Cargando…

A Low Cost and Eco-Sustainable Device to Determine the End of the Disinfection Process in SODIS

The lack of safe drinking water is one of the main health problems in many regions of the world. In order to face it, Solar water disinfection (SODIS) proposes the use of transparent plastic containers, which are filled with contaminated water, and exposed to direct sunlight until enough UV radiatio...

Descripción completa

Detalles Bibliográficos
Autores principales: Sales-Lérida, Diego, Grosso, Juan, Martínez-Jiménez, Pedro Manuel, Manzano, Manuel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9865546/
https://www.ncbi.nlm.nih.gov/pubmed/36679380
http://dx.doi.org/10.3390/s23020575
_version_ 1784875865100779520
author Sales-Lérida, Diego
Grosso, Juan
Martínez-Jiménez, Pedro Manuel
Manzano, Manuel
author_facet Sales-Lérida, Diego
Grosso, Juan
Martínez-Jiménez, Pedro Manuel
Manzano, Manuel
author_sort Sales-Lérida, Diego
collection PubMed
description The lack of safe drinking water is one of the main health problems in many regions of the world. In order to face it, Solar water disinfection (SODIS) proposes the use of transparent plastic containers, which are filled with contaminated water, and exposed to direct sunlight until enough UV radiation is received to inactivate the pathogens. However, a reliable method for determining the end of the disinfection process is needed. Although several approaches have been proposed in the literature for this purpose, they do not strictly accomplish two critical constraints that are essential in this type of project, namely, low cost and sustainability. In this paper, we propose an electronic device to determine when the lethal UV dose has been reached in SODIS containers, which accomplishes both constraints mentioned above: on the one hand, its manufacturing cost is around EUR 12, which is much lower than the price of other electronic solutions; on the other hand, the device is sufficiently autonomous to work for months with small low-cost disposable batteries, thereby avoiding the use of rechargeable batteries, which are considered hazardous waste at the end of their useful life. In our approach, we first analyze different low cost UV sensors in order to select the most accurate one by comparing their response with a reference pattern provided by a radiometer. Then, an electronic device is designed using this sensor, which measures the accumulated UV radiation and compares this value with the lethal UV dose to determine the end of the disinfection process. Finally, the device has been manufactured and tested in real conditions to analyze its accuracy, obtaining satisfactory results.
format Online
Article
Text
id pubmed-9865546
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-98655462023-01-22 A Low Cost and Eco-Sustainable Device to Determine the End of the Disinfection Process in SODIS Sales-Lérida, Diego Grosso, Juan Martínez-Jiménez, Pedro Manuel Manzano, Manuel Sensors (Basel) Article The lack of safe drinking water is one of the main health problems in many regions of the world. In order to face it, Solar water disinfection (SODIS) proposes the use of transparent plastic containers, which are filled with contaminated water, and exposed to direct sunlight until enough UV radiation is received to inactivate the pathogens. However, a reliable method for determining the end of the disinfection process is needed. Although several approaches have been proposed in the literature for this purpose, they do not strictly accomplish two critical constraints that are essential in this type of project, namely, low cost and sustainability. In this paper, we propose an electronic device to determine when the lethal UV dose has been reached in SODIS containers, which accomplishes both constraints mentioned above: on the one hand, its manufacturing cost is around EUR 12, which is much lower than the price of other electronic solutions; on the other hand, the device is sufficiently autonomous to work for months with small low-cost disposable batteries, thereby avoiding the use of rechargeable batteries, which are considered hazardous waste at the end of their useful life. In our approach, we first analyze different low cost UV sensors in order to select the most accurate one by comparing their response with a reference pattern provided by a radiometer. Then, an electronic device is designed using this sensor, which measures the accumulated UV radiation and compares this value with the lethal UV dose to determine the end of the disinfection process. Finally, the device has been manufactured and tested in real conditions to analyze its accuracy, obtaining satisfactory results. MDPI 2023-01-04 /pmc/articles/PMC9865546/ /pubmed/36679380 http://dx.doi.org/10.3390/s23020575 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Sales-Lérida, Diego
Grosso, Juan
Martínez-Jiménez, Pedro Manuel
Manzano, Manuel
A Low Cost and Eco-Sustainable Device to Determine the End of the Disinfection Process in SODIS
title A Low Cost and Eco-Sustainable Device to Determine the End of the Disinfection Process in SODIS
title_full A Low Cost and Eco-Sustainable Device to Determine the End of the Disinfection Process in SODIS
title_fullStr A Low Cost and Eco-Sustainable Device to Determine the End of the Disinfection Process in SODIS
title_full_unstemmed A Low Cost and Eco-Sustainable Device to Determine the End of the Disinfection Process in SODIS
title_short A Low Cost and Eco-Sustainable Device to Determine the End of the Disinfection Process in SODIS
title_sort low cost and eco-sustainable device to determine the end of the disinfection process in sodis
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9865546/
https://www.ncbi.nlm.nih.gov/pubmed/36679380
http://dx.doi.org/10.3390/s23020575
work_keys_str_mv AT salesleridadiego alowcostandecosustainabledevicetodeterminetheendofthedisinfectionprocessinsodis
AT grossojuan alowcostandecosustainabledevicetodeterminetheendofthedisinfectionprocessinsodis
AT martinezjimenezpedromanuel alowcostandecosustainabledevicetodeterminetheendofthedisinfectionprocessinsodis
AT manzanomanuel alowcostandecosustainabledevicetodeterminetheendofthedisinfectionprocessinsodis
AT salesleridadiego lowcostandecosustainabledevicetodeterminetheendofthedisinfectionprocessinsodis
AT grossojuan lowcostandecosustainabledevicetodeterminetheendofthedisinfectionprocessinsodis
AT martinezjimenezpedromanuel lowcostandecosustainabledevicetodeterminetheendofthedisinfectionprocessinsodis
AT manzanomanuel lowcostandecosustainabledevicetodeterminetheendofthedisinfectionprocessinsodis