摘要
芽孢杆菌及芽孢为强耐氯菌,会对饮用水安全产生隐患。研究了环境因素对耐氯菌生长的影响,以及芽孢应急控制技术。结果表明:10 mg/L NaClO、5 mg/L臭氧均能使原水中芽孢浓度降为0。不同种类的氧化剂对芽孢的灭活速度不同,其中臭氧的作用速度最快,5 mg/L的臭氧1 min的接触时间即可使芽孢浓度降为0。60μW/cm^(2)紫外与10 mg/L H_(2)O_(2)高级氧化共同作用下,10 min芽孢浓度降为0,能显著提高H_(2)O_(2)对芽孢的灭活效果。
Bacillus bacteria and spores are strong chlorine-resistant bacteria,which will cause hidden dangers to the safety of drinking water.The effect of environmental factors on the growth of chlorine-resistant bacteria and the spore emergency control technique are studied.The results show that:Both 10 mg/L NaClO and 5 mg/L ozone can reduce the spore concentration in raw water to 0.Different kinds of oxidants have different spore inactivation rates,among which ozone acts the fastest,and the contact time of 5 mg/L ozone for 1 min can reduce the spore concentration to 0.Under the combination effect of 60μW/cm^(2)UV and advanced oxidation effect with 10 mg/L H_(2)O_(2),the spore concentration was reduced to 0 in 10 min,which could significantly improve the inactivation effect of H_(2)O_(2)on spores.
作者
王长平
王凤鹭
Wang Changping;Wang Fenglu(Shenzhen Shenshui Longgang Water Group Co.,Ltd.,Shenzhen 518055,China)
出处
《广东化工》
CAS
2023年第2期128-131,共4页
Guangdong Chemical Industry
关键词
自来水
芽孢杆菌
芽孢
灭活
应急控制
tap water
bacillus sp.
bacillus spore
inactivation
emergency control
