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Photovoltaic concentrator potential and its inactivation rate of indicator microorganism in point of use water treatment system

OBJECTIVE: Unsafe drinking water has a significant health impact all over the world especially, in developing countries. Household water treatments become more affordable than conventional ones for many reasons. Photovoltaic concentrator is environmentally sound and effective inactivation method by...

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Autores principales: Lamore, Yonas, Alemu, Simegn
Formato: Online Artículo Texto
Lenguaje:English
Publicado: SAGE Publications 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9128048/
https://www.ncbi.nlm.nih.gov/pubmed/35620120
http://dx.doi.org/10.1177/20503121221099106
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author Lamore, Yonas
Alemu, Simegn
author_facet Lamore, Yonas
Alemu, Simegn
author_sort Lamore, Yonas
collection PubMed
description OBJECTIVE: Unsafe drinking water has a significant health impact all over the world especially, in developing countries. Household water treatments become more affordable than conventional ones for many reasons. Photovoltaic concentrator is environmentally sound and effective inactivation method by converting light energy to electricity. This study aimed to assess the inactivation potential of photovoltaic concentrator on drinking water quality indicator microorganisms at different solar exposure times. METHODS: A laboratory-based experimental study was conducted at Jimma University’s environmental microbiology laboratory to measure the disinfection potential of the photovoltaic concentrator for months in uneven weather conditions. A membrane filtration, a pour plate count method, and a calibrated clear sky calculator were used. RESULTS: Among indicator microorganisms, Escherichia coli was completely inactivated (standard deviation = 11.3°C, R(2) = 0.80) at 2 h of solar exposure whereas heterotrophic plate count was measured as (SD = 12.2°C, R(2) = 0.82) at 35°C for 48 h in the sample that contains 2.81 NTU. CONCLUSION: Based on the findings, photovoltaic concentrator was one of the most effective inactivation technologies for E. coli and total coliform.
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spelling pubmed-91280482022-05-25 Photovoltaic concentrator potential and its inactivation rate of indicator microorganism in point of use water treatment system Lamore, Yonas Alemu, Simegn SAGE Open Med Original Research Article OBJECTIVE: Unsafe drinking water has a significant health impact all over the world especially, in developing countries. Household water treatments become more affordable than conventional ones for many reasons. Photovoltaic concentrator is environmentally sound and effective inactivation method by converting light energy to electricity. This study aimed to assess the inactivation potential of photovoltaic concentrator on drinking water quality indicator microorganisms at different solar exposure times. METHODS: A laboratory-based experimental study was conducted at Jimma University’s environmental microbiology laboratory to measure the disinfection potential of the photovoltaic concentrator for months in uneven weather conditions. A membrane filtration, a pour plate count method, and a calibrated clear sky calculator were used. RESULTS: Among indicator microorganisms, Escherichia coli was completely inactivated (standard deviation = 11.3°C, R(2) = 0.80) at 2 h of solar exposure whereas heterotrophic plate count was measured as (SD = 12.2°C, R(2) = 0.82) at 35°C for 48 h in the sample that contains 2.81 NTU. CONCLUSION: Based on the findings, photovoltaic concentrator was one of the most effective inactivation technologies for E. coli and total coliform. SAGE Publications 2022-05-20 /pmc/articles/PMC9128048/ /pubmed/35620120 http://dx.doi.org/10.1177/20503121221099106 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by-nc/4.0/This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).
spellingShingle Original Research Article
Lamore, Yonas
Alemu, Simegn
Photovoltaic concentrator potential and its inactivation rate of indicator microorganism in point of use water treatment system
title Photovoltaic concentrator potential and its inactivation rate of indicator microorganism in point of use water treatment system
title_full Photovoltaic concentrator potential and its inactivation rate of indicator microorganism in point of use water treatment system
title_fullStr Photovoltaic concentrator potential and its inactivation rate of indicator microorganism in point of use water treatment system
title_full_unstemmed Photovoltaic concentrator potential and its inactivation rate of indicator microorganism in point of use water treatment system
title_short Photovoltaic concentrator potential and its inactivation rate of indicator microorganism in point of use water treatment system
title_sort photovoltaic concentrator potential and its inactivation rate of indicator microorganism in point of use water treatment system
topic Original Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9128048/
https://www.ncbi.nlm.nih.gov/pubmed/35620120
http://dx.doi.org/10.1177/20503121221099106
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