摘要
在实验室条件下研究了不同余氯量及不同接触时间对医院污水中病毒、致病菌和指示菌的灭活情况,重点在于比较不同余氟量对肠道病毒灭活的影响,实验结果表明:消毒接触时间为90分钟,余氯量为6.20mg/L,肠道病毒灭活率可达到100％;接触时间为60分钟,余氯为4.80mg/L,每升污水中总大肠菌群数已少于500个,其灭活率达到99.99％;接触时间90分钟,余氯为4.10mg/L,未检出沙门氏菌。
The amount of residual chlorine and the contacting time to the inactivation of entero-virus, pathogenic bacteria and indicator bacteria in hospital sewage was studied under laboratory conditions. The influence of different amount of chlorine on viruses inactivation was compared. The results showed,that when the samples contained residual chlorine 6.20 mg/L after 90 minutes chlorination, the rate of inactivation on enterovirus Was 100%. The number of total Coliform was less than 500 in 1 L sewage when the residual chlorine was 4.80 mg/L after contacting 60 minutes, its inactive rate reached 99.99%. No Salmonella could be detected in water samples by treating with 4.10 mg/L residual chlorine for 90 minutes.
出处
《环境与健康杂志》
CAS
CSSCI
CSCD
北大核心
1991年第4期149-151,共3页
Journal of Environment and Health
关键词
医院污水
氯
消毒
肠道病毒
病菌
Chlorination of hospital sewage Enterovirus Salmonella Coliform
