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美国医院供水系统受嗜肺军团杆菌污染与医院中传播该病存在着流行病学的关系。因此许多医院不得不采取对供水系统的消毒措施。特殊病原体部、退伍军人救济医疗中心和彼兹堡大学,为解决消毒方法问题,1987年用臭氧(1～2mg/L)、紫外线(30,000uw-s/cm~2)、加氯(4～6mg/L)和加热(50～60℃)方法对模拟管道系统进行了消毒效果研究。先将系统中嗜肺军团杆菌增至10~7CFU/ml。每种消毒方法都在3种条件下进行实验:(1)25℃清水,(2)25℃浊水,(3)45℃清水。结果紫外线和加热60℃杀灭速度最快,所需时间最短,都在1h内产生了5个对数值(用N/No的log和时间t表
There is an epidemiological relationship between the contamination of the Legionella pneumophila by the American hospital’s water supply system and the spread of the disease in the hospital. So many hospitals have to take disinfection measures for the water supply system. Special Antibiotics Unit, Veterans Relief Medical Center and University of Pittsburgh, in order to solve the problem of disinfection method, ozone (1 ~ 2mg / L), ultraviolet ray (30,000uw-s / cm ~ 6mg / L) and heating (50 ~ 60 ℃) method to simulate the pipeline system disinfection. Legionella pneumophila bacteria in the system first increased to 10 ~ 7CFU / ml. Each disinfection method was tested under three conditions: (1) 25 ° C clear water, (2) 25 ° C turbid water, and (3) 45 ° C clear water. Results UV and heating at 60 ℃ kill the fastest, the shortest time required, all produced within 1h 5 logarithm (with N / No log and time t table