Flottweg Success @Zelenograd Wastewater Treatment Plant
Four Flottweg X-series decanters (Xelletor) with a polymer-conditioning complex were installed at the wastewater treatment plant. The capacity of each decanter is 840 m3/day (range is 20–60 m3/hour). The new Flottweg machines are superior to their predecessors in dewatering effectiveness, establishing new standards of output, dewaterability, polymer and energy consumption.
The decanter centrifuges were equipped with a Simp Drive® drive unit to manage the decanter bowl and scroll speed differences. The drive unit maintains the specified humidity of dewatered sludge by ensuring a constant torque at the decanter screw conveyor. The Flottweg decanters automatically control and maintain the speed of the bowl rotation and the differential speed of the scroll. Metering of the required flocculant solution is controlled in real time.