf Voigt André Lerch |
| Affiliation: | 1. Fraunhofer-Institut für Keramische Technologien und Systeme IKTS, Michael-Faraday-Stra?e 1, 07629 Hermsdorf, DeutschlandCorrespondence: Johann Schnittger (Email:), Fraunhofer-Institut für Keramische Technologien und Systeme IKTS, Michael-Faraday-Stra?e 1, 07629 Hermsdorf, Deutschland.;2. Fraunhofer-Institut für Keramische Technologien und Systeme IKTS, Michael-Faraday-Stra?e 1, 07629 Hermsdorf, Deutschland;3. TU Dresden, Professur für Verfahrenstechnik in Hydrosystemen, Bergstra?e 66, 01069 Dresden, Deutschland |
| Abstract: | TiO2 membranes were successfully rendered hydrophobic (modified with perfluoroalkyl silanes) and evaluated by liquid entry pressure (LEP) measurements and membrane distillation (MD) tests. It was shown that the LEP is strongly depended on the pore size of the membranes and the feed composition. The obtained permeate fluxes were highest in vacuum MD. None of the membranes showed any sign of wetting during the experiments and salt retentions greater than 99.9 % were recorded and permeate qualities lower than 2 µS cm?1 were achieved in air gap MD and vacuum MD. |
| Keywords: | Membrandestillation Liquid entry pressure Titandioxid Membrane distillation Liquid entry pressure Titanium dioxide |