The invention relates to the field of cavitation treatment of liquid media as well as media, where the density of water or other liquid phase is over than 65-70% of the total weight as well as to treatment of the objects placed in the treated liquid media. The method cavitation treatment consists is that the vibration system with the liquid medium and the placed objects consists of the wall-surfaces, each surface of the system is the membrane fixed outline, for example on a rigid frame, having a natural frequency with due consideration of the apparent mass of the vibration generator equal to the fundamental mode, the radiation of ultrasonic waves to the liquid media is carried out simultaneously by all membranes of the vibration system, providing in the treated media the effect of superposition of waves with forming a standing acoustic wave or multiple waves with different frequencies the amplitude of resonant vibrations of each membrane is above the threshold of acoustic cavitation for the liquid media with objects located therein, the vibrations frequencies and phase characteristics of the membranes are chosen so that they can be the same or different to each other in order to maximize the desired cavitation effect factoring in the characteristics of the treated media, at that the vibration system can be of any shape, flowing or steady state mode of motion of the liquid media. The method takes an opportunity to improve the efficiency (power and amplitude of the acoustic wave, coherence) of cavitation effect on the treated liquid media and the objects placed therein while limiting the power of ultrasonic radiators.
