Complex Influence of Intense Electric Fields upon Ozone and Free Radicals from Aqueous Solutions

摘要

Additionally to residual ozone, in processed aqueous solutions using intense electric fields, free radicals are present and determines changes of a variety of physical parameters-chemical of solutions. Ozone and free radicals remaining in the aqueous treatment processes are primarily responsible for harmful inhibiting, but also are useful for biostimulation processes of living environments (increasing the speed action of polymorphonuclear leukocytes in the healing of severe infections, changes of the pattern of collagen regeneration during ulcerations healing). This paper presents the results of a multidisci-plinary research, with extensive scientific and technical aspects. Intense electric fields, especially using corona point or filiform discharge electrodes, used in specially designed treatment cells and the processes of air ionization, generates and trains a variety of electrical charge carriers, which have sufficient energy in order to brake different gas molecules, in order to produce oxygen, or to determine the generation of ozone and free radicals in retention solutions or in the present environment. The electric field parameters, the intensity, the nature and shape of high voltage, exposure time, but also the characteristics and structure of cell treatment (multipoint, filiform or brush type electrodes), gap size or the step between the discharge electrodes, all are important parameters which determines the presence and concentration of ozone and free radicals which, present in the processed aqueous solutions.