电解式臭氧空气净化消毒机消毒性能的研究

STUDY ON DISINFECTION PERFORMANCE OF ELECTROLYSIS-TYPE OZONE AIR-PURIFYING DISINFECTOR

目的了解电解式臭氧空气净化消毒机消毒性能。方法采用模拟现场和现场试验方法以及仪器法对该空气净化消毒机进行了消毒效果及臭氧浓度测定。结果在20 m3气雾室内启动该臭氧空气净化消毒机运行5min空气中的臭氧为2.1 mg/m3,30 min为50.7 mg/m3。在60 m3密闭的房间内开机运行30 min臭氧浓度为10.7mg/m3,让其自然衰减70 min或开窗通风15 min臭氧浓度下降为0.13 mg/m3。在20 m3气雾室内开机作用30min,对人工污染在空气中的白色葡萄球菌平均杀灭率达99.96%以上;在60 m3的密闭房间开机30 min,对空气中自然菌平均消除率达到93.00%以上。结论电解式臭氧空气净化消毒机在短时间内可产生较高浓度的臭氧,对室内空气中白色葡萄球菌和自然菌杀灭效果较好。

Objective To know the disinfection performance of electrolysis - type ozone air - purifying disinfector. Meth- otis Simulated on - the - spot and on - the - spot test methods and instrument method were used to determine the disinfec- tion efficacy and ozone concentration of this air - purifying disinfector. Results In a 20 m3 aerosol chamber, operation of the ozone air - purifying disinfector for 5 min generated ozone 2.1 mg/m3 in air and operation for 30 min generated ozone 50.7 mg/m3. In a 60 m3 closed room, the ozone concenteration was 10.7 mg/m3 after operation of the disinfector for 30 min and decreased to 0. 13 mg/m3 after natural attenuation for 70 min or opening the window for ventilation for 15 min. In a 20 m3 aerosol chamber, operation of the disinfector for 30 min eliminated over 99.96% in average of artificially contaminating Staphylococcus albus in air. In a 60 m3 closed room, operation of the disinfector for 30 min eliminated over 93.00% in average of natural bacteria in air. Conclusion The electrolysis - type ozone air purifying disinfector can produce high concentration of ozone in a short time and has good efficacy in killing S. albus and natural bacteria in indoor air.