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Author:

Fu, Xiaoyu (Fu, Xiaoyu.) | Gao, Jingfeng (Gao, Jingfeng.) (Scholars:高景峰) | Wang, Qian (Wang, Qian.) | Chen, Hao (Chen, Hao.) | Liu, Ying (Liu, Ying.) | Zeng, Liqin (Zeng, Liqin.) | Yuan, Yukun (Yuan, Yukun.) | Xu, Hongxin (Xu, Hongxin.)

Indexed by:

EI Scopus SCIE

Abstract:

The existence of antibiotic resistant bacteria (ARB) and antibiotic resistance genes (ARGs) has been a global public environment and health issue. Due to the different cell structures, gram-positive/negative ARB exhibit various inactivation mechanisms in water disinfection. In this study, a gram-negative ARB Escherichia coli DH5 alpha (E. coli DH5 alpha) was used as a horizontal gene transfer (HGT) donor, while a gram-positive ARB Bacillus as a recipient. To develop an efficient and engineering applicable method in water disinfection, ARB and ARGs removal efficiency of Fe(VI) coupled peroxydisulfate (PDS) or peroxymonosulfate (PMS) was compared, wherein hydroxylamine (HA) was added as a reducing agent. The results indicated that Fe(VI)/PMS/HA showed higher disinfection efficiency than Fe(VI)/PDS/HA. When the concentration of each Fe(VI), PMS, HA was 0.48 mM, 5.15 log E. coli DH5 alpha and 3.57 log Bacillus lost cultivability, while the proportion of recovered cells was 0.0017 % and 0.0566 %, respectively, and HGT was blocked. Intracellular tetA was reduced by 2.49 log. Fe(IV) and/or Fe (V) were proved to be the decisive reactive species. Due to the superiority of low cost as well as high efficiency and practicality, Fe(VI)/PMS/HA has significant application potential in ARB, ARGs removal and HGT inhibition, offering a new insight for wastewater treatment.

Keyword:

Peroxydisulfate Ferrate Antibiotic resistance bacteria and genes Plasmid-mediated horizontal gene transfer Peroxymonosulfate

Author Community:

  • [ 1 ] [Fu, Xiaoyu]Beijing Univ Technol, Dept Environm Engn, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China
  • [ 2 ] [Gao, Jingfeng]Beijing Univ Technol, Dept Environm Engn, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China
  • [ 3 ] [Wang, Qian]Beijing Univ Technol, Dept Environm Engn, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China
  • [ 4 ] [Chen, Hao]Beijing Univ Technol, Dept Environm Engn, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China
  • [ 5 ] [Liu, Ying]Beijing Univ Technol, Dept Environm Engn, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China
  • [ 6 ] [Zeng, Liqin]Beijing Univ Technol, Dept Environm Engn, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China
  • [ 7 ] [Yuan, Yukun]Beijing Univ Technol, Dept Environm Engn, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China
  • [ 8 ] [Xu, Hongxin]Beijing Univ Technol, Dept Environm Engn, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China

Reprint Author's Address:

  • [Gao, Jingfeng]Beijing Univ Technol, Dept Environm Engn, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China;;

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Source :

JOURNAL OF HAZARDOUS MATERIALS

ISSN: 0304-3894

Year: 2024

Volume: 470

1 3 . 6 0 0

JCR@2022

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 10

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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