Sludge can be difficult to thicken using the customary methods. Foamy sludge rising strongly to the surface is an example of such sludge. Flotation thickening is often used to thicken special sludges. This requires a large capacity of the dispersion water system and very efficient dissolution of air into the water.
We provide special types of dispersion water pumps for challenging conditions. Attention must be paid to chemical precipitation and correct mixing in the case of flotation thickening.