The Gravi-Tek employs a single porous belt to separate the liquid from the flocculated feed sludge via gravity, which in turn produces a thickened sludge of up to 10% dry solids.

Gravi-Tek significantly reduces sludge volumes in order to give improved onward digestion or dewatering / drying. The overall effect is minimised sludge quantities to give minimal handling and transportation, thereby reducing costs.

Additionally, the unit is compact and fully self-contained for odour control.

• Single porous belt for thickening
• Integral odour containment
• Integral filtrate containment
• Simple civil base
• Stainless 304 Construction

• High volume reduction
• Reduced transport costs
• Automatic and continuous operation
• Simple operation and maintenance
• Suitable for outdoor installations
• Controlled thickened sludge output
• Low polymer and power consumption

Municipal Sludges

• Activated Sludges
• Primary Sludges
• Mixed Sludges

Industrial Sludges

• Dairy
• Paper
• Food and Beverage
• Fish Process
• Mineral
• Chemical

Associated Services

Veolia Water Solutions & Technologies can provide the following service activities :

• Pilot trials in the Lab or On-site
• Maintenance and process optimisation contracts
• Hire / Temporary mobile solutions

The Gravi-Tek Sludge thickening system utilises a simple and robust design for the Belt steering and tracking. This approach simplifies both the operation and maintenance associated with this unit.

The table shows generic performance levels for the Gravi-Tek System given on a per metre belt width basis.