Rotating drum-type concentrators consist of a drum-type screen made of metal wedge wire. Coagulated sludge fed into the concentrator is concentrated as the drum rotates and fed toward the exit by a spiral-shaped feed impeller inside the drum. The screen is continuously washed during operation to keep it from clogging.
Easy operation and maintenance management
The machine features simple concentration principles and design and uses fewer consumables to keep operation and maintenance management simple.
Low power consumption
The machine has extremely low power consumption thanks to a simple design that requires only that the drum screen rotate at low speed.
High concentration performance
The machine delivers stable performance, with a concentrated sludge concentration of at least 4% and a suspended solid recovery rate of at least 97% (with excess sludge).
The machine uses fewer consumables, keeping the cost of maintenance low.
Reduced odor, noise and vibration
Thanks to the machine’s sealed design, it is easy to keep unpleasant odors under control. Additionally, there is almost no noise or vibration since the drum rotates at low speed.
By mixing excess sludge and raw sludge (primary sludge), coagulation is improved, and the coagulant floc that is produced becomes robust and readily dehydrated. This approach can significantly increase sludge treatment volume (by at least 5 times compared to when using excess sludge alone). A compact machine can handle the process, even with an increase in treatment volume.