The Use of Dissolved-Air Flotation in Redueiug The Polutaut Load on The Rapid Sand Filtration..

Abstract

Flotation rs an important process m the water treatment. Flotation can be described as a gravity separation process m which gas bubbles attach to sollid particles to cause the apparent density of the bubbles­ solid agglomerates to be less than that of the water, thereby allowing the agglomerate to float to the surface. Different methods of producing gas bubbles give rise to different types of flotation . processes: electrolytic

flotation,

flotation.

dispersed-air flotation, and dissolved-air