- Constant thickening for optimum digestion tower utilization and maximum gas yield
- Reduces operating costs with 20% energy savings and minimal polymer consumption
- Made in Germany: Low maintenance thanks to high-quality materials and clever design
OSE = Optimum Sludge Thickening
The Decanter Centrifuge for Thickening Sewage SludgeIn the process of treating waste water, fine biological sludge is constantly produced during the decomposition process at a sewage treatment plant. For a stable decomposition process in the biological treatment phase, the sludge produced in the secondary sedimentation pond, also known as excess sludge, is removed and fed into the digestion tower. Flottweg's OSE decanters thicken the sludge before it enters the digestion tower. Sewage treatment plants benefit from an even feeding of the digestion tower and can thus optimally use the volume of the digestion tower.
The Flottweg OSE decanter is specially designed for sludge thickening. Thus this thickening centrifuge achieves considerably better separation qualities than other centrifuges.
70 years of experience and know-how in the field of sewage sludge thickening flow into our Flottweg OSE decanters. The thickening decanter is thus convincing in terms of reliability, high economy and minimum maintenance.
The following machines are available in the OSE version:
Operating principles of a Flottweg OSE decanter
The excess sludge from the secondary clarifier is pumped into the OSE decanter. This separates the solid from the liquid by means of centrifugal acceleration. The excess sludge is thickened from 0.5 - 1 percent (5-10 grams per liter) dry matter (DM) to 6 - 8 percent DM.
The dry matter content in the thickened sewage sludge depends on the pumpability of the thick sludge and the thickening equipment used.
Cross section of a Flottweg OSE decanter of the C-series
For use in the thickening of sewage sludge
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