The oil-water separation of emulsion wastewater in a certain mechanical processing plant is difficult, and the cost of outsourcing treatment is extremely high. Customized “ceramic membrane demulsification+efficient air flotation+vacuum evaporation” integrated pry equipment, with an oil removal rate of 99.7%. The evaporated distilled water is reused for workshop cleaning, reducing hazardous waste by 90% and reducing annual disposal costs by 800000 yuan.