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HUBER Vortex Grit Chamber VORMAX Grit separation through constant rotation and tangential feed introduction

  • High grit separation through tangential feed introduction at bottom level
  • High throughput capacity of up to 3,000 l/s (10,800 m³/h)
  • Worldwide well-proven, reliable technology

Grit separation from wastewater helps prevent operational problems such as grit sedimentation, increased wear and blockages.

HUBER Vortex Grit Chamber VORMAX
HUBER Vortex Grit Chamber VORMAX
HUBER Vortex Grit Chamber VORMAX installation with HUBER Grit Washer RoSF4
HUBER Vortex Grit Chamber VORMAX installation with HUBER Grit Washer RoSF4
Reliable bull gear drive for the stirrer with airlift
Reliable bull gear drive for the stirrer with airlift
Impressive concrete construction for the HUBER Vortex Grit Chamber VORMAX
Impressive concrete construction for the HUBER Vortex Grit Chamber VORMAX
Safe from any flood wave - above ground installation of HUBER Vortex Grit Chamber VORMAX
Safe from any flood wave - above ground installation of HUBER Vortex Grit Chamber VORMAX
HUBER Vortex Grit Chamber VORMAX
HUBER Vortex Grit Chamber VORMAX
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Design sketch: HUBER Vortex Grit Chamber VORMAX
Design sketch: HUBER Vortex Grit Chamber VORMAX

Design and Function

Design sketch: HUBER Vortex Grit Chamber VORMAX
Design sketch: HUBER Vortex Grit Chamber VORMAX

Grit separation with the HUBER Vortex Grit Chamber VORMAX starts already in the inlet channel to the grit trap. Like in an unaerated longitudinal grit trap the grit sinks downs to the channel bottom from where it is transported into the circular grit trap along with the wastewater flow. A tangential rotational movement is generated due to the curved design of the (mostly concreted customer’s) concrete tank.

A constantly rotating stirrer helps support the wastewater circulation within the grit chamber ensuring a constant velocity of rotation within the complete grit trap system even with greatly varying hydraulic conditions. Due to the constant radial rotation, caused by a secondary flow near to the bottom, the solids are very quickly collected within the centre of the grit chamber from where thy then pass into the bottom of the grit collection tank. The grit-free waste- water then exits and flows onto the next treatment step.

Centrifugal or airlift pumps can then deliver the collected solids from the grit collection tank into a grit classifier or grit washer where the solids can then be subsequently separated and dewatered and organic particles removed.

Benefits of the HUBER Vortex Grit Chamber VORMAX

  • Compact, space-saving design
  • High grit separation efficiency
  • Low energy demand
  • Throughput capacity up to 3,000 l/s (10,800 m³/h)
  • Low pressure loss
  • Variable inlet and outlet arrangement
  • Minimum wear, reduced maintenance
  • Optional subsequent grit washing
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