Self-Power UVC-LED Bacteria Reduction Base on Piezoelectric Nano Generator

Tohid Irani

doi:10.47277/JETT/10(4)250

Tohid Irani Department of Environmental Civil Construction Engineering, Payame Noor University, Shiraz, Iran

DOI: https://doi.org/10.47277/JETT/10(4)250

Keywords: Self Power Irradiation, UVC LED, PENG

Abstract

Environmental pollution as an early common reason for natural resources' unsafety, directly menaces human life hygienic indexes. Microbial pollution in water resources, food materials, and common surfaces has produced new problems with infected contacts in daily life activities. Purgation costs and traditional cleaning methods are inadequate and the pollution rate is ascending. Therefore interdisciplinary methods are required to rectify environmental pollution problems smartly while costs and side effects are defined in a sustainability context. The study was conducted to evaluate pulsed mood irradiation operation with UVC LED and a self-power system based on a Piezoelectric Nano Generator (PENG). The study tries to demonstrate the new approach compatibility in an interdisciplinary experiment designed for cleaning environmental pollution. Self-power system in the study is based on produced and tested PENG system that was designed with a proper circuit for a UVC LED power supply. Also, pulsed simulation with a pneumatic cylinder is used to create the required kinetic. Four UVC LEDs were used to make irradiation on diluted samples in the pour plate method. The ritual is an experiment designed in the Design of experiments (DOE) process for an optimized number of tests. The statistical analysis exerted to show impressive elements correlation with disinfection rate. Furthermore, continued irradiation mood was designed for results validation. The exposed samples were analyzed with image processing in python within the OpenCV library to avoid vision errors with edge detection technique. The results showed pulsed base UVC LED with a self-power system reaches high efficiency of disinfection while energy consumption and costs decreased. Most of the experiment cases successfully achieved full disinfection (LOG=6) and in some cases meaningful (LOG<6) disinfection was achieved. The study verified the linear and direct relation of irradiation distance, time, and frequency which cause high-efficiency operation of self-power pulsed irradiation system.

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References

Tabatabaei S-H, Nourmahnad N, Kermani SG, Tabatabaei S-A, Najafi P, Heidarpour M. Urban wastewater reuse in agriculture for irrigation in arid and semi-arid regions-A review. International Journal of Recycling of Organic Waste in Agriculture. 2020;9(2):193-220.

Voulvoulis N. Water reuse from a circular economy perspective and potential risks from an unregulated approach. Current Opinion in Environmental Science & Health. 2018;2:32-45.

Ataei A, Panjeshahi M, GHARAEI M. New method for industrial water reuse and energy minimization. 2009.

Viraraghavan T, Subramanian K, Aruldoss J. Arsenic in drinking waterproblems and solutions. Water Science and Technology. 1999;40(2):69-76.

Rezaie A, Leite GG, Melmed GY, Mathur R, Villanueva-Millan MJ, Parodi G, et al. Ultraviolet A light effectively reduces bacteria and viruses including coronavirus. PloS one. 2020;15(7):e0236199.

Narita K, Asano K, Naito K, Ohashi H, Sasaki M, Morimoto Y, et al. Ultraviolet C light with wavelength of 222 nm inactivates a wide spectrum of microbial pathogens. Journal of Hospital Infection. 2020;105(3):459-67.

Priya S, Song H-C, Zhou Y, Varghese R, Chopra A, Kim S-G, et al. A review on piezoelectric energy harvesting: materials, methods, and circuits. Energy Harvesting and Systems. 2017;4(1):3-39.

Kim D-k, Kang D-H. Effect of surface characteristics on the bactericidal efficacy of UVC LEDs. Food Control. 2020;108:106869.

Jarvis P, Autin O, Goslan EH, Hassard F. Application of ultraviolet light-emitting diodes (UV-LED) to full-scale drinking-water disinfection. Water. 2019;11(9):1894.

Song K, Mohseni M, Taghipour F. Application of ultraviolet light-emitting diodes (UV-LEDs) for water disinfection: A review. Water research. 2016;94:341-9.Shin J-Y, Kim S-J, Kim D-K, Kang D-H. Fundamental characteristics of deep-UV light-emitting diodes and their application to control foodborne pathogens. Applied and environmental microbiology. 2016;82(1):2-10.

Kim S-J, Kim D-K, Kang D-H. Using UVC light-emitting diodes at wavelengths of 266 to 279 nanometers to inactivate foodborne pathogens and pasteurize sliced cheese. Applied and environmental microbiology. 2016;82(1):11-7.

Donnaz S. Water reuse practices, solutions and trends at international. Advances in Chemical Pollution, Environmental Management and Protection. 6: Elsevier; 2020. p. 65-102.

Gerchman Y, Mamane H, Friedman N, Mandelboim M. UV-LED disinfection of Coronavirus: Wavelength effect. Journal of Photochemistry and Photobiology B: Biology. 2020;212:112044.

Kim D-K, Kang D-H. UVC LED irradiation effectively inactivates aerosolized viruses, bacteria, and fungi in a chamber-type air disinfection system. Applied and environmental microbiology. 2018;84(17):e00944-18.

Yaun BR, Sumner SS, Eifert JD, Marcy JE. Response of Salmonella and Escherichia coli O157: H7 to UV energy. Journal of Food Protection. 2003;66(6):1071-3.

Gross A, Stangl F, Hoenes K, Sift M, Hessling M. Improved drinking water disinfection with UVC-LEDs for Escherichia coli and Bacillus subtilis utilizing quartz tubes as light guide. Water. 2015;7(9):4605-21.

Ahsanulhaq Q, Umar A, Hahn Y. Growth of aligned ZnO nanorods and nanopencils on ZnO/Si in aqueous solution: growth mechanism and structural and optical properties. Nanotechnology. 2007;18(11):115603.

Eisenlöffel L, Reutter T, Horn M, Schlegel S, Truyen U, Speck S. Impact of UVC-sustained recirculating air filtration on airborne bacteria and dust in a pig facility. PloS one. 2019;14(11):e0225047.