期刊论文

Distribution and Removal of Antibiotic-Resistant Bacteria and Antibiotic Resistance Genes in Petrochemical Wastewater Treatment Plants

Zhou, Shuai(zs402606665@126.com)

中文

环境科学

0250-3301

2021

42

7

3375-3384

10.13227/j.hjkx.202012037

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）；

本校为第一机构

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,其绝对浓度为8.45×10~2 ~ 2.38×10~5CFU·mL~(-1).厌氧处理可使这3类ARB绝对浓度下降0.04 lg ~ 0.21 lg;曝气和沉淀处理对ARB的影响因其类型而异;出水ARB绝对浓度高出进水水平0.12 lg ~ 0.63 lg.活性污泥中aeARGs和iARGs绝对丰度分别为1.96×10~7 ~ 3.02×10~(10) copies·g~(-1)和5.22×10~7 ~ 4.15×...

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 8.45×10(2)-2.38×10(5) CFU·mL(-1); the absolute concentrations of three types of ARB decreased by 0.04 lg-0.21 lg through anaerobic ...