Sedicell0 pages

sedicell anglais - new 2008-01.qxp

27.05.2008

08:41

Seite 1

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Dissolved air flotation (DAF) clarifier for sludge thickening

Mechanically simple and robust
construction combined with
sophisticated hydraulic design
allows constant and reliable
performance in any conditions.

Main advantages :
- High floated sludge consistency is easy to achieve and maintain even without polymer.
- Low sensitivity t o variations in flow and quality of the influent.
- Excellent performance with “difficult” and “fragile” sludge quality. The sludge blanket does not move and the
risk of having “sinking flocs” is negligible (the sludge is not pushed to the sludge extraction device as the spiral
scoop is travelling around the sludge blanke t ) .

Main applications :
- Excess biological sludge thickening before further de-watering (excellent application in case of biological
phosphorous removal or for large amounts of excess sludge. This also reduces the polymer consumption in the
sludge de-watering system).
- Biological sludge clarification after aeration tanks gives the possibility t o raise the concentration in the aeration
tanks up to 8-10 g/l.

The construction of the SEDICELL allows fabrication of the tank in stainless steel or in concrete.

The sludge extraction can be controlled automatically with a sludge blanket controller. This allows fully automatic
operation of the entire installation while maintaining optimal operating conditions.

SEDICELL is available in 18 sizes from 2,4 to 20 m diameter.