The AquaDecanter-R rotary decanter is one of the most successful and reliable products in the range of wastewater treatment equipment available from Aquatec Maxcon Pty Ltd.
During the settlement period of an intermittent aeration wastewater treatment process, activated sludge settles to the tank bottom, leaving clear treated supernatant on the top. The treated supernatant can be removed effectively with minimal carry-over of solids by the decanter without disturbing the sludge blanket at the bottom of the tank.
The rotary decanter consists of a decant trough, weir, floating scum buffer, carrier pipes, rotary collection pipe, submersible support bearings, and drive mechanism.
In operation, the drive mechanism extends and retracts a drive shaft which actuates an eccentric link arm that rotates the trough up or down in an arc into the supernatant. The trough, carrier and collection pipes are supported at both ends by submersible bearings. The bearings are secured inside bearing housings, which are bolted to concrete plinths. The supernatant discharge rate can be controlled over the weir by variable speed control to maintain optimum flow. The floating scum baffles prevents scum from approaching the weir.
The decanter drive mechanism consists of an electric motor, gearbox, jack mechanism and screwed drive shaft. The drive is typically fitted with internally actuated position indicators that allow drive limits to be set for BWL, top park position and over limit safety stops. Optionally position transponders can also be fitted. The drive mechanism is normally installed at the end of the tank.
Other Decanting Equipment
Aquatec Maxcon can also provide different kinds of decanters to suit customer requirements.
Aquatec Maxcon has established and maintains a dedicated service department for scheduled maintainence and breakdown services.