WTDS Dewatering Disc Press

Would you like to:

  • Recover 50% to 95% of your OPEX associated with sludge disposal
  • Reduce tanker visits by up to tenfold
  • Significantly reduce your treatment plant’s Carbon footprint
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How the WTDS Disc Press works

After passing through the flow control and flocculation tanks, the sludge enters the non clog thickening zone. This consists of a drum which houses a screw running at a fixed speed. The drum consists of spacers, fixed and moving rings. The moving rings have a smaller outer diameter than the screw. As the screw operates, the moving rings continuously clean the sludge from the gaps allowing filtrate to pass and ensure clog free operation.

As the sludge progresses along the screw, the pitch narrows, increasing the pressure and dewatering efficiency.

Sludge can be taken directly from source e.g. aeration tank, which means costly upstream storage tanks are not necessary. As the thickened/dewatered sludge is low volume the cost of downstream storage tanks is also massively reduced.

Existing installations direct dewater from 3-4% DS to over 25% DS. 

With low power, water and polymer consumption, the WTDS Disc Press can really deliver value to your sludge disposal process.

 

TYPICAL BUSINESS CASE

Sludge transport cost (£/m3): £20                                                                                                       

Liquid sludge produced per week - 60m3 @ 5% Dry Solids                                                                Annual cost to transport: £62,400

Cake produced per week - 10m3 @ 25% Dry Solids                                                                          Annual cost to transport: £10,400

Annual saving on transport costs: £52,000                                                                                          Annual chemical costs: £4,056                                                                                                            Annual power costs: £2,409

TOTAL ANNUAL OPERATIONAL SAVINGS:  £45,535

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