摘要
目的研制适用于应急处置的便携式二氧化氯雾化消毒机(简称消毒机),以快速实施密闭小空间消毒作业。方法通过气体提纯和反复重溶再过滤提取高纯度二氧化氯,利用分光光度计原理、高频振荡或高压气体实现消毒机的“定时、定量、定浓度”智能控制;通过空气微生物采样器采集样本,进行空气消毒模拟现场试验和空气消毒现场试验,细菌定量检测对该消毒机的灭菌效果进行检测。结果该消毒机包含原料供应系统、反应系统、液体雾化系统及智能控制系统。当消毒机设定二氧化氯浓度为200 mg/L时,在20 m^(3)气雾室开机消毒30 min,对室内空气中白色葡萄球菌消除率均>99.90%;在54 m^(3)的试验场所中开机消毒60 min,对空气中自然菌的消除率均>90.0%。当浓度设定为100 mg/L时,在1 m^(3)的气雾室内开机消毒120 min,空气中未检出存活细菌。结论该二氧化氯雾化消毒机操作简便,对密闭空间的空气细菌繁殖体具有较好的杀灭效果。
Objective To develop a portable chlorine dioxide atomizing disinfection equipment(referred to as disinfection equipment)with applicability for emergent biohazard disposal,so as to quickly carry out the disinfection in a small confined space.Methods High purity chlorine dioxide were extracted by gas purification and refiltration during repeated redissolution.After using the design principle of spectrophotometer,high-frequency oscillation or high-pressure gas,we realized the intelligent control of“timing,quantitative and concentration”of the disinfection equipment.Samples were collected through the air microorganism sampler,and we carried out air disinfection simulation field test,air disinfection field test,and quantitative detection of bacteria to detect the disinfection effect of the disinfection equipment.Results The disinfection equipment includes raw material supply system,atomization system and intelligent control system.When the chlorine dioxide concentration of the disinfection equipment was set at 200 mg/L and the disinfection equipment was turned on for 60 min in a 20 m^(3)aerosol chamber,the elimination rate of Staphylococcus albicans in the air was above 99.90%,and the elimination rate of natural bacteria in the air was greater than 90.0%when the disinfection equipment was turned on for 60 min in a 54 m^(3)test site.When the concentration was set at 100 mg/L and the disinfection equipment was turned on for 120 min in a 1 m^(3)aerosol room,no viable bacteria were detected in the air.Conclusion The chlorine dioxide atomizing disinfection equipment is easy to operate and has a good disinfection effect on the air bacterial propagation in the confined space.
作者
姚宏武
李鼎
李丞
闫海峰
满晓丽
闫中强
魏秋华
刘运喜
YAO Hong-wu;LI Ding;LI Cheng;YAN Hai-feng;MAN Xiao-li;YAN Zhong-qiang;WEI Qiu-hua;LIU Yun-xi(The First Medical Center,Chinese PLA General Hospital,Beijing 100853;Shanghai Cleanbay Environment Science&Technology CO.,LTD;The Second Medical Center,Chinese PLA General Hospital;Center for Disease Prevention and Control of People's Liberation Army,China)
出处
《中国消毒学杂志》
CAS
2022年第12期881-884,888,共5页
Chinese Journal of Disinfection
基金
军队生物安全项目(2020-YJXTGCWQS-X9288)。
关键词
便携式
雾化消毒机
二氧化氯
杀菌效果
portable
atomizing disinfection equipment
chlorine dioxide
disinfection effect
