The photo-based treatment technology simultaneously removes resistant bacteria and resistant genes from wastewater.

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  • Additional Information
    • Source:
      Publisher: IOS Press Country of Publication: Netherlands NLM ID: 100967627 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1001-0742 (Print) Linking ISSN: 10010742 NLM ISO Abbreviation: J Environ Sci (China) Subsets: MEDLINE
    • Publication Information:
      Publication: Amsterdam : IOS Press
      Original Publication: Beijing : Editorial Dept. of Journal of Environmental Sciences (China), 1989-
    • Subject Terms:
      Wastewater*/chemistry ; Waste Disposal, Fluid*/methods; Bacteria ; Disinfection/methods ; Drug Resistance, Bacterial/genetics ; Ultraviolet Rays ; Water Purification/methods
    • Abstract:
      Because of the recent widespread usage of antibiotics, the acquisition and dissemination of antibiotic-resistance genes (ARGs) were prevalent in the majority of habitats. Generally, the biological wastewater treatment processes used in wastewater treatment plants have a limited efficiencies of antibiotics resistant bacteria (ARB) disinfection and ARGs degradation and even promote the proliferation of ARGs. Problematically, ARB and ARGs in effluent pose potential risks if they are not further treated. Photocatalytic oxidation is considered a promising disinfection technology, where the photocatalytic process generates many free radicals that enhance the interaction between light and deoxyribonucleic acid (DNA) for ARB elimination and subsequent degradation of ARGs. This review aims to illustrate the progress of photocatalytic oxidation technology for removing antibiotics resistant (AR) from wastewater in recent years. We discuss the sources and transfer of ARGs in wastewater. The overall removal efficiencies of ultraviolet radiation (UV)/chlorination, UV/ozone, UV/H 2 O 2 , and UV/sulfate-radical based system for ARB and ARGs, as well as the experimental parameters and removal mechanisms, are systematically discussed. The contribution of photocatalytic materials based on TiO 2 and g-C 3 N 4 to the inactivation of ARB and degradation of ARGs is highlighted, producing many free radicals to attack ARB and ARGs while effectively limiting the horizontal gene transfer (HGT) in wastewater. Finally, based on the reviewed studies, future research directions are proposed to realize specific photocatalytic oxidation technology applications and overcome current challenges.
      Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
      (Copyright © 2024. Published by Elsevier B.V.)
    • Contributed Indexing:
      Keywords: Antibiotics resistant bacteria; Antibiotics resistant genes; Photocatalytic oxidation
    • Accession Number:
      0 (Wastewater)
    • Publication Date:
      Date Created: 20240802 Date Completed: 20240802 Latest Revision: 20240802
    • Publication Date:
      20240803
    • Accession Number:
      10.1016/j.jes.2024.01.005
    • Accession Number:
      39095161