| 石化废水处理厂中耐药菌和耐药基因的分布特征与去除效能解析 |
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| 引用本文： | 唐振平,肖莎莎,段毅,刘迎九,高媛媛,吴月月,陈怡雯,周帅. 石化废水处理厂中耐药菌和耐药基因的分布特征与去除效能解析[J]. 环境科学, 2021, 42(7): 3375-3384 |
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| 作者姓名： | 唐振平 肖莎莎 段毅 刘迎九 高媛媛 吴月月 陈怡雯 周帅 |
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| 作者单位： | 南华大学污染控制与资源化技术湖南省高校重点实验室,衡阳 421001;南华大学稀有金属矿产开发与废物地质处置技术湖南省重点实验室,衡阳 421001;南华大学土木工程学院,衡阳 421001;南华大学污染控制与资源化技术湖南省高校重点实验室,衡阳 421001;南华大学土木工程学院,衡阳 421001;南华大学衡阳医学院病原生物学研究所,衡阳 421001 |
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| 基金项目： | 湖南省自然科学基金项目（2020JJ5495）;湖南省教育厅项目（18C0433）;湖南省财政厅项目（190SJY001）;衡阳市科技计划项目（2019yj010770） |
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| 摘 要： | 抗生素耐药性污染已成为全球新兴环境问题之一.本研究选取某座石化废水处理厂,对耐药菌(ARB)和3种形态耐药基因(ARGs):细胞内耐药基因(iARGs)、细胞外附着态耐药基因(aeARGs)和游离态耐药基因(feARGs)的分布特征与去除效能开展研究.结果表明,废水处理厂中检出四环素、磺胺和氨苄西林这3类ARB,其绝对...
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| 关 键 词： | 石化废水 耐药菌(ARB) 耐药基因(ARGs) 分布 去除 影响因子 |
| 收稿时间： | 2020-12-04 |
| 修稿时间： | 2020-12-29 |
Distribution and Removal of Antibiotic-Resistant Bacteria and Antibiotic Resistance Genes in Petrochemical Wastewater Treatment Plants |
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| TANG Zhen-ping,XIAO Sha-sh,DUAN Yi,LIU Yin-jiu,GAO Yuan-yuan,WU Yue-yue,CHEN Yi-wen,ZHOU Shuai. Distribution and Removal of Antibiotic-Resistant Bacteria and Antibiotic Resistance Genes in Petrochemical Wastewater Treatment Plants[J]. Chinese Journal of Environmental Science, 2021, 42(7): 3375-3384 |
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| Authors: | TANG Zhen-ping XIAO Sha-sh DUAN Yi LIU Yin-jiu GAO Yuan-yuan WU Yue-yue CHEN Yi-wen ZHOU Shuai |
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| Affiliation: | Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang 421001, China;Hunan Key Laboratory of Rare Metal Minerals Exploitation and Geological Disposal of Wastes, Hengyang 421001, China;School of Civil Engineering, University of South China, Hengyang 421001, China;Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang 421001, China;School of Civil Engineering, University of South China, Hengyang 421001, China;Institute of Pathogenic Biology, Hengyang Medical College, University of South China, Hengyang 421001, China |
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| Abstract: | A petrochemical wastewater treatment plant (PWWTP) was selected to investigate the distribution and removal of antibiotic-resistant bacteria (ARB) and three forms of antibiotic resistance genes (ARGs), namely intracellular ARGs (iARGs), adsorbed-extracellular ARGs (aeARGs), and free extracellular ARGs (feARGs). Tetracycline, sulfanilamide, and ampicillin ARB were detected with the total absolute concentration of 8.45×102-2.38×105 CFU·mL-1; the absolute concentrations of three types of ARB decreased by 0.04 lg-0.21 lg through anaerobic treatment. The effect of aeration and precipitation treatment on ARB varies with its type, and the absolute concentration of ARB in effluent was 0.12 lg-0.63 lg higher than that in influent. The absolute abundance of aeARGs and iARGs in activated sludge was 1.96×107-3.02×1010 copies·g-1 and 5.22×107-4.15×1010 copies·g-1, respectively; the absolute abundance of feARGs in wastewater was 5.90×108-1.01×1012 copies·L-1. Anaerobic treatment can remove 0.13 lg-0.65 lg aeARGs and 0.04 lg-0.28 lg iARGs, while the removal efficiency of aeARGs and iARGs by aeration and precipitation process was affected by ARGs types and forms. The absolute abundance of feARGs in effluent is 0.06 lg-0.81 lg higher than that in influent. Redundancy analysis showed that the concentration of ARB was significantly positively correlated with chemical oxygen demand (COD), Cl-, and total nitrogen concentration (P<0.05). The abundance of aeARGs was positively correlated with COD and total nitrogen concentration (P<0.05), and both the abundance of iARGs and feARGs are positively correlated with heavy metals concentration (P<0.05). This study confirmed the enrichment risk of ARB and different forms of ARGs in PWWTPs, which provided references for the research and prevention of antibiotic resistance pollution in industrial wastewater. |
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| Keywords: | petrochemical wastewater antibiotic-resistant bacteria(ARB) antibiotic resistance genes(ARGs) distribution removal influencing factor |
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