Experimental Investigation And Use Of The Hydrodynamical Cavitation Technique

As mankind's activity the water body was polluted ,which result in the headwaters deterioration. It has been influenced the people's healthy body, being people has been researching various decontamination technique and craft to wipe off various pollutant when they wake up to the harmful of microorganism and the chemistry material in the water. But, with the quick development of the industry, the harmful artificial in water synthesize of the chemistry material and living creature increased year by year, which was difficult to be decomposed by the traditional water processing craft. Such as: Physical method,Chemistry method, the living creature method etc.all of which can't been able to satisfy with the new environmental protection request, so some new techniques appeared recently . The high class oxidizes technique, the super and critical water oxidizes technique, catalyst wet type oxidize technique, the ozone oxidizes and film technique. These methods have each other of merit and shortcoming, some methods can't make widely available for the higher cost, so it is need to develop the new cheaper water processing technique to satisfy people's demand.Cavitation was a kind of very complicated fluid phenomenon, cavitation bubbles while exercising and collapsing in the liquid can give out partial heat high pressure, light, turn on electricity, pound at wave, high speed to shoot and flow an extreme physical condition etc.This can make out the chemical reaction of the hard realization that in the general terms cannot carry out. In the water power machine, the cavitaion should be avoided as far as possible, in order to prevent from damages the machine, but this kind of characteristics also can be used by us. after 80's, along with big power ultrasonic technical development, this academics of ultrasonic chemistry develops quickly, we have made certain progress to decline poisoned organic matter of the solution water by making use of the ultrasonic cavitation , but this handles quantity of equipment be subjected to restricte, falling through a large-scale application. All countries scholar have been looking for new cavitation to replace the ultrasonic cavitation technique, the hydrodynamical technique have lower cost and equipment simpler characteristics than the light or particle cavitation , so it was valuable of...