Dewatering systems for sludge

Indaver Impex uses various techniques for dewatering sludge mechanically. These can be permanent or mobile.

Decanter centrifuges

A decanter centrifuge, also known as a decanter, is a horizontal centrifuge. The separation between a solid phase and one or more liquid phases occurs by means of sedimentation.

Indaver Impex has various makes of decanter centrifuges with varying capacities from 0.3 to 4 tons of dry matter per hour. By installing multiple units we can upscale capacity according to our needs.

Belt filter presses

A belt filter press uses a filtration technique for sludge dewatering. This press consists of two filter belts between which the sludge is pressed.

Indaver Impex's (mobile) belt filter presses have a capacity ranging from 10 to 100 m3 per hour.

Chamber filter presses

With chamber filter presses dewatering occurs by pumping the sludge under pressure into an enclosed area (chamber). The chambers consist of a number of connected plates each fitted with a filter cloth.

Indaver Impex has both mobile and permanent chamber filter presses with a capacity of 1.3 to 9.9 m3. We also have a number of membrane filter presses.

Gravity tables

A gravity belt thickener or gravity table is a filter belt that moves on rollers on which the sludge to be thickened is placed.

Indaver Impex has mobile gravity tables with a range of capacities. The gravity tables are mainly used to thicken sludge, whilst the sludge can still be pumped.


Our mobile systems  plants come with their own power supply. The systems are equipped with automatic polymer preparation and dosage, pumps and sludge cake removal systems. If you have a temporary requirement for extra capacity, you can hire a range of system units from Indaver Impex.

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Jan Guiljam
Account Manager steel, food & automotive industry
t +31 113 74 43 02