摘要
耐红霉素(药物)细菌和基因在污水处理厂污水中普遍被检出。研究了耐红霉素细菌在不同消毒剂量、复活条件、复活强度条件下的复活程度,并对紫外线消毒处理后红霉素耐药性的后续生态风险进行了评价。结果表明:在紫外线消毒剂量为1mJ/cm^2时,耐红霉素细菌的复活程度比10mJ/cm^2时更为显著;对于耐红霉素细菌的复活,光复活处理比暗复活处理更为显著;对于耐红霉素细菌的暗复活,长时间的暗复活处理会增加耐红霉素细菌的复活程度,提升其生态风险。因此须重视耐药细菌复活在污水中的生态风险。
Erythromycin resistance bacteria and genes are generally detected in wastewater treatment plants.This paper investigates the reactivation characteristic of erythromycin resistance bacteria under a variety of disinfection dosage,resuscitative mode and reactivation intensity,and evaluates the subsequent ecological risk of erythromycin resistance after UV disinfection.The results show that the reactivation of erythromycin resistant bacteria is significantly higher at disinfection dosage of 10 mJ/cm^2 than that of 1 mJ/cm^2.The light reactivation is more remarkable than the dark reactivation;and for erythromycin resistance bacteria,long time dark reactivation treatment will increase the reactivation degree and raise the ecological risk.Thus,the paper indicates that there is an urgent need to focus on the ecological risk of the reactivation of drug-resistant bacteria in municipal wastewater treatment plants.
作者
汪喜生
吕瑞滨
沈怡雯
郭美婷
WANG Xisheng;LYU Ruibin;SHEN Yiwen;GUO Meiting(Shidongkou Wastewater Treatment Plant,Shanghai Chengtou WastewaterTreatment Co.,Ltd.,Shanghai 200942,China;College of Environmental Scienceand Engineering,Tongji University,Shanghai 200092,China)
出处
《安全与环境工程》
CAS
北大核心
2018年第4期70-75,共6页
Safety and Environmental Engineering
关键词
耐红霉素细菌
紫外线消毒
复活特性
生态风险
光复活
暗复活
erythromycin resistant bacteria
UV disinfection
reactivation characteristic
ecological risk
light reactivation
dark reactivation
