Bactericidal efficiency of a portable UV-vipromine bath system based on leds for non-contaminated water
DOI:
https://doi.org/10.32402/dovkil2026.01.063Keywords:
UV radiation, E. coli, LED lights, portable systemAbstract
The goal of this study was to determine the bactericidal effectiveness of a portable UV-LED water treatment system, developed by the authors, using the sanitary indicator microorganism E. coli. The authors' portable UV water purification system model, which uses UV-LED lights with a wavelength of 279 nm, was used for this study. Microbiological research was conducted on the sanitary indicator microorganism E. coli (strain UKM B-906) from the collection of the D.K. Zabolotny Institute of Microbiology and Virology. The results of the study showed that the developed model meets the necessary criteria: it is portable and energy-efficient (powered by a standard power bank or solar battery). At a 10-minute exposure, it completely inactivates E. coli at the highest concentration. For lower concentrations, even a 5-minute exposure is effective. When testing the absorption of UV radiation in the A, B, and C zones by a quartz tube, which is supposed to allow UV radiation to pass through with minimal energy loss, it was found that the absorption was lowest (less than 5%) at a distance of 20 cm. Therefore, the method of disinfection using UV-LEDs with a wavelength of 279 nm is effective for improving the epidemiological safety of drinking water. Portable systems based on this technology could be a promising solution for obtaining safe drinking water during emergencies.
Downloads
References
1. Hryhorenko LV. Hihiienichne obgruntuvannia dotsilnosti vykorystannia doochyshchenoi pytnoi vody sered silskykh i miskykh respondentiv Dnipropetrovskoi oblasti [Hygienic justification of the feasibility of using purified drinking water among rural and urban respondents of the Dnipropetrovsk region]. Hihiiena naselenykh mists [Hygiene of Population Places]. 2015;66:65-74. In Ukrainian.
2. Romashchenko M, Husyev Y, Shatkovskyi A et al. Impact of climate change on water resources and agricultural production. Melioratsiia i vodne hospodarstvo [Land Reclamation and Water Management]. 2020;(1):5-22. DOI: https://doi.org/10.31073/mivg202001-235
3. Romashchenko M, Shevchenko A, Shevchuk S. et al. Prospects and problems of using local water resousces for irrigation in the basins of small rivers of the forest-steppe of Ukraine. Melioratsiia i vodne hospodarstvo [Land Reclamation and Water Management]. 2023; (1):75-83. DOI: https://doi.org/10.31073/mivg202301-351
4. Zorina OV, Surmasheva OV, Ivanko OM, Polka OO, Mavrykin YeO. Analiz pidkhodiv do otsinky ta zastosuvannia dezinfektsiinykh zasobiv dlia pytnoi vody v Ukraini ta krainakh YeS, u tomu chysli krainakh NATO [Analysis of approaches to the assessment and application of disinfectants for drinking water in Ukraine, EU and NATO countries]. Ukrainskyi zhurnal viiskoi medytsyny [Ukrainian Journal of Military Medicine]. 2025; 6:48-56. In Ukrainian. DOI: https://doi.org/10.46847/ujmm.2025.1(6)-048
5. Ivanko OM., Zorina OV, Deputat YuM. Analiz perspektyv implementatsii v Ukraini AMEDP-4.9 «Vymohy do prydatnosti pytnoi vody pid chas polovykh operatsii i v razi vynyknennia nadzvychainykh sytuatsii» [Analysis of the prospects for the implementation in Ukraine of AMEDP-4.9 «Requirements for the suitability of drinking water during field operations and in the event of emergencies»]. Ukrainskyi zhurnal viiskovoi medytsyny [Ukrainian Journal of Military Medicine]. 2022; 3(3):31-3. In Ukrainian.
6. Polka NS, Fedorenko VI, Plastunov BA. Problemy zberezhennia dovkillia i zdorovia natsii u materialakh XV zizdu hihiienistiv Ukrainy [Problems of envaroment safering and population healht based on reports at the XV congress of hygienists Ukraine Dovkillia ta zdorovia [Environment and Health]. 2013;2(65):68-80. In Ukrainian. Available from: https://dovkil-zdorov.kiev.ua/journal/uk/article/view/770
7. Smith R, Nieuwenhuijsen M, Wright J, Raynor P, Cocker J, Jones K. Validation of trichloroacetic acid exposure via drinking water during pregnancy using a urinary TCAA biomarker. Environ Res. 2013;126:145-51. DOI: https://doi.org/10.1016/j.envres.2013.05.004
Downloads
Published
Issue
Section
License
Copyright (c) 2026 Environment & Health
This work is licensed under a Creative Commons Attribution 4.0 International License.
