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Urine disinfection and in situ pathogen killing using a Microbial Fuel Cell cascade system
Microbial Fuel Cells (MFCs) are emerging as an effective means of treating different types of waste including urine and wastewater. However, the fate of pathogens in an MFC-based system remains unknown, and in this study we investigated the effect of introducing the enteric pathogen Salmonella enter...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5413022/ https://www.ncbi.nlm.nih.gov/pubmed/28463976 http://dx.doi.org/10.1371/journal.pone.0176475 |
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author | Ieropoulos, Ioannis Pasternak, Grzegorz Greenman, John |
author_facet | Ieropoulos, Ioannis Pasternak, Grzegorz Greenman, John |
author_sort | Ieropoulos, Ioannis |
collection | PubMed |
description | Microbial Fuel Cells (MFCs) are emerging as an effective means of treating different types of waste including urine and wastewater. However, the fate of pathogens in an MFC-based system remains unknown, and in this study we investigated the effect of introducing the enteric pathogen Salmonella enterica serovar enteritidis in an MFC cascade system. The MFCs continuously fed with urine showed high disinfecting potential. As part of two independent trials, during which the bioluminescent S. enteritidis strain was introduced into the MFC cascade, the number of viable counts and the level of bioluminescence were reduced by up to 4.43±0.04 and 4.21±0.01 log-fold, respectively. The killing efficacy observed for the MFCs operating under closed-circuit conditions, were higher by 1.69 and 1.72 log-fold reduction than for the open circuit MFCs, in both independent trials. The results indicated that the bactericidal properties of a well performing anode were dependent on power performance and the oxidation-reduction potential recorded for the MFCs. This is the first time that the fate of pathogenic bacteria has been investigated in continuously operating MFC systems. |
format | Online Article Text |
id | pubmed-5413022 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-54130222017-05-14 Urine disinfection and in situ pathogen killing using a Microbial Fuel Cell cascade system Ieropoulos, Ioannis Pasternak, Grzegorz Greenman, John PLoS One Research Article Microbial Fuel Cells (MFCs) are emerging as an effective means of treating different types of waste including urine and wastewater. However, the fate of pathogens in an MFC-based system remains unknown, and in this study we investigated the effect of introducing the enteric pathogen Salmonella enterica serovar enteritidis in an MFC cascade system. The MFCs continuously fed with urine showed high disinfecting potential. As part of two independent trials, during which the bioluminescent S. enteritidis strain was introduced into the MFC cascade, the number of viable counts and the level of bioluminescence were reduced by up to 4.43±0.04 and 4.21±0.01 log-fold, respectively. The killing efficacy observed for the MFCs operating under closed-circuit conditions, were higher by 1.69 and 1.72 log-fold reduction than for the open circuit MFCs, in both independent trials. The results indicated that the bactericidal properties of a well performing anode were dependent on power performance and the oxidation-reduction potential recorded for the MFCs. This is the first time that the fate of pathogenic bacteria has been investigated in continuously operating MFC systems. Public Library of Science 2017-05-02 /pmc/articles/PMC5413022/ /pubmed/28463976 http://dx.doi.org/10.1371/journal.pone.0176475 Text en © 2017 Ieropoulos et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Ieropoulos, Ioannis Pasternak, Grzegorz Greenman, John Urine disinfection and in situ pathogen killing using a Microbial Fuel Cell cascade system |
title | Urine disinfection and in situ pathogen killing using a Microbial Fuel Cell cascade system |
title_full | Urine disinfection and in situ pathogen killing using a Microbial Fuel Cell cascade system |
title_fullStr | Urine disinfection and in situ pathogen killing using a Microbial Fuel Cell cascade system |
title_full_unstemmed | Urine disinfection and in situ pathogen killing using a Microbial Fuel Cell cascade system |
title_short | Urine disinfection and in situ pathogen killing using a Microbial Fuel Cell cascade system |
title_sort | urine disinfection and in situ pathogen killing using a microbial fuel cell cascade system |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5413022/ https://www.ncbi.nlm.nih.gov/pubmed/28463976 http://dx.doi.org/10.1371/journal.pone.0176475 |
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