Description
Dissolved air flotation Description
The DAF unit technology uses extremely small air bubbles to lift suspended solids and oil to the top surface. The formed sludge layer is scraped into a sludge holding tank. The addition of coagulation and flocculation chemicals may be required to enhance the performance.
Removal efficiency is usually superior to gravity bases systems and often applied as polishing step (downstream of CPI).
The DAF unit can be supplied with a gas-tight cover, coagulation & flocculation dosing and mixing equipment and air-saturation by special pumps or in separate pressure vessel.
Dissolved air flotation Feature
Adjustable effluent weir troughs
Epoxy coated carbon steel tank
Factory tested
Seamlessly integrates with other Hydro-Flo offered wastewater products
Stand alone operation
Standard units can be manufactured for flows from 5 gpm to 3500 gpm and above, in a single above grade tank
Structural steel support legs
Dissolved air flotation Available Options
Access platforms with ladder or stairs
Automatic sludge pump out packages
Chemical pretreatment systems
Concrete tank designs for large in ground installations
Duplex systems for redundancy
Effluent monitoring
Effluent sampling
Explosion-proof design
Flash mix/flocculation tanks with mixers
Full FRP or stainless steel construction
Influent equalization
Influent / effluent lift stations
Instrumentation and controls
Removable covers with gaskets
Integral mechanical sludge thickener
On board reagent storage (day tanks)
Pilot size units for on-site testing
Potable water design
Special coatings
Sludge handling and dewatering
Dissolved Air Flotation Applications
Produced water polishing (off and onshore)
Refinery effluent polishing
(Petro)chemical in-process flows or effluents
Food, textile, automotive and steel industry
