Hydroflux - Model ROTAMAT Ro6 -Longitudinal Grit Trap

The HUBER Longitudinal Grit Trap ROTAMAT® Ro6 is designed in compliance with DWA recommendations or customised to meet specific customer requirements. Available in both aerated and unaerated versions, the selection depends on factors such as the ratio between storm and dry weather flow and the presence of downstream grit treatment facilities. The system efficiently separates grit, which is transported via a horizontal conveyor to an inclined grit removal screw. This screw dewaters and compacts the grit before discharging it into a container or directing it to a HUBER Coanda Grit Washer RoSF4 T for further treatment. If required, the separated material can also be pumped to an external grit washer.

For aerated grit traps, grease and fat separation is an additional feature. The aeration system generates a flow that transports grease through a slotted scum board into a separate grease chamber. Unlike many competitor systems, the HUBER Longitudinal Grit Trap ROTAMAT® Ro6 includes a forced grease transport mechanism, using a grease removal paddle with a guided scraper to ensure complete removal along the entire grit trap length. This prevents anaerobic digestion and associated operational issues. Additionally, an integrated grit washer can be installed at the plant outlet, where upwardly directed service water fluidises the grit to separate lighter organic particles. A rabble rake further enhances separation before the clean grit is conveyed by a classifying screw, statically dewatered, and discharged into a container for disposal or reuse.