Gas-Liquid Cavitation Chemistry
As described in Chapter 3, the source of cavitation chemistry is the phenomenon of cavitation, which is largely caused by the reduction of pressure within a liquid. In an ultrapure system, a large pressure reduction will be required to form the cavities. However, cavities can be formed with a small pressure reduction if there are small amounts of dissolved or undissolved impurities present in the bulk liquid. The cavities can also be formed at liquid-solid interfaces, as is the case in many gas-liquid-solid cavitation-induced transformations. Possible sites of the reaction induced by cavitation were graphically illustrated in Figure 1.5. We examine here the chemical transformations induced by the cavities that are generated by either acoustic or hydrodynamic forces.
KeywordsChemical Oxygen Demand Fumaric Acid Cavitation Bubble Ultrasonic Irradiation Cavitation Erosion
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