Dissolved air flotation system is the large amount of fine air bubbles in the water, the air to form a highly dispersed fine bubbles adhered to the suspension on the particles, resulting in a state of less dense than water, so that the principle of buoyancy floating in the water, in order to achieve a solid - Liquid separation water treatment equipment . Air flotation is divided into super-effect shallow air flotation , vortex-concave air flotation , and advection air flotation. At present, it has applications in water supply, industrial wastewater and urban sewage treatment . The advantages of air flotation are that its solid - liquid separation equipment has the characteristics of low investment, small floor space, high degree of automation , and convenient operation and management. It is suitable for water treatment with more algae.

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