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	再生水中5种抗生素抗性菌的紫外线灭活及复活特性研究
	黄晶晶 ; 汤芳 ; 席劲瑛 ; 庞宇辰 ; 胡洪营 ; HUANG Jing-jing ; TANG Fang ; XI Jin-ying ; PANG Yu-chen ; HU Hong-ying
	2016-03-30 ; 2016-03-30
关键词	抗生素抗性菌 紫外线消毒 紫外线灭活 复活特性 再生水处理 antibiotic-resistant bacteria UV disinfection inactivation reactivation reclaimed water treatment X703
其他题名	Inactivation and Reactivation of Antibiotic-Resistant Bacteria During and After UV Disinfection in Reclaimed Water
中文摘要	抗生素抗性菌作为再生水中的新兴污染物而受到广泛关注.为探明紫外线对抗生素抗性菌的灭活和消毒后抗性菌的复活潜能,研究了以城市污水为水源的再生水(简称"再生水")中青霉素抗性菌、氨苄青霉素抗性菌、头孢氨苄抗性菌、氯霉素抗性菌和利福平抗性菌的紫外线灭活特性,并考察了再生水中的抗生素抗性菌在黑暗条件下的复活潜能.结果表明,20mJ·cm-2紫外线消毒剂量下,实际再生水中青霉素抗性菌、氨苄青霉素抗性菌、头孢氨苄抗性菌和氯霉素抗性菌的灭活率均高于4-log,与总异养菌群灭活率相当,而利福平抗性菌的灭活率(3.7-log)略低于总异养菌群.紫外线消毒后,再生水静置22 h后,抗生素抗性菌普遍出现复活现象,当紫外线消毒剂量为常规剂量20 mJ·cm-2时,消毒后再生水中的抗生素抗性菌菌落形成能力高达3-log.因此,常规的紫外线消毒剂量不能有效控制再生水储存或运输过程中抗生素抗性菌的复活.; Prevalence of antibiotic-resistant bacteria in wastewater effluents is concerned as an emerging contaminant. To estimate inactivation and reactivation potentials of antibiotic-resistant bacteria by UV disinfection,inactivation and reactivation of penicillin-, ampicillin-,cephalexin-,chloramphenicol-and rifampicin-resistant bacteria in the secondary effluent were studied under different UV doses. The results showed that the inactivation ratios of penicillin-,ampicillin-,cephalexin-and chloramphenicol-resistant bacteria were higher than 4-log,which was closed to that of total heterotrophic bacteria; however,the inactivation ratio of rifampicin-resistant bacteria was lower( 3. 7-log) under 20 mJ穋m- 2UV exposure. After 22 h standing incubation,antibiotic-resistant bacteria widely reactivated. The colony forming ability of antibiotic-resistant bacteria was as high as 3-log when exposed to 20 mJ穋m- 2UV light. Hence, conventional UV dose can not effectively control reactivation of antibiotic-resistant bacteria in reclaimed water by UV disinfection.
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/144196]
专题	清华大学
推荐引用方式 GB/T 7714	黄晶晶,汤芳,席劲瑛,等. 再生水中5种抗生素抗性菌的紫外线灭活及复活特性研究[J],2016, 2016.
APA	黄晶晶.,汤芳.,席劲瑛.,庞宇辰.,胡洪营.,...&HU Hong-ying.(2016).再生水中5种抗生素抗性菌的紫外线灭活及复活特性研究..
MLA	黄晶晶,et al."再生水中5种抗生素抗性菌的紫外线灭活及复活特性研究".(2016).

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