The Zickert Z3700 circular sludge sweeper has been designed to transport bottom sludge and optionally also floating scum for circular settling ponds. The system features a drive unit that is fixed to the side of the pond, eliminating the need for a swing bridge structure. The sweeper is electrically driven by a motor, and the vertical drive shaft transfers motion from the motor, located at the top of the pond, to the sweeper located at the bottom of the pond.