Electric discharge in water as a source of UV radiation, ozone and hydrogen peroxide

Results are presented from investigations of multispark electric discharge in water excited along multielectrode metal-dielectric systems with gas sup ply into the interelectrode gaps. The intensity distribution of discharge r adiation in the region covering the biologically active soft UV (190 less t han or equal to lambda less than or equal to 430 nm) has been determined an d the absolute number of quanta in this wavelength interval has been measur ed. The potentiality of the slipping surface discharge in water for its dis infection is analysed. The energy expenditure for water cleansing is estima ted to be as low as similar to 10(-4) kWh 1(-1).