What kind of bacteria and poison can ozone disinfection in car maintenance projects?
Li Huaien et al observed the killing effect of ozone gas on Pseudomonas aeruginosa in the air. At 15 ° C, humidity 73%, ozone concentration 0.08-0.6ppm, the kill rate in 30 minutes reached 99.9%; Wu Xuezhou and other test ozone killing rate of E. coli 100%, the kill rate of Staphylococcus aureus 95.9%, the killing rate of Pseudomonas aeruginosa was 89.8%. According to the test of Gu Shizhen, the killing rates of ozone against Escherichia coli and Staphylococcus aureus were 99.7% and 99.9%, respectively. Ju Xijuan and other experimental ozone can kill 99.99% of Staphylococcus aureus in the air; Burleson and other tests will pass ozone gas into Staphylococcus aureus, Escherichia coli, Pseudomonas fluorescens, Salmonella typhimurium, F. sinensis In the phosphate buffer solution of Bacillus cholerae and Vibrio cholerae, the above bacteria were all killed after 15 seconds; Bai Xiqi and others found that the ozone aqueous solution has a strong bactericidal action, and the speed is extremely fast, and the concentration of 0.3 mg/L of the ozone aqueous solution acts for 1 minute. The killing rate of Escherichia coli and Staphylococcus aureus is 100%.
Yan Falin and other reports, under the action of 5.5mg / m? ozone for 45 minutes, can be 100% plastic bottle infected Bacillus subtilis black mutant spores 100%; Ju Xijuan and other reports, in the 1m? test cabinet, open The 500mg/h ozone generator can kill 99.95% of Bacillus subtilis black buds in the air for 60 minutes; Ouyangchuan and others under the dynamic test conditions, the ozone gas is passed into the dyeing well water, the ozone concentration reaches 3.8- At 4.6 mg/L, the effect was 39.99 minutes, and the killing rate of Bacillus subtilis black mutant spores was 99.999%.
Li Shaoqi et al found that the titer of hepatitis B surface antigen (HbsAg) decreased from 1:256 to 1:64 after 30 minutes of ozone concentration of 10.3 mg/m3. Shi Jiang et al reported that the use of ozone concentration of 13.6mg / m3 for 30 minutes, HbsAg destruction of 99.99%, the use of hepatitis A virus antigen (HAAg) damage 100%; Wolo and other experiments proved that 0.5ppm of ozone can inactivate air in the type A Influenza virus 99%; Herbold et al. reported 100% inactivation of poliovirus type I (PVI) at 20 ° C in water with an ozone concentration of 0.13 mg/L. The ozone inactivated virus is extremely fast. When the ozone concentration is 0.09 mg/L-0.8 mg/L, the phage T2 can be inactivated for 5-7 log values within the first 5 seconds of the reaction. When Finch found that the concentration of ozone in water was 40 μg/L, it took 20 seconds to inactivate the logarithm of E. coli phage ms2. Vaughn et al. compared the inactivation of ozone against rotavirus SA-H and human rotavirus type 2 at 4 ° C and found that both viruses were rapidly inactivated by 0.25 mg / L of ozone. Crpend et al. examined the inactivation of HIV in the serum after ozone treatment, and proved that when the ozone concentration is 4 mg/L, the titer is 106 CID50/mL HIV is all inactivated, and the virus titer is decreased by 6 Logarithmic value.
Wang Huaming et al reported that when the concentration of ozone was 9.6 mg/L, the killing rate of Aspergillus variabilis and P. syphilis was 100% for 100 minutes, 23 mg/L for Cladosporium, and 12.5 mg for B. L action for 35 minutes, Penicillium citrinum at 15.4 mg / L for 30 minutes, and Fusarium oxysporum at 15.5 mg / L for 20 minutes, can achieve 100% inactivation rate. For Aspergillus fumigatus, Alternaria alternata, Mucor mumarola, etc., the inactivation rate of 96.4% at 10-20 minutes when the ozone concentration is 3.85-10.7 mg/L. Wu Xuezhou and others found that the killing rate of ozone to penicillium was 93.8% in 30 minutes, and the killing rate against mucor was 100%. Bai Xiwei et al reported that the concentration of 15mg/L ozone can be 100% for 1 minute. Kill Aspergillus niger and yeast in the test.
Finch et al. compared the inactivation effect of ozone on the flagellate of the genus Giardia lamblia and the genus Giardia at 22 °C. When the Ct value was 0.86 mg·min/L, the strain of the genus Giardia was reduced by 4 The logarithmic value, when the Ct value is 2.5 mg·min/L, reduces the logarithm of D. gigas to four logarithms. Korich et al. compared the inactivation of ozone, chlorine dioxide and chlorine on the cryptospores of Cryptosporidium parvum in purified water. It was proved that 1 ppm of ozone can inactivate 90% of oocysts in 5 minutes and 1.3 ppm of chlorine dioxide. It takes 1 hour to work, and 80 ppm of chlorine takes 1.5 hours to achieve the same effect.