The use of UV-C light as a self-cleaning device in the eSOS showed some potential in this field research as it has already demonstrated some effectiveness set at a minimum exposure time (i.e. 3-min instead of the ideal 10-min found on the preliminary phase experiments) corresponding to minimum power consumption. The current capacity of the system can still be expanded considering that there was abundant power supply as the field research location is situated by the equatorial line receiving strong and consistent solar irradiation to power the toilet. However, reiterating the above-mentioned discussions, increasing UV dosage by adding UV lamps, choosing a stronger UV lamp, or positioning the lamp closer to the targeted surfaces – is not the only recommendation to enhance the UV disinfection capacity.
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10. Fiona Zakaria, Bertin Harelimana, Josip Ćurko, Jack van de Vossenberg, Hector A. Garcia, Christine Maria Hooijmans & Damir Brdjanovic (2016) Effectiveness of UV-C light irradiation on disinfection of an eSOS® smart toilet evaluated in a temporary settlement in the Philippines, International Journal of Environmental Health Research, 26:5-6, 536-55
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