CONCLUSION Two methods of air disinfection are effective for operating room, but the effect of air disinfection by ozone is better than ultraviolet ray, which is more convenient, quicker, safer.

结论两种消毒方法对手术室空气消毒均有效，但臭氧消毒效果优于紫外线，同时使用简便、快速、安全。

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Objective To study the treatment effect on microorganism in domestic sewage by activated bio-filter and ozone disinfection.

目的了解活性生物滤池及臭氧消毒对污水微生物的影响。

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Objective To learn effect of purification of wastewater by biological filtration and ozone disinfection.

目的了解生物滤池结合臭氧消毒技术对生活污水的净化效果。

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