脉冲电磁等离子体对微生物的杀灭效果

刘畅; 高楚蒙; 林维石; 柯跃华; 张国云; 王效影; 崔玉华; 帖金凤

doi:10.13421/j.cnki.hjwsxzz.2024.05.013

脉冲电磁等离子体对微生物的杀灭效果

Killing effect of pulsed electromagnetic plasma on microorganisms

摘要

摘要:
目的观察脉冲电磁等离子体对细菌、真菌、芽孢、包膜病毒和无包膜病毒杀灭效果。
方法参照《消毒技术规范》(2002年版), 评价脉冲电磁等离子体对细菌、真菌、芽孢、包膜病毒和无包膜病毒的杀灭效果。
结果脉冲电磁等离子体作用1.5 min, 对金黄色葡萄球菌、大肠杆菌、白色念珠菌、枯草杆菌黑色变种芽孢的染菌载体杀灭对数值均＞3.00, 对脊髓灰质炎病毒Ⅰ型(PV-Ⅰ)和人类冠状病毒HCoV-229E的杀灭对数值均＞4.00;产生的臭氧浓度低于《室内空气质量标准》(GB/T 18883-2022)对臭氧限量要求。
结论脉冲电磁等离子体对细菌、真菌、芽孢、包膜病毒和无包膜病毒的杀灭效果显著, 具有快速、无残留、低成本等特点。

Abstract:
Objective To investigate the killing effect of pulsed electromagnetic plasma on bacteria, fungi, spores, enveloped viruses, and non-enveloped viruses.
Methods The Technical Standard for Disinfection (2002 edition) was used to evaluate the killing effect of pulsed electromagnetic plasma on bacteria, fungi, spores, enveloped viruses, and non-enveloped viruses.
Results After treatment for 1.5 minutes, pulsed electromagnetic plasma showed a log reduction value of >3.00 against Staphylococcus aureus, Escherichia coli, Candida albicans, and Bacillus subtilis var. niger spores and a log reduction value of >4.00 for poliovirus I (PV-Ⅰ) and human coronavirus HCoV-229E. The concentration of ozone generated was below the limits for ozone in the Standards for Indoor Air Quality (GB/T 18883-2022).
Conclusion Pulsed electromagnetic plasma has a marked killing effect on bacteria, fungi, spores, enveloped viruses, and non-enveloped viruses, with the characteristics of rapid action, residue-free outcomes, and low costs.

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