Evaluation on inactivation effectiveness of different water treatments on enteric viruses in wastewater

  Objective   To evaluate the inactivation effectiveness of different water treatments (sediment filtration, ultrafiltration, ozone disinfection and chlorine disinfection on enteric viruses in wastewater.

  Methods   Cell-cultured coxsackievirus B3(CoxB3)was added to sterilize secondary effluent as virus indicator, then the water sample was treated by different water treatments respectively, TCID₅₀ was used as test index to assess virus elimination of the four water treatment techniques.

  Results   CoxB3 could be effectively controlled by adequate ozone disinfection practice. Sediment filtration and ultrafiltration almoset had the same effectiveness on virus elimination. Chlorine disinfection couldn't achieve remarkable removal efficiency.

  Conclusion   Ozone disinfection was one of the most effective ways to clean up wastewater, but enteric virus in wastewater can not be successfully eliminated by only one treatment, combination of physical treatments and chemical disinfection techniques were recommended.