Grit separation
The grit chamber design It is available in both aerated and unaerated versions. The choice between the two options depends on factors such as the storm-to-dry weather flow ratio and whether additional grit treatment systems are planned or in place.
Grit removal
The horizontal grit conveyor moves the separated grit particles to the inclined grit removal screw within the grit trap. The inclined screw dewaters the material and discharges the compacted grit into a container or directs it to a subsequent HUBER Coanda Grit Washer RoSF4 T. Alternatively, the grit can be pumped to the grit washer.
Grease separation and removal
The separation of fats and grease is possible only when using aerated grit channels. The grease is collected in a separate chamber, with a slotted scum board acting as the partition between the grit trap and grease chambers. The aeration system within the grit trap chamber generates flow that carries the grease through the slotted scum board into the grease chamber.
Unlike many competitor systems, the HUBER Longitudinal Grit Trap ROTAMAT® Ro6 ensures the forced transport of grease separated on the water surface into the grease collection tank. This is achieved through an integrated grease removal paddle, which features a guided scraper that effectively removes the grease layer from the grease chamber. The paddle ensures thorough grease removal along the entire length of the grit trap, preventing any anaerobic digestion process that could result from incomplete grease removal.
Optional integrated grit washing
In this system, the horizontal grit conveyor transports the separated grit directly to an integrated grit washer at the Complete Plant outlet. Service water is introduced upward into the lower part of the grit washer, fluidizing the grit and allowing the lighter organic particles to separate from the denser grit. This separation process is aided by a stirrer rabble rake. Once the organic material is removed, the clean grit is automatically collected by a classifying screw, dewatered statically, and then discharged into a container.
