Dewatering presses are one of several solids / liquids separation technologies used to treat municipal and industrial sludges and other waste materials. By reducing the volume of the solid material, disposal costs can be greatly reduced. Read More

With belt filter presses , a chemically treated sludge is sandwiched between two belts that pass through a series of rollers, effectively squeezing the water out. The final cake will typically be up to 35% solid.

In a plate and frame filter press the sludge is pumped into a framework of vertically orientated plates. As the chamber fills the pressure increases. The filtrate drains away and the dewatered solids build up in the spaces between the plates.

Membrane filter presses work in a similar manner, except that towards the end of the process the plates are inflated to to further compress the filter cake. This results in a drier end product.

Screw presses can operate on a continuous basis. Sludge is fed into the device and dewatered at the inlet point by gravity drainage. As the sludge is moved by the screw to the discharge point it is compressed and more water is forced out.

Alternative dewatering technologies include centrifuges and sludge thickeners

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Dewatering presses - helping you find the best solution for your project.

  • MSE Hiller: DP764 mobile sludge dewatering rig
    DP764 mobile sludge dewatering rig
    MSE Hiller
    The DP764 mobile sludge dewatering rig is mounted on a 45 foot trailer and uses the new Hiller model DP764 Decapress machine, offering capacities up to 130 m3/hr at g forces of up to 3,000 x g. Fitted with a modern SEE...
  • Aquatreat Environmental Products: Electro Osmosis Dehydrator - sludge dewatering/treatment
    Electro Osmosis Dehydrator - sludge dewatering/treatment
    Aquatreat Environmental Products
    The award-winning, field-proven and robust Electro Osmosis Dehydrator treats all types of sludges: municipal sewage; food processing; livestock processing; paint processing; dyeing processing; chemical processing; paper...
  • Siltbuster: Gritbuster UNO waste dewatering system
    Gritbuster UNO waste dewatering system
    Siltbuster
    The Gritbuster UNO system is designed to accept wet gully waste and sitesweeper waste, dewater it and treat the water for reuse or disposal to a sewer. It is constructed on an ISO frame container-style platform, which can be...
  • MSE Hiller: Smicon MAS screw filter unit
    Smicon MAS screw filter unit
    MSE Hiller
    The MAS screw press filter is ideal for dehydrating and separating all kinds of solid or liquid process liquids, waste and residue flows. The internal screw transports the product from the inlet to the delivery chamber. As...
  • Siltbuster: Siltbuster's Filter Presses
    Siltbuster's Filter Presses
    Siltbuster
    The Siltbuster mobile filter press has been designed to work alongside our Hopper Bottom Siltbuster HB50 unit, the mobile filter press enables dewatering of solids laden slurry and produces a cake which can be disposed of to...
  • Aquatreat Environmental Products: Dewatering vacuum belt filter for inorganic products
    Dewatering vacuum belt filter for inorganic products
    Aquatreat Environmental Products
    Aquatreat's Vaccum Belt Filter is a simple, fully automatic system that requires minimal operator input and is effective in dewatering many types of inorganic products without the need for chemicals. It is used in a wide...
  • Aquatreat Environmental Products: Ace high pressure belt press
    Ace high pressure belt press
    Aquatreat Environmental Products
    The Ace high pressure belt press is effective at dewatering all types of sludges including (but not limited to) municipal sewage treatment, industrial effluent treatment, paper mill, food processing, textile dying, tannery...
  • Aquatreat Environmental Products: Ace medium pressure belt presses
    Ace medium pressure belt presses
    Aquatreat Environmental Products
    The Ace medium pressure belt press is effective at dewatering all types of sludges including (but not limited to) municipal sewage treatment, industrial effluent treatment, paper mill, food processing, textile dying, tannery...
  • Euroby: Filter presses
    Filter presses
    Euroby
    Euroby supplies, installs and maintains filter press units to meet customers individual requirements from fast acting fully automatic machines with membrane inflation to simple small capacity sidebar machines. They are...
  • Evoqua Water Technologies: J-Press® automated high-performance filter press
    J-Press® automated high-performance filter press
    Evoqua Water Technologies
    The J-Press® automated high-performance filter press produces high solids filter cake, with extremely high clarity in the liquid effluent. It is designed for municipal and industrial applications. It is available in 7 or 16...
  • Euroby: Vacuum belt presses
    Vacuum belt presses
    Euroby
    Euroby vacuum belt presses offer fully automatic, continuous product washing and separation. They are available in several configurations including open units, fitted with a vapour hood and fully-enclosed configurations that...
  • Euroby: Belt filter presses for non-food grade applications
    Belt filter presses for non-food grade applications
    Euroby
    Euroby belt dewatering filter presses are available as stand-alone machines in four model ranges, for municipal sludge, through paper and chemicals to specialist applications. They require minimal operator input, which makes...
  • Euroby: Filter press maintenance and refurbishment
    Filter press maintenance and refurbishment
    Euroby
    Euroby's fully qualified filter press engineers and technicians are available to carry out service, maintenance and process optimisation on all types and makes of filter presses. The company specialises in filter press...
  • Euroby: Polypropylene filter plates
    Polypropylene filter plates
    Euroby
    Euroby offers a range of polypropylene filter plates are with standard recessed or membrane inflation. They can also be supplied with cloth wash and cake discharge systems. The company provide filter plates both to press...
  • Evoqua Water Technologies: J-Mate® continuous sludge dryer
    J-Mate® continuous sludge dryer
    Evoqua Water Technologies
    The J-Mate® continuous sludge dryer is designed as a second stage dryer for further reduction after mechanical dewatering by a J-Press® filter press, belt press, centrifuge or other dewatering system. It is designed to...
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Dewatering presses- helping you find the best companies for your project.