RESEARCH ON THE PHYSICOCHEMICAL PROPERTIES AND MICROBIOCIDAL EFFECT OF ACIDIC ELECTROLYZED OXIDIZING WATER

Objective To study the physicochemical properties and disinfection effect of acidic electrolyzed oxidizing water.Methods Physicochemical analysis methods and carrier quantitative germicidal test were carried out to observe the properties of acidic electrolyzed oxidizing water in laboratory.Results The pH value of the acidic electrolyzed oxidizing water was 2.47,the average oxidation-reduction potential was 1 192 mV,the average content of available chlorine was 56.6 mg/L and the average residual chlorides was 616 mg/L.The average killing rates for Staphylococcus aureus,Pseudomonas aeruginosa and Escherichia coli on carrier washed by this acidic electrolyzed oxidizing water for 3 min were 100%,while it needed 10 min for Candida albicans and Poliomyelitis virus and 25 min for Bacillus subtilis var.niger respectively.Conclusions The physicochemical properties of the acidic electrolyzed oxidizing water is up to the standards and this disinfectant has good antimicrobial effects for bacteria and virus on carrier under washing conditions.