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Effects of freezing on UV inactivation of waterbourne microorganisms

dc.contributor.advisorGao, Wa
dc.contributor.authorWilliams, Andrea Nancy
dc.date.accessioned2012-11-11T03:45:18Z
dc.date.available2012-11-11T03:45:18Z
dc.date.created2009
dc.date.issued2009
dc.identifier.urihttp://knowledgecommons.lakeheadu.ca/handle/2453/336
dc.description.abstractIn northern communities where source water may be frozen for parts of the year or wastewater is treated using freezing technology, the efficiency of UV inactivation may be affected. This research was carried out to investigate the response of Escherichia coli, Enterococcus faecalis and spores of Bacillus subtilis to UV irradiation after freezing and possible photoreactivation after the bacteria were exposed to UV. The inactivation of E. coli (doses 1.5 - 9mJ/cm2), E. faecalis (6 - 25mJ/cm2) and B. subtilis spores (20 - mJ/cm2) by ultraviolet light was investigated using a collimated beam UV apparatus.en_US
dc.language.isoen_USen_US
dc.subjectWateren_US
dc.subjectPurificationen_US
dc.subjectUltraviolet treatmenten_US
dc.subjectFreezing processen_US
dc.subjectBacteriaen_US
dc.subjectEffect of freezes onen_US
dc.subjectEffect of ultraviolet radiation onen_US
dc.titleEffects of freezing on UV inactivation of waterbourne microorganismsen_US
dc.typeThesisen_US
etd.degree.nameMaster of Science
etd.degree.levelMasteren_US
etd.degree.disciplineEngineeringen_US
etd.degree.grantorLakehead Universityen_US


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