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Noggerath Circular Grit Chamber GCC

With 20 years of operational experience, the Noggerath® Circular Grit Chamber GCC has established itself as a tried and tested solution for the removal of grit and other settleable solids in wastewater treatment processes. Sedimentation is effectively prevented in downstream conduits, pump sump, channels and aeration tanks, and moving machine parts are consistently protected from abrasion.

Unique Selling Point

  •     Compact construction volume due to low space requirement
  •     Low investment and operating costs
  •     Ease of installation
  •     High grit capture rate
  •     High operational reliability
  •     Low and easy maintenance


In addition to the tangential inflow area, which creates a spiral flow in the tank, the Noggerath® Circular Grit Chamber GCC has a paddle system to improve hydraulic efficiency. This paddle system also ensures a uniformly high grit separation, even with varying inflow capacities. 

After a full circulation, the wastewater flows into the outlet channel above the inlet channel. The paddle system is installed vertically in the tank and operates radially, creating a spiral flow (vortex) in the center of the tank with a vertical direction. 
The lighter organic matter is thereby lifted and directed back into the stream of wastewater. Heavy mineral matter settles in the center of the tank, in the grit collection shaft, and is transported from there, by means of a pump or air-lift pump, for further processing. 
The grit trap tank is constructed on site in concrete. It has a level bottom and a central grit collection hopper. The construction of the tank is generally deemed to be provided locally.


Hahnstätten WWTP

The wastewater treatment plant of Hahnstätten in its current form is charged with a population equivalent (PE) of 15,000. It was commissioned in 1994.


Grit Treatment

Aqseptence Group grit classifias and grit washers are utilised to reduce the water content, or respectively the organic content, in wastewater treatment processes and thus contribute to both cost effectiveness and the protection of the...


Locations and Contact


Aqseptence Group Carpi Srl, Limidi

Sales and Manufacturing Location
Via Pitagora 30
41010 Limidi Di Soliera, MO

Tel: +39 059 525720

Fax: +39 059 525443



Aqseptence Group SAS, Availles-en-Chatellerault

Sales and Manufacturing Location
Zone Industrielle
86530 Availles-en-Châtellerault

Tel: +33 5 4902 1600

Fax: +33 5 4902 1616



Aqseptence Group GmbH, Bückeburg

Sales Location
Ziegeleiweg 2
31675 Bückeburg

Tel: +49 5722 882 0

Fax: +49 5722 882 282



Aqseptence Group GmbH, Aarbergen

Sales and Manufacturing Location
Passavant-Geiger-Strasse 1
65326 Aarbergen

Tel: +49 6120 280

Fax: +49 6120 28 2182


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