等离子体臭氧对水中微生物的杀灭作用

目的　通过沿面放电等离子体臭氧消毒液发生器发生的等离子体臭氧消毒水来研究等离子体臭氧对水中微生物的杀灭效果及影响因素。方法　采用悬液定量消毒试验法来研究等离子体臭氧消毒水对金黄色葡萄球菌和大肠杆菌的杀灭作用，并测试了有机物对其消毒效果的影响。结果　等离子体臭氧对水中的大肠杆菌和金黄色葡萄球菌作用15min，杀灭率达99.9%以上，而臭氧浓度为1.0mg*L-1，其杀菌作用受有机物的影响，有机物浓度越高对消毒效果影响越大。结论　等离子体臭氧可以有效杀灭水中的细菌繁殖体，其杀灭效果受有机物影响。

Study on killing effect on microorganisms in water by plasmas ozone

Objective　To study killing effect of plasmas ozo ne water on microorganisms by plasmas ozone disinfection solution through plasma s ozone resulting from discharge along surface disinfection solution produced by machine and its effect factors. Methods　Quantitative solut ion test was used to study killing action of plasmas ozone disinfection water to E. coli and staphyrococcus aureus, and to study its eff ect factors. Results　Plasmas ozone water could kill 99.9% E. coli and staphyrococcus aureus after 15 min. The kill ing effect was affected by organism. With the increasing of organism concertrat ion, the killing efficacy increased. Conclusions　Plasmas ozone can effectively kill microorgnisms in water and the efficacy was affected by org anism.