Comparación de la Resistencia al Tratamiento Ultravioleta y Reactivación en Cuatro Cepas de E. Coli

Translated title of the contribution: Comparison of Resistance to Ultraviolet Treatment and Reactivation in Four E. Coli Strains

Leonardo Romero Martínez, Paola Jackeline Duque Sarango, Claudia González-Martín, Javier Moreno-Andrés, Asunción Acevedo Merino, Enrique Nebot

Research output: Contribution to conferencePaper

Abstract

The UV treatment is commonly used for water disinfection, although it is known that one of the major drawbacks of this technology the ability by the organisms to repair the damage caused by the irradiation. In the recent years, the technology UV-LED has been improved and it is expected that it replaces the traditional sources of UV light, based on mercury vapor, in the medium and long term. There is great heterogeneity among the differentmstudies about UV-LED disinfection, since the different authors use different indicator organisms and procedures. For this reason, the objective in this study is determining a strain of E. coli highly suitable to be used as bacterial indicator for the evaluation of the UV-LED treatment efficacy. Amongjthe four strains tested, E. coli ATCC 23716 presented the high UV resistance and it was affected by reactivation in lesser extent, with respect to the other strains. In this sense, it was considered as the most suitable E. coli strain to be used as indicator in UV-LED inactivation research.
Translated title of the contributionComparison of Resistance to Ultraviolet Treatment and Reactivation in Four E. Coli Strains
Original languageSpanish (Ecuador)
StatePublished - 17 Nov 2022
EventXXXVIII CONGRESO INTERAMERICANO DE INGENIERIA SANITARIA Y AMBIENTAL DE AIDIS (AIDIS 2023) - DO
Duration: 13 Nov 202217 Nov 2022
https://aidisnet.org/event/xxxviii-int/

Conference

ConferenceXXXVIII CONGRESO INTERAMERICANO DE INGENIERIA SANITARIA Y AMBIENTAL DE AIDIS (AIDIS 2023)
Period13/11/2217/11/22
Internet address

Keywords

  • Ultraviolet disinfection
  • Photoreactivation
  • Light-emitting diodes
  • Escherichia coli.

CACES Knowledge Areas

  • 217A Environmental Protection Technology

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