Rotating membrane flotation
RMF
With the ceramic membrane discs from KERAFOL®, a new type of flotation process has been developed:
- RMF: Rotating Membrane Flotation
The membrane discs are pressurized from the inside. This creates fine gas bubbles on the outer surface of the ceramic. Simultaneous rotation of the discs shears off the gas bubbles during the formation process and thus limits their size. The result is an extremely fine gas bubble distribution. The visual effect is that of “white water”: fine gas bubbles that remain in the liquid for a very long time.
Rotating membrane flotation is a direct gas flotation process in which it is possible to work directly in the medium to be treated without bypasses. This results in both structural and energetic advantages compared to conventional DAF (Dissolved Air Flotation).
Video: Rotary fumigation
Applications
the Rotating Membrane Flotation
- Flotation: The efficiency of flotation processes is significantly increased by the use of KERAFOL® discs. The finely dispersed gas bubbles lead to accelerated aggregate formation of dispersed particles and thus to more effective separation. The gas bubbles are generated directly in the medium on the membrane surface (no pressure-relaxation flotation).
- Ozonation: The microporous ceramic membranes allow ozone to be introduced into liquids extremely effectively. The extremely finely dispersed gas bubbles remain in the liquid for a very long time, resulting in very low ozone losses.
- Introduction of oxygen: In combination with oxygen, this results in advantageous applications in the areas of fish farming and aquaristics.
- CO2 injection: When gassing with CO2, no more bubbles are visible with the rotating ceramic membrane disks - the CO2 goes directly into solution.
Contact person
Do you have any questions, requests or suggestions?
How can we help you?
Philipp Fuhrmann
Sales engineer ceramic filters
Phone: +49(0) 9645 – 88 622
Fax: +49(0) 9645 – 88 390
E-mail: filter@kerafol.com