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Dissolved air flotation pump (DAF), which is mainly used in wastewater treatment system, is a reliable and proven process for purification. 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.