In order to investigate different influencing parameters acting on ultrasonic demulsification effect

a comprehensive analysis of ultrasonic intensity

dehydration temperature

acting time and emulsion water content was carried out with emulsified waste oil and machinery oil as experimental materials.Results indicate that

with ultrasonic intensity and demulsification temperature increasing

the displacement and demulsification effects of ultrasound enhance.With the increase of ultrasonic time

demulsification velocity enhances rapidly at first and then tends to slow.Water content of emulsion takes on complex influencing laws

which is depended on water droplet granularity distribution in waste oil emulsion and the characteristics of ultrasonic demulsification.Besides

oil viscosity and density affect ultrasonic demulsification greatly.The demulsification of oil with higher oil viscosity and density is less affected by ultrasound intensity

while it is sensitive to the dehydration temperature.