Abstract
AbstractFor saturation of water treated with atmospheric air in a dissolved air flotation (DAF) system and the production of microbubbles, air was introduced through the suction pipe of a centrifugal pump. The operating conditions of the centrifugal pump were adjusted to avoid the occurrence of cavitation phenomena. The novel technique was applied for the treatment of oily water in a DAF pilot prototype. A central composite rotational design (CCRD) was used to determine the high efficiency of the separation process. In addition to this high degree of oil‐water separation, the technique reduces space and energy costs in comparison to conventional processes of saturation of the effluent treated with compressed air.
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