The EUROMAC sludge thickener is installed in sedimentation tanks or settling basins and is mainly used in the primary decanting process. It is equipped with a picket structure and scraping blades connected to the central pivot which, by rotating, brings the gases present in the water to the surface and simultaneously helps convey the detritus (sludge, etc.) to the centre of the lower part of the tank, from where it is then extracted. The purified water, thanks to the sludge thickener, comes out through the overflow blade, entering a drainage duct.