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Home -Product - Dissolved Air Flotation - DAF
Dissolved Air Flotation - DAF
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BENEFITS:
- Superior Effluent Quality
- Reduced Footprint
- Maximum Solids Recovery
- Minimum Operational
- Reduced Capital Cost
FEATURES:
- Cross Flow
- Progressive Water Extraction
- Advanced Air Saturation System (NIKUNI)
- Plate Pack System (Optional)
- Cone Bottom Sludge Removal
- 5-10,000 Gpm System Flow Designs
- Polypropylene or Stainless Steel Construction
- Made in the USA!!
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Dissolved Air Flotation (DAF) technology is the process where suspended solids, oils & greases, and other impurities are separated from water slurries by a process of dissolving air into water. Micro-bubbles interact with the particles to cause them to float to the surface of a vessel where they are skimmed and separated.
The WWW/RESOURCE DAF represents the next generation in DAF design. This system can achieve removal efficiencies and effluent qualities far superior to traditional DAF systems. Dissolved Air Flotation (DAF) is the process whereby micro-air-bubbles cause suspended materials to float to the surface of a vessel to achieve liquid/solids separation. In the WWW/RESOURCE DAF, the wastewater first enters the low shear mixing pipe flocculator where coagulants and flocculants may be introduced to increase the particle size along with "whitewater." Whitewater is a mixture of a portion of the DAF effluent, which has been saturated with atmospheric air via the Nikuni air dissolving technology. The wastewater then enters the vessel across the length of the system. The velocity of the water is significantly reduced to maximize separation potential. Inside the vessel, the microbubbles, which have attached to the particle surface affect the particle density, cause the suspended solids to float to the surface where a chain and flight skim them from the surface into a top cone. Heavy sand and grit particles settle into the cone bottoms, where a timer function controls the removal. The "clean" liquid is continuously removed at several points inside the vessel and passes over pipe weirs into an effluent box. From the effluent box, the wastewater gravity feeds out of the system.
WWW"s polypropylene constructed DAF system is the first in kind and provides tremendous treatment flexibility. Its wide range of pH tolerance allows treatment of wastewater at ranges where impurities can be removed more efficiently and cost effectively. See Polypropylene Characteristics to learn more about the benefits of this material.
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