Outstanding Screw Press Performance for Bribie Island STP
The Bribie Island STP operated by Unitywater can process 5.8MLD of sewage.
In a recent upgrade by Hydroflux Epco, the existing belt filter press was replaced with two new HUBER Q-PRESS® Screw Presses. The project also included the associated sludge pumping stations, polymer make up and dosing skids, control system, PLC and SCADA works.
Design, mechanical and electrical installation works were provided by Hydroflux Epco as a turnkey solution.
The initial start up of the screw presses shows that the units can achieve 18%DS with 95% capture. This is significantly higher cake solids than the existing belt filter presss, which will result in a reduction in sludge transport costs for Unitywater.
Key Benefits:
- High cake solids, less off site disposal costs
- Lowest energy demand (10% of a centrifuge)
- Automatic Unattended Operation
- Max internal speed of 1RPM
- Lowest maintenance demand
- Full stainless steel construction
- Fully enclosed system
The screw press operates at a maximum speed of 1RPM. This means the machine requires a small drive to operate, when compared to high speed centrifuges, which operate at 3000RPM.
HUBER’s Q-PRESS® has been specifically designed to dewater waste activated sludge. The internal basket is a wedgewire profile and specifically arranged to suit waste activated sludge dewatering.
| Item | Value |
| Sludge Type | WAS |
| Max Capacity | 34 m3/h |
| No. of units | 2 |
| Installed Power | 4.4 kW |
| Dry Solids | 18% w/w |
| Capture | 95% |
| Polymer Dose | 10 kg/t |
Up Next
Innovative Screening Solution for Bullsbrook WWTP
