过氧乙酸对现场室内空气消毒效果影响因素的研究

目的观察多种因素对过氧乙酸空气现场消毒效果的影响,为开展空气现场消毒提供依据。方法采用现场空气消毒试验方法,以自然菌为观察对象进行了试验研究。结果过氧乙酸空气现场消毒效果随环境材料吸附性增强而降低,受环境温湿度影响不明显,不总是随消毒剂量增加而提高。结论空气现场消毒时,以2000mg/L过氧乙酸,按8ml/m3进行气溶胶喷雾作用30min为宜,当环境吸附增强,应提高消毒剂用量,常规条件下环境温湿度可不予重点考虑。

STUDY ON THE FACTORS INFLUENCING THE EFFICACY OF PERACETIC ACID IN DISINFECTION OF ON- THE -SPOT INDOOR AIR

Objective To observe the influences of a variety of factors on on-the-spot air disinfection efficacy of peracetic acid in order to provide the basis for on-the-spot air disinfection.Methods On-the-spot air disinfection trial method with natural bacteria as the observation object was used to carry out experimental study.Results The on-the-spot air disinfection efficacy of peracetic acid decreased with increasing adsorbability of the environmental material,the influence of environmental temperature and humidity was not obvious and the disinfection efficacy did not always increase with increasing disinfectant dosage.Conclusions In on-the-spot air disinfection,it is suitable to use 2000 mg/L peracetic acid at a dosage of 8 ml/m3 for aerosol spray with a contact time of 30 min.When the environmental adsorbability increases,the disinfectant dosage should also be increased.Under conventional conditions,the environmental temperature aod humidity may not be considered.