一元液体二氧化氯消毒剂的消毒性能研究

目的研究一元液体二氧化氯消毒剂的消毒性能。方法采用理化分析试验和悬液定量杀菌试验方法,对该消毒剂进行了实验室观察,并进行了模拟现场和现场消毒试验。结果该一元液体二氧化氯消毒剂平均含量为664 mg/L,54℃储存14 d,其二氧化氯下降率为1.08%。用含二氧化氯49.6 mg/L对悬液内大肠杆菌和金黄色葡萄球菌作用5 min,平均杀灭对数值大于5.00。用含二氧化氯66 mg/L的消毒液,以8 ml/m3用量进行气溶胶喷雾消毒作用15 min,对汽雾室内人工污染的白色葡萄球菌的平均杀灭率达到99.90%以上;用相同浓度和用量对现场办公室内进行气溶胶喷雾消毒,作用30 min对室内空气中自然菌的的平均杀灭率为98.62%。结论该一元液体制剂二氧化氯消毒剂性能稳定,杀菌作用快速有效,空气消毒效果好。

STUDY ON DISINFECTION PERFORMANCE OF THE LIQUID MONOPHYLETIC CHLORINE DIOXIDE DISINFECTANT

Objective To study disinfection performance of the liquid monophyletic chlorine dioxide disinfectant.Methods Suspension quantitative germicidal test and physicochemical analysis were used to carry out laboratory observation on the disinfectant,and simulated test site and on-site disinfection trial were carried out.Results The average concentration of chlorine dioxide in the disinfectant was 664 mg/L.After storing at 54℃ for 14 days,its chlorine dioxide descending rate was 1.08%.The average killing logarithm value of Escherichia coli and Staphylococcus aureus exposed to the disinfectant containing chlorine dioxide 49.6 mg/L for 5 min was higher than 5.00.Spraying disinfection with aerosol of the disinfectant containing chlorine dioxide 66 mg/L at a dosage of 8 ml /m3 for 15 min killed more than 99.90% in average of artificially contaminating Staphylococcus albus in a fog room.Aerosol spraying disinfection of office with the same concentration and dosage for 30 min killed 98.62% in averaage of the indoor air natural bacteria.Conclusion This liquid monophyletic chlorine dioxide disinfectant has stable performance,fast and effective germicidal action and effective air disinfection.