The Grit-Cleanse™ is generally manufactured from stainless steel grade 304L or grade 316L and is an enhanced Series 3 Classifier with a 'mini' dynamic separator over the top of the classifier hopper .

The principle of the process relies on the use of a 'mini' dynamic separator located over the hopper. The separator is fed at a continuous hydraulic loading rate from the grit removal process such as the Grit King^® Separator at a flow of 20 l/s .

Flow enters the vessel via a tangential intake pipe to set up a rotary flow pattern within the unit. Lighter organic material is separated from the dense grit material by the process of dynamic separation.

Grits are discharged into the reception chamber from the base of the vessel. Organic material is discharged through the top of the dynamic separator. A Hydro-Brake^® Flow Control is placed in the base of the vessel to provide the flow split between overflow and underflow.

A maximum of 10 l/s is discharged into the reception chamber where the standard screw classification takes place.

A spray bar can also be mounted over the inclined screw for final washing of the grit prior to discharge to a grit skip.

The selection of a Series 3 Classifier or a Grit-Cleanse™ is dependant upon the performance requirement for faecal organics in the discharged grit and the ratio of peak flow to Dry Weather Flow (DWF) of the site.

The unit is normally used as part of the Grit King^® Process however it is also used as a stand alone unit on small Sewage Treatment Works.