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The Screw Press has been designed by HAUS for the dewatering process in wastewater treatment plants. The continuous solid discharge with its adjustable screw speed, torque power, and inclined bowl ensures high dryness through an uninterrupted dewatering process. The Screw Press automatically adjusts the back-pressure required for compression according to the solid content of the product.
The sludge must meet certain conditions for the Screw Press to achieve efficient solid-liquid separation. This makes the Screw Press an effective and versatile machine for sludge dewatering in virtually any application where waste treatment sludge is generated.
Wastewater treatment plant sludges, drinking water treatment plant sludges, food processing sludges (fruit juice production, dairy production), paint and chemical industry waste sludges, and energy sector sludges such as flue gas washing sludge — sludges that flocculate easily and separate readily from filtrate water are the most suitable for solid-liquid separation with a Screw Press. Where required, these sludges can be brought to the optimal solid concentration using polyelectrolyte or coagulant in the thickening tank also supplied by HAUS.
Two Different Technologies
HAUS offers two different Screw Press technologies developed for different sludge characteristics. These systems provide reliable solutions for sludge dewatering applications with low energy consumption, high mechanical durability, and a continuous operating principle.
• Disc Type Screw Press – SDE Series
• Basket Type Screw Press – SWE Series
Auxiliary Equipment — YT1000 Sludge Thickener
The YT1000 Sludge Thickener is a flocculation and thickening tank incorporating a filtration system made up of moving discs. In addition to flocculating waste sludge, it also filters excess water from the sludge for concentration. The YT1000 has been designed by HAUS specifically for wastewater treatment plants to achieve maximum flocculation and optimum thickening.
The YT1000 is equipped with mixer blades and a variable-speed drive system. The unit features inlets for waste sludge, polymer, washing water and recirculation sludge, as well as a concentrated sludge outlet. The YT1000 also incorporates a specially designed anti-clogging moving filtration and drainage system to ensure maximum efficiency.
The mixer blades achieve maximum flocculation at the optimum mixing speed, while the filtration system filters excess water to reduce the load on the downstream decanter or screw press. The drainage system prevents overflow even under conditions of excessive sludge feeding, ensuring continuous and uninterrupted operation.
All parts of the YT1000 Sludge Thickener are manufactured from high-quality stainless steel. The moving filtration system consists of castermid rings.
Energy Efficiency
This design guarantees a wide working range to increase flexibility during energy efficiency optimization
No Clogging
Dewatering without clogging with moving and stationary disks
Continuous Working
It is not necessary to stop the product feed during the washing system
Low Noise Level
Low energy consumption due to low speed operation system and noise level less than 60 dB
WORKING PRINCIPLE
