Circular Dissolved Air Flotation (AeroCIRC) is similar to a conventional circular DAF, with a rotating scraper arm. However, the AeroCIRC normally includes a 60-degree hopper bottom meaning the DAF is completely self-cleaning.
The AeroCIRC incorporates the patented feature of an effluent actuator on the effluent line, for the hydraulic float removal. It also utilises Aerofloat’s proprietary Air Dissolving System.
The small quantity of fallen solids between cycles are re-floated through the recirculation stream to the Dissolver/Saturator prior to the introduction of wastewater. This means solids do not accumulate at the bottom of the DAF. The combination of the scraper and the hydraulic lift at the end of the cycle ensures all solids are removed from the DAF. Chain scrapers are not required, and the self-cleaning feature ensures a very attractive product offering.