Working Principle:

Dissolved Air Flotation

Dissolved air flotation (DAF) is a reliable and proven process for purification in wastewater systems. DAF is used for the easy separation of suspended matters in liquids. The DAF System works by saturating the process water with air under high pressure which is then released to normal pressure and piped into the wastewater tank. The micro bubbles generated during pressure release work to attract suspended particles in the liquid and float them to the surface where they are then skimmed away. 

Application:

DAF application include the treatment of oilwater emulsions, fat separations, phosphate precipitations and heavy metal precipitations as well as final sedimentation at bio-treatment plants. Multistage flotation plants are a solution for the treatment of special waste.

Further Allication:

1.Fuel Production

In the processing of regenerative energy carriers such as biofuel, wood, waste fractions with high heat value, or animal
meal to synthesic gas the inert CO2 has to be washed out. A compressor forwards the gas into an absorption cell, where it flows ascendingly through a support medium aggregate. This aggregate is being sprayed fromabove with water that is conveyed by an EDUR multiphase pump. During this process the water is enriched with the CO2 out of the synthesis gas. Afterwards the water is led into a desorption tank, in which most of the CO2 will outgas. As this water still is saturated for 100%, gas bubbles occur during priming, that however are soluted again by the EDUR multiphase pump - the circuit starts again.
2.Treatment of Cooling Lubricants

For the treatment of nonpolluting cleaned cooling lubricants for example out of the milling process for steel profiles the water-oil mixture does flow through a collecting basin with a sludge trap towards an abstraction tank and from there it is transported into a sedimentation tank. EDUR multiphase pumps recycle the medium being primed with corresponding chemicals in the flotation system

3.Mineral Processing

Most copper mining depends on crude ore that is cracked,grinded in rock crushers and subsequently supplied towards the flotation. Fine air bubbles transport the small mineral particles to the water surface and keep them in the flotate. By means of the water-air mixture and adding of flotation additives at the same time the copper ore is separated from other ores. The ore concentrate subsequently is smelt in the following process.

Advantages

Contact

Website:

Contact:Grcae Liu

Phone: +86-574-86995053  Fex: +86-574-86995067 

Address:  167-16 Lushan West Road, Free Trade Zone, Ningbo,  Zhejiang,315806,China

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