The flotation machine is a water treatment equipment that generates a large number of fine bubbles in the water, causing air to adhere to suspended particles in the form of highly dispersed microbubbles. This creates a state with a density less than that of water, utilizing the buoyancy principle to float the particles on the surface, thereby achieving solid-liquid separation. The flotation machine is categorized into ultra-efficient shallow layer flotation machines, vortex凹陷flotation machines, and horizontal flow flotation machines. It finds applications in water supply, industrial wastewater, and urban sewage treatment. The advantages of the flotation machine include its solid-liquid separation capabilities, which are characterized by low investment, small land occupation, high degree of automation, and convenient operation and management.