Abstract
Ultra high pressure underwater shock waves were applied to the sterilization of microbes. We used the imploding detonation of propane-oxygen to occur the ultra high pressure underwater shock waves. We investigated the imploding detonation using an engine type liquid sterilization apparatus having a precombustion chamber and two sample holders with inner volume of 5L. This apparatus can work 60〜90 rpm continuously and sterilize the water of 20m^3/h. We investigated the pressure of underwater shock waves relation with engine speed and supplied pressure. We found that we could generate about 40〜60 MPa underwater shock waves in the sample holders.
