Rotation filtration

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)

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.

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Ceramic Filter Disc 374	Ceramic Filter Disc 312	Ceramic Filter Disc 152
Diameter Øo 374 mm Diameter Øi 91 mm Thickness d = 6,0 mm Membrane surface 0,20 m²	Diameter Øo 312 mm Diameter Øi 91 mm Thickness d = 6,0 mm Membrane surface 0,14 m²	Diameter Øo 152 mm Diameter Øi 25,5 mm Thickness d = 4,5 mm Membrane surface 360 cm²

Overview

• Filtration from outside to inside
• Support: pore size 2,0 µm
• Support coating with layers of lower pore size (micro filtration and ultra filtration)
• Chemical and thermal resistance
• Backflushing

Ceramic Filter Discs provides maximum process safety

• Resistance to chemical and thermal stresses
• Regeneration by backflushing or hot steam sterilization
• High filtration flux and very long service life

Kerafol^® provide you with the necessary parameters for installing the discs in your filtration plants (sealing, fixing, process parameters).

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• Invitations to exhibitions and lectures

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