Dielectric Barrier Discharge based Mercury-free plasma UV-lamp for efficient water disinfection

Abstract A structurally simple dielectric barrier discharge based mercury-free plasma UV-light source has been developed for efficient water disinfection. The source comprises of a dielectric barrier discharge arrangement between two co-axial quartz tubes with an optimized gas gap. The outer electro...

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Autores principales:	Ram Prakash, Afaque M. Hossain, U. N. Pal, N. Kumar, K. Khairnar, M. Krishna Mohan
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/7f0a38c201f842a4b659674257412a8f
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spelling	oai:doaj.org-article:7f0a38c201f842a4b659674257412a8f2021-12-02T15:05:09ZDielectric Barrier Discharge based Mercury-free plasma UV-lamp for efficient water disinfection10.1038/s41598-017-17455-22045-2322https://doaj.org/article/7f0a38c201f842a4b659674257412a8f2017-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-17455-2https://doaj.org/toc/2045-2322Abstract A structurally simple dielectric barrier discharge based mercury-free plasma UV-light source has been developed for efficient water disinfection. The source comprises of a dielectric barrier discharge arrangement between two co-axial quartz tubes with an optimized gas gap. The outer electrode is an aluminium baked foil tape arranged in a helical form with optimized pitch, while the inner electrode is a hollow aluminium metallic rod, hermetically sealed. Strong bands peaking at wavelengths 172 nm and 253 nm, along with a weak band peaking at wavelength 265 nm have been simultaneously observed due to plasma radiation from the admixture of xenon and iodine gases. The developed UV source has been used for bacterial deactivation studies using an experimental setup that is an equivalent of the conventional house-hold water purifier system. Deactivation studies for five types of bacteria, i.e., E. coli, Shigella boydii, Vibrio, Coliforms and Fecal coliform have been demonstrated with 4 log reductions in less than ten seconds.Ram PrakashAfaque M. HossainU. N. PalN. KumarK. KhairnarM. Krishna MohanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ram Prakash Afaque M. Hossain U. N. Pal N. Kumar K. Khairnar M. Krishna Mohan Dielectric Barrier Discharge based Mercury-free plasma UV-lamp for efficient water disinfection
description	Abstract A structurally simple dielectric barrier discharge based mercury-free plasma UV-light source has been developed for efficient water disinfection. The source comprises of a dielectric barrier discharge arrangement between two co-axial quartz tubes with an optimized gas gap. The outer electrode is an aluminium baked foil tape arranged in a helical form with optimized pitch, while the inner electrode is a hollow aluminium metallic rod, hermetically sealed. Strong bands peaking at wavelengths 172 nm and 253 nm, along with a weak band peaking at wavelength 265 nm have been simultaneously observed due to plasma radiation from the admixture of xenon and iodine gases. The developed UV source has been used for bacterial deactivation studies using an experimental setup that is an equivalent of the conventional house-hold water purifier system. Deactivation studies for five types of bacteria, i.e., E. coli, Shigella boydii, Vibrio, Coliforms and Fecal coliform have been demonstrated with 4 log reductions in less than ten seconds.
format	article
author	Ram Prakash Afaque M. Hossain U. N. Pal N. Kumar K. Khairnar M. Krishna Mohan
author_facet	Ram Prakash Afaque M. Hossain U. N. Pal N. Kumar K. Khairnar M. Krishna Mohan
author_sort	Ram Prakash
title	Dielectric Barrier Discharge based Mercury-free plasma UV-lamp for efficient water disinfection
title_short	Dielectric Barrier Discharge based Mercury-free plasma UV-lamp for efficient water disinfection
title_full	Dielectric Barrier Discharge based Mercury-free plasma UV-lamp for efficient water disinfection
title_fullStr	Dielectric Barrier Discharge based Mercury-free plasma UV-lamp for efficient water disinfection
title_full_unstemmed	Dielectric Barrier Discharge based Mercury-free plasma UV-lamp for efficient water disinfection
title_sort	dielectric barrier discharge based mercury-free plasma uv-lamp for efficient water disinfection
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/7f0a38c201f842a4b659674257412a8f
work_keys_str_mv	AT ramprakash dielectricbarrierdischargebasedmercuryfreeplasmauvlampforefficientwaterdisinfection AT afaquemhossain dielectricbarrierdischargebasedmercuryfreeplasmauvlampforefficientwaterdisinfection AT unpal dielectricbarrierdischargebasedmercuryfreeplasmauvlampforefficientwaterdisinfection AT nkumar dielectricbarrierdischargebasedmercuryfreeplasmauvlampforefficientwaterdisinfection AT kkhairnar dielectricbarrierdischargebasedmercuryfreeplasmauvlampforefficientwaterdisinfection AT mkrishnamohan dielectricbarrierdischargebasedmercuryfreeplasmauvlampforefficientwaterdisinfection
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Dielectric Barrier Discharge based Mercury-free plasma UV-lamp for efficient water disinfection

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