Rotation Filtration (Dynamic Cross-Flow-Filtration) provide maximum filter efficiency.
The cross flow effect (tangential flow cleaning of the filter surface) is generated by the rotating of the filter discs and not by pumping large volumes.
extreme cross flow velocity (highly efficient cleaning of the filter surface)
very low energy consumption (compared to conventional cross flow techniques)
Comparison of Conventional and Dynamic Cross Flow Filtration
Increased filtration capacity of the Rotation Filtration compared to the conventional Cross-Flow Filtration and Dead End Filtration.
Diagram Rotation Filtration
Rotating Ceramic Filter Discs are assembled in a pressurised housing. The design of the discs shows drainage channels in the inside. The filtrate is transported from the outside to the inside of the discs. The rotation of the discs generates shear forces on the membrane surface. With this technique an increase of a filter cake is avoided resulting in a high filtration flux.
Diagram of a Rotation Filtration: arrangement of volume flows feed , filtrate and retentate (advantages: easy control and less amount of pipework)
Rotation Speed (rotating Ceramic Filter Discs)
Transmembrane Pressure TMP (pressurised housing)
Solid Content (concentration of liquids due to the removal of filtrate)
Rotation Filtration Modul with Ceramic Filter Discs: Membrane Surface 35 m²
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