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Semicontinuous Discharge of Non‐Newtonian Filter Cakes in Electrofiltration |
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| Authors: | I Perner‐Nochta R Rodrigues Y Serve C Posten |
| Affiliation: | 1. Karlsruhe Institute of Technology (KIT), Institute of Process Engineering in Life Sciences, Section III: Bioprocess Engineering, Karlsruhe, Germany;2. Universidade do Minho, Braga, Portugal;3. University of Stuttgart, Stuttgart, Germany |
| Abstract: | A novel mode of operation for electrofiltration is presented. The newly developed operation procedure allows for cake removal without disassembling the chamber. Highly viscous filter cakes are discharged from the filtration chamber by inserting air which permits a rapid restart of the process. The cleaning time could be reduced from about 10 min to a few seconds. The semicontinuous operation is liable to full automation and allows for cake discharge and filtration in a short period of time. In successive cycles was proved that the process efficiency is maintained using the same membrane. A fully continuous system can be accomplished by assembling several units in parallel in a single filtration press. |
| Keywords: | Biopolymers Compressible filter cake Electrofiltration Pectin Xanthan |