The electrolytic air flotation method electrolyzes the wastewater, and a large number of hydrogen bubbles are generated at the cathode at this time. The diameter of the hydrogen bubbles is very small, only 20-100 microns, and they play the role of an air flotation agent. The suspended particles in the wastewater adhere to the hydrogen bubbles and float up with them, thus achieving the purpose of purifying the wastewater. At the same time, the hydroxide ionized on the anode acts as a coagulant, helping the sludge in the wastewater to float or sink.

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