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Separation and dewatering of biological microparticles from low concentrated suspensions by using the energy efficient thin film filtration

Lam, Zihim; Nirschl, Hermann; Anlauf, Harald


The cake filtration is considered to be a low cost process for the continuous separation of inorganic and organic particles and also provides a very gentle product treatment. The continuous sedimentation in the centrifugal field or the precoat filtration on a vacuum drum filter is currently used for the separation of biological microparticles. Separation in a centrifugal field with a low density difference between the particles and the continuous phase requires a high centrifugal force to achieve the desired separation efficiency. Therefore a large amount of energy is required to accelerate the suspension. An alternative separation method for biological microparticles would be the cake filtration, but this method however causes a high filter cake resistance.
The aim of this project is to develop a continuous thin film filtration method for the cake filtration. In order to realize this, microporous membranes with pore diameters ranging from 0.1-1 μm will be used. Besides the advantage of a particle free filtrate, using these semipermeable membranes will result in a filtration without any gas flow rate. These semipermeable membranes are permeable for liquids but will block the gas flow. ... mehr

Volltext §
DOI: 10.5445/IR/1000063583
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Mechanische Verfahrenstechnik und Mechanik (MVM)
Publikationstyp Proceedingsbeitrag
Publikationsjahr 2016
Sprache Englisch
Identifikator urn:nbn:de:swb:90-635831
KITopen-ID: 1000063583
Erschienen in Filtech 2016, 11. - 13. Oktober 2016, Köln [L9 - Cake Filtration VI - Novel Continuous Process Concepts]
Schlagwörter Cake filtration, thin film filtration, membrane filtration, biological microparticles, algae, yeast
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