摘要
经试验比较，同以０．０２０％浓度（漂白粉按有效氯含量计，下同）作用１小时，过氧乙酸可使医院污水中细菌总数减少９９．９９％，而漂白粉仅为９８．６２％。浓度同为０．００５％时，过氧乙酸作用１５分钟即可将污水中大肠菌群数减至＜５００ｃｆｕ／Ｌ，漂白粉则需作用１小时。
The disinfection efficacy of peracetic acid and bleaching powder was compared. When 0. 020% solutions (available chlorine content was used as the concentration of bleaching powder)with an 1-hr contact time were used, peracetic acid could reduce 99.99% of total bacterial count in the hospital sewage, while bleaching powder could only reduce 98.62%. When 0.005% solutions were used.peracetic acid could reduce the coli-group count to <500 cfu/L within 15 min of contact.while 1 hr was required with bleaching powder.
出处
《中国消毒学杂志》
CAS
北大核心
1996年第2期103-104,共2页
Chinese Journal of Disinfection
关键词
污水
消毒
医院污水
过氧乙酸
漂白粉
sewage disinfection hospital sewage peracetic acid bleaching powder
