摘要
以电解水法产生含臭氧的水溶液，最高浓度可达１９ｍｇ／Ｌ。开机后其浓度随水流速度增大而下降。臭氧水的半衰期在４℃、１０℃、２０℃与３０℃下分别为１３２、１２８、２７、６ｍｉｎ。１０ｍｇ／Ｌ臭氧水作用１ｍｉｎ，对大肠杆菌、金黄色葡萄球菌的杀灭率均达１００％。浓度为２０ｍｇ／Ｌ与８０ｍｇ／Ｌ的臭氧水分别对绿脓杆菌与白色念珠菌作用１ｍｉｎ，杀灭率亦为１００％。浓度为１２０ｍｇ／Ｌ者对枯草杆菌黑色变种芽胞作用２０ｍｉｎ，杀灭率达９９９％。
When the ozone water
generator (OW-001) which produces ozone water by mixing and dissolving ozone produced by
electrolysis of water with running tap water was operated continuously for 3 min, 10 min, 30 min
and 50 min at a water flow rate of 210 ml/min, the ozone concentration in the water obtained
was 1056, 1392, 1800 and 1920 mg/L respectively. The ozone concentration in the water
decreased with increasing water flow rate. The half life of ozone (ozone concentration
decreases by 50%) in water was 132, 128, 27 and 6 min at 4, 10, 20 and 30
respectively.Suspension quantitative germicidal test indicated that the water containing 10
mg/L ozone with a 1 min contact time killed 100% of Escherichia coli and Staphylococcus
aureus, the water containing 20 mg/L and 80 mg/L ozone with a 1 min contact time also killed
100% of Pseudomonas aeruginosa and Candida albicans respectively and the water
containing 120 mg/L ozone with a 20 min contact time could kill 999% of Bacillus subtilis var.
niger spores. Prolongation of contact time did not raise significantly the killing rate.
出处
《中国消毒学杂志》
CAS
1999年第2期69-73,共5页
Chinese Journal of Disinfection
关键词
臭氧水
杀菌作用
稳定性
消毒剂
试验
ozone watergermicidal effectEscherichia coliStaphylococcus aureus Pseudomonas
aeruginosaCandida albicansBacillus subtilis var. nigerbacterial spore stability
