FRANCE INDUSTRIES ASSAINISSEMENT (F.I.A)

In 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. ► Highest gas yield through constant feeding of the digestion tower ► Best possible thickening even with changing feed conditions ► Larger sedimentation volume (due to deep pond and steep cone) enables highest power density (10 - 20 percent) with minimum space requirement

The demands on the quality and efficiency of sewage treatment plants are growing from year to year, not least due to rising energy and disposal costs. As a result, using decanters to dewater sludge means using state-of-the-art technology. The C-series decanters from Flottweg achieve high performance with reduced energy consumption. Flottweg Wastewater Decanters offer advantages over other processes and competitors' machines: ► High dry solids values in the discharged material ► Higher power density within a small footprint ► Powerful Flottweg Simp Drive® drive ► Reduction of operating costs due to reduced need for flocculant ► Additional energy recovery with the Flottweg Recuvane® system ► Economical bowl and scroll drive ► duces the energy consumption of your decanter by 10 to 30 percent

A more economic solution for an environmentally sound condensate management is the decentralised oil-water separation directly at the source. Condensate which was processed with ÖWAMAT can be directly introduced as cleaned water into the sewerage system. The devices have a national technical approval and do not require a permit according to the law on water. In addition, the ÖWAMAT oil-water separators do not create any energy costs, boast enormous filter service lives and can be retrofitted into older systems without difficulty.

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