Circular Dissolved Air Flotation (AeroCIRC DAF) is similar to a conventional circular DAF unit, with a rotating scraper arm. However, the AeroCIRC DAF normally includes a 60-degree hopper bottom meaning the unit is completely self-cleaning.

Dissolved Air Flotation (DAF) is a technique that removes fats, oils and grease (FOG) and suspended solids (SS) from wastewater. The AeroCIRC DAF utilises Aerofloat’s proprietary Air Dissolving System to create an innovative circular DAF unit. The AeroCIRC DAF incorporates Aerofloat’s patented feature of an effluent actuator on the effluent line, for the hydraulic float removal.

The small quantity of fallen solids between cycles in Aerofloat’s circular DAF unit 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 system.

The AeroCIRC DAF includes a 60-degree hopper that enables self-cleaning with a hinged scraper. The combination of the scraper and the hydraulic lift at the end of the cycle ensures all solids are removed from the system. Chain scrapers are not required, and the self-cleaning feature ensures a very attractive product offering.

Aerofloat’s circular DAF unit is part of its Dissolved Air Flotation product range. Aerofloat offers its patented proprietary technology as well as conventional treatment options from leading-edge suppliers to ensure the optimal design for your business.

Aerofloat works closely with its clients to create innovative wastewater treatment solutions that enable sustainable operations both now and into the future. Aerofloat’s clients also have access to Aerofloat’s team of engineers for ongoing advice and support long after project completion, ensuring ongoing efficient operations of your system.

To find out more about Aerofloat’s patented DAF technology or to discuss which product is best suited to your business’s needs, contact Aerofloat’s engineers.

Self Cleaning Circular DAF

The AeroCIRC DAF has a rotating scraper drive and 60-degree hopper bottom, enabling self-cleaning.

No Chain Scrapers

The rotating scraper makes for a very appealing product offering as there are no chains to maintain or replace on the DAF unit.

Hydraulic Sludge Removal Option

By adapting the AeroDAF patented feature of the hydraulic float removal, the top of Aerofloat’s circular DAF unit is periodically purged.

Superior Hydraulic Design

The central mixing chamber allows for an effective solids and air contact zone plus a radial downward flow path from the floating sludge blanket, enabling better separation of solids.

High Treatment Capacity

Aerofloat offers unique circular DAF units with treatment capacities from 10-250m3/hr.