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purpose of dissolved air flotation

what is a daf how does a daf work dissolved air

what is a daf dissolved air flotation (daf) is a water treatment process that clarifies wastewater by removing suspended solids. the removal is achieved by dissolving air in the water or wastewater under pressure and then releasing the air at atmospheric pressure in a flotation tank.

dissolved air flotation - an overview sciencedirect topics

dissolved air flotation operates on the principal of the transfer of floc to the surface of water through attachment of air bubbles to the floc. the floc accumulated on the surface known as the ‘float’ is skimmed off as sludge (section 7.19).the clarified water is removed from the bottom and is sometimes called the subnatant or ‘floated’ water.

dissolved air flotation -

the patented poseidon* daf uses dissolved air flotation technology to separate fine dispersed particles from process water and wastewater to reach your desired specifications. with the use of internal separation plates high efficiency clarification is provided in modern compact daf designs.

dissolved air flotation (daf) systems - evoqua

dissolved air flotation (daf) systems are designed to remove suspended solids (tss) biochemical oxygen demand (bod 5) and oils and greases (o&g) from a wastewater stream. contaminants are removed through the use of a dissolved air-in-water solution produced by injecting air under pressure into a recycle stream of clarified daf effluent.

dissolved air flotation (daf) systems fluence

our dissolved air flotation solutions provide high-quality high-capacity and efficient clarification. daf works by producing a stream of microfine bubbles that attach to solids and lift them to the surface where they can be removed by a surface scraping mechanism.

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