HILLER centrifuge technology in the sewage treatment process

Schematic diagram of a sludge treatment line with Hiller decanter centrifuges

Reduced viscosity and improved pumping properties

Up to 40% reduced viscosity and significantly improved pumping properties facilitate sludge transport in pipes – directly from the centrifuge and without additional equipment.

Increased degradation of the organic content through anaerobic fermentation

Enables longer retention time in the digestion tower and thus more efficient digestion.

Increased gas yield

Increases biogas production, resulting in energy and economic benefits.

Improved dewatering behaviour

Maximises drainage potential, reducing transport and disposal costs.

More capacity in the digestion tower

Reduction in the volume of thickened sludge, significantly increasing the capacity of the existing digestion tower without additional investment.

No recirculation of contaminated cell water

No cell water (lysate) enters the centrate. No recirculation of highly contaminated centrate.

Optimised digestion thanks to reduced foam formation

Reduced foam formation in the digestion stage.