一种大气压冷等离子体消毒器水消毒及其影响因素的研究  

Study on the disinfection efficacy to water and the influence factors of a disinfector based on atmospheric pressure cold plasma

作　　者：刘南[1] 朱兵[1] 杜江[1] 何亚明[1] 周春碚[1] 熊鸿燕[2] 邓玲[2] 

机构地区：[1]重庆市疾病预防控制中心,重庆400042 [2]第三军医大学

出　　处：《中国消毒学杂志》2017年第4期297-299,302,共4页Chinese Journal of Disinfection

基　　金：重庆市医学科研计划项目(2012-1-081);重庆市科技攻关计划项目(cstc2012gg-yyjs10020)

摘　　要：目的了解一种以空气作为工作气体、大气压冷等离子体消毒器的水消毒性能及其影响因素。方法分别采用悬液定量杀菌试验和微孔滤膜过滤法,对该等离子体消毒器产生的以臭氧为主要杀菌因子的水消毒效果及影响因素进行观察。结果该消毒器之水消毒组件运行30 min能将80 L污染水体中的大肠杆菌完全杀灭;对2 L染菌水消毒处理作用30 min,水温5℃、有机物浓度为15度时对其消毒效果有影响,水中pH值对其杀菌效果影响不明显。结论该等离子体消毒器具有良好的水消毒效果,可在20~30℃、色度低于10度、pH值6.5~8.5条件下用于水的消毒处理。Objective To know the disinfection efficacy of water and influence factors of a disinfector based on atmospheric pressure cold plasma.Methods Suspension quantitative germicidal test and nuclepore membrane filter method were used to observe the efficacy of disinfection to water and the influence factors of ozone produced by the disinfector.Results When the water disinfection part of the disinfector was running for 30 mins,Escherichia coli could be killed completely in 80 L pollution water sample.The efficacy of the disinfector could be reduced when the water temperature was 5 ℃ and the water color was above 15 degrees in 2 L pollution water with 30 min contact time.pH value of the water had little influence to the germicidal efficacy.Conclusion The disinfector has good germicidal effect.It may be used to disinfect water at the condition of 20-30 ℃,the water color less than 10,pH 6.5-8.5.

关 键 词：消毒器 冷等离子体 大气压 水消毒效果 影响因素 

分 类 号：R187[医药卫生—流行病学]