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The impact of power supply frequency of a low pressure UV lamp on bacterial viability and activities
Ist Teil von
Desalination and water treatment, 2015-01, Vol.53 (4), p.1075-1081
Ort / Verlag
Abingdon: Taylor & Francis Ltd
Erscheinungsjahr
2015
Link zum Volltext
Beschreibungen/Notizen
We propose in this study to explore the impact of the power supply frequency and the spectral radiant flux emitted by a germicidal UV lamp on the bacterial viability and activities. Two types of power supplies are used, a traditional electromagnetic ballast taken as a reference and electronic ballast allowing modulating frequencies. To evaluate energy emitted in the UV bandwidth, a photometric system composed of an integrating cylinder, a monochromator, and a CCD camera is mounted. The bacterial viability and activities were repressed when we used a high-frequency UV lamp. Accordingly, the regulation of traditional UV lamp at a high frequency supply can provide an enhancement of UV disinfection process and guarantee the safety of treated water, without any environmental and sanitary hazards.