臭氧灭活水中f_2噬菌体的效果研究

目的 研究臭氧灭活水中f_2噬菌体的效果.方法 分别向不同pH值(6.5～8.5)、不同色度(O-30度)的臭氧水(通气5～30min)中加入f_2噬菌体悬液原液(终浓度为10~4～10~5pfu/ml),作用5、15、30min后进行f_2噬菌体计数,并计算灭活率.结果 在相同的通气条件下,pH值对臭氧灭活f_2噬菌体效果的影响并不明显;随着色度的提高,臭氧对f_2噬菌体的灭活效果有所降低.结论 高色度的水质条件不利于臭氧灭活水中f_2噬菌体.

Abstract：

Objective To observe the efficacy of ozone in the inactivation of f_2 phage in water. Methods The concentration of ozone in water was measured by iodometry. During the experiment, the suspension of f_2 phage was added in the ozonized water, at 5,15,30 min, the f_2 phage inactivation rate was calculated. Results Under the same condition of ventilation,in the range of pH regulated in the drinking water sanitary standard,the effect of pH on the inactivation of f_2 phage was not obvious, while the chromaticity of water could remarkably influence the inactivation of f_2 phage. Conclusion The higher chromaticity of water can interfere the inactivation of f_2 phage in water by ozone.

Efficiency of Ozone in Inactivation of f_2 Phage in Water

Objective To observe the efficacy of ozone in the inactivation of f_2 phage in water. Methods The concentration of ozone in water was measured by iodometry. During the experiment, the suspension of f_2 phage was added in the ozonized water, at 5,15,30 min, the f_2 phage inactivation rate was calculated. Results Under the same condition of ventilation,in the range of pH regulated in the drinking water sanitary standard,the effect of pH on the inactivation of f_2 phage was not obvious, while the chromaticity of water could remarkably influence the inactivation of f_2 phage. Conclusion The higher chromaticity of water can interfere the inactivation of f_2 phage in water by ozone.