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Inactivation efficiency of Bacillus endospores via modified flow-through PUV treatment with comparison to conventional LPUV treatment

dc.contributor.authorFitzhenry, Kelly
dc.contributor.authorRowan, Neil
dc.contributor.authorVal del Río, Ángeles
dc.contributor.authorCremillieux, A.
dc.contributor.authorClifford, Eoghan
dc.date.accessioned2019-09-03T08:06:02Z
dc.date.issued2018-11-28
dc.identifier.citationFitzhenry, K., Rowan, N., Val del Rio, A., Cremillieux, A., & Clifford, E. (2019). Inactivation efficiency of Bacillus endospores via modified flow-through PUV treatment with comparison to conventional LPUV treatment. Journal of Water Process Engineering, 27, 67-76. doi: https://doi.org/10.1016/j.jwpe.2018.11.009en_IE
dc.identifier.issn2214-7144
dc.identifier.urihttp://hdl.handle.net/10379/15368
dc.description.abstractWater is a fragile resource, consequently there is a pressing need to develop sustainable environmental-friendly disinfection technologies. This constitutes the first study to compare efficacy of continuous low-pressure UV (LPUV) to that of pulsed UV light (PUV) for UV disinfection performance in flow-through water systems. Bacillus endospores were used as these are frequently deployed as biodosimeters for drinking water UV reactor validation protocols. Results showed a PUV system output of 2,052 mJ/cm(2) (energy below 300 nm) was required for a 2 log inactivation of B.pumilus endospores, whereas a lower LPUV system output of 12 mJ/cm(2) produced a similar level of disinfection. Measurements of dose incident to the samples (which were 10.75 cm from the PUV light source) showed supplementation of cultivation media with manganese sulphate monohydrate (MnSO4 center dot H2O) employed to enhance the rate of endospore formation for propagation was shown to increase the UV resistance of different Bacillus spp. to both irradiation approaches (Pen_IE
dc.description.sponsorshipThe authors would like to acknowledge the Department of Agriculture, Food and the Marine (Ref: 13-F-507) for funding this research. Dr. Val del Rio was supported by the Xunta de Galicia postdoctoral fellowship, grant no. ED418B 2017/075.en_IE
dc.formatapplication/pdfen_IE
dc.language.isoenen_IE
dc.publisherElsevieren_IE
dc.relation.ispartofJournal Of Water Process Engineeringen
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Ireland
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/3.0/ie/
dc.subjectLow-pressure UVen_IE
dc.subjectPulsed UVen_IE
dc.subjectBacillus endosporesen_IE
dc.subjectDisinfectionen_IE
dc.subjectMedia formulationen_IE
dc.subjectBACILLUS-SUBTILIS SPORESen_IE
dc.subjectLOW-PRESSURE UVen_IE
dc.subjectCRYPTOSPORIDIUM-PARVUM OOCYSTSen_IE
dc.subjectPULSED-LIGHTen_IE
dc.subjectMURINE NOROVIRUSen_IE
dc.subjectLISTERIA-MONOCYTOGENESen_IE
dc.subjectADVANCED OXIDATIONen_IE
dc.subjectESCHERICHIA-COLIen_IE
dc.subjectDIPICOLINIC ACIDen_IE
dc.subjectDRINKING-WATERen_IE
dc.titleInactivation efficiency of Bacillus endospores via modified flow-through PUV treatment with comparison to conventional LPUV treatmenten_IE
dc.typeArticleen_IE
dc.date.updated2019-08-13T09:24:33Z
dc.identifier.doi10.1016/j.jwpe.2018.11.009
dc.local.publishedsourcehttps://doi.org/10.1016/j.jwpe.2018.11.009en_IE
dc.description.peer-reviewedpeer-reviewed
dc.contributor.funderDepartment of Agriculture, Food and the Marineen_IE
dc.contributor.funderXunta de Galiciaen_IE
dc.description.embargo2020-11-28
dc.internal.rssid15715818
dc.local.contactEoghan Clifford, Room 1035, Alice Perry Engineering Building, Nui Galway, Galway. 2219 Email: eoghan.clifford@nuigalway.ie
dc.local.copyrightcheckedYes
dc.local.versionACCEPTED
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Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Ireland