The control of viruses in water is critical to preventing the spread of infectious viral diseases. Many oxidants can inactivate viruses, and this study aims to systematically compare the disinfection effects of ozone (O₃), peroxymonosulfate (PMS), and hydrogen peroxide (H₂O₂) on MS2 coliphage. The effects of oxidant dose and contact time on disinfection were explored, as were the disinfection effects of three oxidizing agents in secondary effluent. The 4-log inactivation of MS2 coliphage required 0.05 mM O₃, 0.5 mM PMS, or 25 mM H₂O₂ with a contact time of 30 min. All three oxidants achieved at least 4-log disinfection within 30 min, and O₃ required only 0.5 min. In secondary effluent, all three oxidants also achieved 4-log inactivation of MS2 coliphage. Excitation–emission matrix (EEM) results indicate that all three oxidants removed dissolved organic matter synchronously and O₃ oxidized dissolved organic matter more thoroughly while maintaining disinfection efficacy. Considering the criteria of oxidant dose, contact time, and disinfection efficacy in secondary effluent, O₃ is the best choice for MS2 coliphage disinfection among the three oxidants.

中文翻译：

---

臭氧、过氧化氢和过一硫酸盐对水中 MS2 大肠杆菌噬菌体的消毒

控制水中病毒对于防止传染性病毒性疾病的传播至关重要。许多氧化剂可以灭活病毒，本研究旨在系统比较臭氧（O ₃）、过一硫酸盐（PMS）和过氧化氢（H ₂ O ₂）对MS2大肠杆菌噬菌体的消毒效果。探讨了氧化剂剂量和接触时间对消毒的影响，以及二级出水中三种氧化剂的消毒效果。MS2 大肠杆菌噬菌体的 4 个对数级灭活需要 0.05 mM O ₃、0.5 mM PMS 或 25 mM H ₂ O _{2 ，}​​接触时间为 30 分钟。所有三种氧化剂在30分钟内均达到至少4-log消毒效果，而O ₃仅需要0.5分钟。在二级流出物中，所有三种氧化剂也实现了 MS2 大肠杆菌噬菌体 4-log 灭活。激发-发射矩阵（EEM）结果表明，三种氧化剂均同步去除溶解有机物，并且O ₃更彻底地氧化溶解有机物，同时保持消毒效果。综合考虑氧化剂剂量、接触时间和二级出水消毒效果等标准，三种氧化剂中O _{3是MS2大肠杆菌噬菌体消毒的最佳选择。}