HUBER Screw Press S-PRESS The sturdy, flexibly applicable sludge dewatering unit
Dewatering of municipal and industrial sludges
- Compact, enclosed design
- Efficient, reliable, automated operation
- Low operation costs
- Robust and durable stainless steel sludge dewatering unit designed for long-lasting performance
- Feed capacity up to 1,100 lbs. DS/hr / 500 kg DR/h
- Two sizes available
- Extremely sturdy design
- Especially suitable for industrial sludges
- Well-proven in hundreds of installations
- Virtually noiseless operation
Design and Function
Liquid sludge is treated with a polymer flocculant in a flocculation reactor, resulting in large solid flocks. The flocculated sludge then flows into one or two machines installed in parallel for further processing.
The Screw Press consists in an inclined 0.25 mm wedge wire basket. The free water drains through the basket while the solids are retained inside the basket and gently conveyed upwards through the inclined basket by a slowly rotating screw. Continuous dewatering occurs in the Screw Press, with pressure building up progressively due to the conical shape of the basket, which reduces the sludge cake volume in the press zone. The filtration pressure within the machine can be adjusted using a pressure cone at the sludge discharge.
Brush elements on the screw flights clean the basket from the inside and rotating spray nozzle bars backwash it periodically from the outside.
The Benefits of HUBER Screw Press S-PRESS
- Sludge volume and mass reduction up to 90 %
- Resistant to coarse material, designed for high solids loads
- Minimum wear because of < 5 rpm screw rotation speed
- Low power and water consumption
- Automated operation
- Low maintenance requirements, no need for lubrication
- Low operation costs
- Completely encapsulated, odor-free plant
- Low noise < 68 dB(A)
- No vibration
- Pneumatically controlled pressure cone system
- Extra sturdy design for industrial applications
- More than 700 successful installations worldwide
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