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NEW SANITATION SERVICE BY TREATMENT WITH OZONE Ozone and its physical characteristics The ozone (O3 symbol) is a gas from the characteristic garlic odor, whose molecules are formed by three atoms of oxygen. Christian Friedrich Schönbein found out, during experiments that slow oxidation of white phosphorus and water electrolysis. Its chemical structure is a resonance hybrid between three formulas possible limits, making it a highly reactive molecule. Ozone as a disinfectant and disinfectant The oxidizing action explicated by ozone has meant that since its discovery was used as a bactericide, fungicide and inactivating viruses. It was initially used as a disinfecting agent in the production of drinking water, in France since 1906 and in Germany since 1972. The choice of ozone was based on the fact that it is more effective than other disinfectants towards a wider spectrum of microorganisms. The different bacteria show variable sensitivity to ozone: the Gram-negative bacteria are less sensitive than the Grampositive, spore-forming bacteria prove more resistant than the nonspore-forming. (Kim et al., 1999). Since the mechanism by which it acts ozone is lipid peroxidation, the cause of the varying sensitivity would be attributable to the different lipid composition of the bacterial cell wall (Khadre et al., 2001; Khadre and Yousef, 2001; Hoff, 1986). The inactivation of the virus has so far been less well studied than that of bacteria, it is known that also occurs rapidly after ozonation, even if it requires a supply of gas at concentrations higher than required for the bacteria (Kim et al ., 1999). it is observed, in fact, that the inactivation curves show a rapid reduction of crops up to 99%, the remaining 1% requires a longer time for total inactivation. Various studies on the sensitivity of the virus to ozone have demonstrated that viruses fitted membrane are significantly more sensitive than those that do not have them. The mechanism of action of ozone on virus is definitely not one of destruction, as in the case of bacteria, but inactivation; action would consist of ozone oxidation and subsequent inactivation of specific viral receptors used for the creation of the bond with the wall of the cell to invade. Would thus be stuck in the mechanism of viral replication at the level of its first phase: cell invasion. The table below shows the approximate times for the elimination of some pathogens. Inactivation of bacteria, viruses, fungi, molds and insects after ozonation (Sources: Edelstein et al., 1982; Joret et al., 1982; Farooq and Akhlaque, 1983; Harakeh and BUTLER, 1985; Kawamuram et al.1986) Body BACTERIA (E.Coli,Legionella,Mycobacteriu m, Fecal Streptococcus) VIRUS (Poliovirus type-1, Human Rotavirus, Enteric virus) MOULDS (Aspergillus Niger, vari ceppi di Penicillum, Cladosporium) Concentration Exposure time 0,23 ppm2,2 ppm <20 minuts 0,2 ppm 4,1 ppm <20 minuts 2 ppm 60 minuts FUNGUS 0,02 ppm (Candida Parapsilosis, Candida 0,26 ppm Tropicalis) INSECTS 1,5 - 2 ppm (Acarus Siro, Tyrophagus Casei, Tyrophagus Putrescientiae) <1,67 minuts 30 minuts AREAS OF USE OF SANITATION OZONE TECHNOLOGY PRIVATE SECTOR (Houses, condominiums, basements, toilets, facilities air conditioning, cars, trucks, RVs) PUBLIC SECTOR (Shops, bars, restaurants, hotels, post offices, banks, schools, waiting rooms) HEALTH SECTOR (Hospitals, hospital rooms, operating rooms, outpatient clinics, medical and dental clinics, veterinary studies) SECTOR ACTIVITIES 'SPORTS (Gyms, saunas, solarium, swimming pools, locker rooms) PRODUCTIVE SECTOR (Canteens, food industries, canneries, bakeries, workshops confectionery and ice cream shops, slaughterhouses, farms and stables). http://www.cgekosystemsrl.com [email protected] Phone +39 0185 381194 Phone +39 0185 386575 Fax +39 0185 386575