| 升级A/O工艺污水处理系统中抗生素抗性基因的分布与去除研究 |
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| 引用本文： | 张欢欢,贲伟伟,邵天华,曹汝坤,侯嫔,强志民.升级A/O工艺污水处理系统中抗生素抗性基因的分布与去除研究[J].环境科学学报,2020,40(4):1160-1166. |
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| 作者姓名： | 张欢欢 贲伟伟 邵天华 曹汝坤 侯嫔 强志民 |
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| 作者单位： | 中国矿业大学(北京),化学与环境工程学院,北京100083;中国科学院生态环境研究中心,饮用水科学与技术重点实验室,北京100085,中国科学院生态环境研究中心,饮用水科学与技术重点实验室,北京100085,中国矿业大学(北京),化学与环境工程学院,北京100083;中国科学院生态环境研究中心,饮用水科学与技术重点实验室,北京100085,中国科学院生态环境研究中心,饮用水科学与技术重点实验室,北京100085,中国矿业大学(北京),化学与环境工程学院,北京100083,中国科学院生态环境研究中心,饮用水科学与技术重点实验室,北京100085 |
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| 基金项目： | 国家自然科学基金项目（No.51678559）；国家重大科技专项（No.2017ZX07106005-01） |
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| 摘 要： | 针对北方某采用升级A/O工艺的生活污水处理厂，使用实时荧光定量PCR技术，探究污水厂中ARGs的分布及各处理工艺段对ARGs的去除效果.结果表明：四环素抗性基因（tetA、tetC和tetM）、磺胺抗性基因（sul1和sul2）、大环内酯抗性基因（ermA和ermF）和喹诺酮抗性基因（parC和gyrA）在污水和污泥中均被检出.污水厂进水中ARGs的绝对丰度为2.65×103~1.01×106 copies·mL-1，升级A/O工艺未能有效削减ARGs，出水中ARGs的绝对丰度为9.22×103~1.15×106 copies·mL-1，污泥中ARGs的绝对丰度为8.07×107~2.65×1011 copies·g-1.深度处理工艺对ARGs的去除效率对比结果显示，生物活性炭工艺对ARGs的削减效果优于紫外消毒.
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| 关 键 词： | 污水处理厂 抗生素抗性基因 实时荧光定量PCR技术 A/O工艺 深度处理 |
| 收稿时间： | 2019/9/27 0:00:00 |
| 修稿时间： | 2019/10/29 0:00:00 |
Study on distribution and removal of antibiotic resistance genes in upgraded A/O process wastewater treatment system |
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| ZHANG Huanhuan,BEN Weiwei,SHAO Tianhu,CAO Rukun,HOU Pin and QIANG Zhimin.Study on distribution and removal of antibiotic resistance genes in upgraded A/O process wastewater treatment system[J].Acta Scientiae Circumstantiae,2020,40(4):1160-1166. |
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| Authors: | ZHANG Huanhuan BEN Weiwei SHAO Tianhu CAO Rukun HOU Pin and QIANG Zhimin |
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| Affiliation: | 1. School of Chemical and Environmental Engineering, China University of Mining and Technology(Beijing), Beijing 100083;2. Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085,Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085,1. School of Chemical and Environmental Engineering, China University of Mining and Technology(Beijing), Beijing 100083;2. Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085,Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085,School of Chemical and Environmental Engineering, China University of Mining and Technology(Beijing), Beijing 100083 and Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085 |
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| Abstract: | This paper applied real-time fluorescent quantitative PCR technology to investigate the distribution and removal efficiency of ARGs in each upgraded A/O treatment process of a municipal wastewater treatment plant (WWTP) in North China. The results showed that tetracycline resistance genes (tetA, tetC and tetM), sulfonamide resistance genes (sul1 and sul2), macrolide resistance genes (ermA and ermF) and quinolone resistance genes (parC and gyrA) were all detected in the sewage and sludge samples. The absolute abundance of ARGs in the influent of WWTP were in the range of 2.65×103~1.01×106 copies·mL-1,whereas that in the effluent and sludge were 9.22×103~1.15×106 copies·mL-1 and 8.07×107 ~ 2.65×1011 copies·g-1 respectively. This result indicated that the upgraded A/O treatment process was not effective in removing ARGs. In the advanced treatment process, the biological activated carbon process showed higher removal efficiency of ARGs than UV disinfection. |
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| Keywords: | wastewater treatment plant antibiotic resistance gene real-time fluorescent quantitative PCR A/O process advanced treatment |
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