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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。
In laboratory conditions under different levels of residual chlorine and contact time on the hospital sewage in the virus, pathogens and indicators of inactivation, the focus is on the different amount of fluoride on the inactivation of enterovirus, the experimental results The results showed that the disinfection contact time was 90 minutes, the residual chlorine content was 6.20mg / L, the intestinal virus inactivation rate could reach 100%; the contact time was 60 minutes and the residual chlorine was 4.80mg / L, The number of population has less than 500, its inactivation rate reached 99.99%; contact time 90 minutes, residual chlorine 4.10mg / L, did not detect Salmonella.