摘要
在氯消毒的基础上逐步添加化学药剂,最终形成一种由过氧化氢、次氯酸钠、臭氧组成的混合消毒剂。通过试验研究了该混合消毒剂对枯草芽孢杆菌芽孢的杀灭效果,试验结果表明,在次氯酸钠基础上添加臭氧,使整体杀灭效果提升了0.524 log,而在2组分混合消毒剂基础上加入过氧化氢,使整体杀灭效果提升了0.337 log。3组分混合消毒剂中过氧化氢添加量为0.25 mg/L时,整体的杀灭效果最好,可以达到1.959 log,即对于“两虫”(贾第鞭毛虫和隐孢子虫)替代微生物枯草芽孢杆菌的杀灭效果接近99%。
On the basis of chlorine disinfection,chemical agents are gradually added to form a mixed disinfectant composed of hydrogen peroxide,sodium hypochlorite and ozone.The killing effect of the mixed disinfectant on Bacillus subtilis spores was studied through experiments.The results showed that adding ozone on the basis of sodium hypochlorite increased the overall killing effect by 0.524 log,while adding hydrogen peroxide on the basis of two-component mixed disinfectant increased the overall killing effect by 0.337 log.When the added amount of hydrogen peroxide in this three-component mixed disinfectant is 0.25 mg/L,the overall killing effect is the best,which can reach 1.959 log,that is,the killing effect for Bacillus subtilis,a substitute microorganism for“two insects”(Cryptosporidium and Giardia),is close to 99%.
出处
《环境保护与循环经济》
2024年第10期19-23,共5页
environmental protection and circular economy
基金
辽宁省应用基础研究计划项目“基于多组分消毒剂原位生成的饮用水电化学消毒应用基础研究”(2022JH2/101300121)。
关键词
再生水
氯
混合消毒剂
枯草芽孢杆菌芽孢
reclaimed water
chlorine
mixed disinfectant
bacillus subtilis spores
