Sludge Screw Thickner
The SST enables high solids digestion by thickening digester solids and returning them to the digester. The liquid fraction, which is extremely low in suspended solids, is rejected and can be sent to headworks for treatment. Removing the liquid fraction of digestate frees space for solids loading, and digester capacity is increased. The SST’s robust design allows for long operation times, minimal maintenance, and extremely low power consumption.
Function:
- Digester sludge is fed to the SST for thickening.
- The liquid fraction of the sludge, or filtrate, is removed.
- The solids fraction is pressed out of the SST as a cake and returned to the digester.
Features :
- Automatic operation
- High quality and Reliability
- Continuous functioning
- Quick and easy installation
- Low energy consumption
- Innovative washing System
- Dewatering and discharge in one equipment
- Manufactured in Stainless Steel AISI 304 and 316(L)
- Easy removable covers for hygienic inspection
- Low and easy maintenance
Applications:
- Anaerobic Digestion: Recuperative thickening enables high-solids digestion and increased biogas production.
- Municipal Sludge: Thicken municipal sludge to reduce volume.
- Agricultural: Thicken manure to reduce volume for hauling, composting, and land application.
Advantages:
- Reduced risk of screen blockage
- Integrated spray cleaning system for easy maintenance
- Adjustable cake dryness
- Slow rotation speed minimizes maintenance
- Continuous operation and long duty cycles
- Low energy consumption, often 90% less than traditional decanters or centrifuges
- Increases existing digester capacity