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Electrophotocatalytic wather disinfection
Štefancová, Eva ; Drbohlavová, Jana (referee) ; Veselá, Mária (advisor)
This work focuses on the photoelectrocatalytic water disinfection by applying electrical voltage onto an electrode system. Working electrode consist of electrical conductor covered by thin film TiO2, because of its very important photoactivity. Disinfection effect was monitored on Gram-negative bacteria E. coli under different conditions. Inactivation of bacterial cells in contamined aqueous solution, first experiment was observed only with presence of oxygen, later reactor was irradiated with UV-A compact blacklight with intensity of 4 mW• m-2 or electrical voltage of 1V was applied to electrode. By adding both effects at the same time I was verifying photoelectrocatalysic water disinfection on chosen microorganism.
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Kinetics of electrophotocatalytic water disinfection
Štefancová, Eva ; Zita, Jiří (referee) ; Veselá, Mária (advisor)
In this work, electrophotocatalytic disinfection on selected microorganisms was verified. The electrophotocatalytic system allows the application of electrical bias to the photoanode coated with a titanium dioxide layer. The disinfecting effect was observed on E.coli and C.glabrata in aqueous solution. The effect of radiation intensity on electrophotocatalysis and selected optimal conditions for further experiments was observed in the E. coli organism. Photocatalytic disinfection was carried out under suitable conditions on C.glabrata yeast and the effect of sodium sulfate electrolyte on electrophotocatalytic disinfection was observed in this case.
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Kinetics of electrophotocatalytic water disinfection
Štefancová, Eva ; Zita, Jiří (referee) ; Veselá, Mária (advisor)
In this work, electrophotocatalytic disinfection on selected microorganisms was verified. The electrophotocatalytic system allows the application of electrical bias to the photoanode coated with a titanium dioxide layer. The disinfecting effect was observed on E.coli and C.glabrata in aqueous solution. The effect of radiation intensity on electrophotocatalysis and selected optimal conditions for further experiments was observed in the E. coli organism. Photocatalytic disinfection was carried out under suitable conditions on C.glabrata yeast and the effect of sodium sulfate electrolyte on electrophotocatalytic disinfection was observed in this case.
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Electrophotocatalytic wather disinfection
Štefancová, Eva ; Drbohlavová, Jana (referee) ; Veselá, Mária (advisor)
This work focuses on the photoelectrocatalytic water disinfection by applying electrical voltage onto an electrode system. Working electrode consist of electrical conductor covered by thin film TiO2, because of its very important photoactivity. Disinfection effect was monitored on Gram-negative bacteria E. coli under different conditions. Inactivation of bacterial cells in contamined aqueous solution, first experiment was observed only with presence of oxygen, later reactor was irradiated with UV-A compact blacklight with intensity of 4 mW• m-2 or electrical voltage of 1V was applied to electrode. By adding both effects at the same time I was verifying photoelectrocatalysic water disinfection on chosen microorganism.
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