Depletion of ARGs in antibiotic-resistance Klebsiella, Pseudomonas and Staphylococcus in hospital urines by electro and photo-electro disinfection

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Herraiz Carboné, Miguel and Cotillas Soriano, Salvador and Lacasa, Engracia and Cañizares, Pablo and Rodrigo, Manuel A. and Sáez, Cristina (2022) Depletion of ARGs in antibiotic-resistance Klebsiella, Pseudomonas and Staphylococcus in hospital urines by electro and photo-electro disinfection. Journal of Water Process Engineering, 49 . p. 103035. ISSN 2214-7144

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Official URL: https://doi.org/10.1016/j.jwpe.2022.103035



Abstract

The depletion of blaKPC (K. pneumoniae), blaOXA-50 (P. aeruginosa) and mecA (S. aureus) genes from hospital urines is evaluated to contribute to solve the silent pandemic of antibiotic-resistance bacteria. A microfluidic flowthrough reactor with MMO anode and CB/PTFE cathode working at 50 A m− 2 is employed during electrodisinfection and photo-electrodisinfection processes. The electrodisinfection process only achieves an almost negligible removal of DNA and slightly log ARG increments of 0.18, 0.19 and 0.71 for blaOXA-50, mecA and blaKPC genes, respectively. Conversely, the photo-electrodisinfection process attains the complete disinfection for all ARB tested and logarithmic removals of 3.70, 2.25 and 0.82 for blaOXA-50, mecA and blaKPC genes, respectively. These outcomes emphasize the potential of the UV light coupled to the electrodisinfection process to promote the formation of not only hypochlorite but also chlorine and even nitrogen radicals, which contribute to enhance the disinfection efficiency of the target ARB and their ARGs.


Item Type:Article
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CRUE-CSIC (Acuerdos Transformativos 2022)

Uncontrolled Keywords:Antibiotic-resistant bacteria, Antibiotic resistance genes, Urine, Electrodisinfection, Photo-electrodisinfection
Subjects:Sciences > Chemistry > Chemical engineering
ID Code:74181
Deposited On:23 Aug 2022 11:17
Last Modified:23 Aug 2022 11:22

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