Okanagan BC Water Treatment Plant: Residuals Dewatering Case Study
Two HAUS DDE 4042 decanter centrifuges dewater the residuals from a municipal water treatment plant in the Okanagan, BC.
2023In service
2 × DDE 4042HAUS decanter centrifuges
18 %design cake solids
≥ 95 %design solids capture
The application
The plant, a new municipal water treatment plant in the Okanagan, BC, thickens its filter backwash residuals before dewatering. Two decanter centrifuges turn the thickened residuals into a cake that can be trucked away, and return clear centrate to the plant.
Generic flowsheet for illustration. Every Archer system is designed to its own basis; ask us for one drawn for your plant.
What Archer supplied
- Two HAUS DDE 4042 decanter centrifuges with duplex stainless steel bowls and 316 stainless scrolls
- Two local control panels
- Pneumatic diverter gates for the cake discharge
- Spare parts, installation support and commissioning
Design basis
| Feed | Thickened water treatment residuals, 1.5–2.0 % TSS |
|---|---|
| Flow per machine | 5 L/s (18 m³/h) |
| Solids per machine | 360 kg DS/h nominal, up to 600 kg DS/h |
| Cake | 18 % ± 1 % dry solids |
| Capture | 95 % or better |
Design figures from the equipment proposal.
Related: Decanter Centrifuges · Municipal Water and Wastewater · All case studies