Effects of excimer UV radiation on microorganisms

Laroussi, Arwa; Dobbs, Fred C.; Wei, Zeyong; Doblin, A.; Ball, L.; Moreira, K.R.; Dyer, Fred; Richardson, John P.

doi:10.1109/ppps.2001.960996

Cited by 3 publications

(1 citation statement)

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“…UV light assemblies are self-contained-water flows around the UV lights, which are housed in protective sleeves. Effectiveness is influenced by light intensity and contact time [7], [8]. In addition to water treatment, UV applications include food preparation, beverage industry, cosmetics, ozone generation, and air disinfection [9]- [11].…”

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confidence: 99%

High-Power-Factor Electronic Ballast With Intelligent Energy-Saving Control for Ultraviolet Drinking-Water Treatment Systems

Wang¹,

Liu²

2008

IEEE Trans. Ind. Electron.

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Over the past few decades, ultraviolet (UV) water treatment has become widely recognized and accepted by regulatory agencies as a proven disinfection process. With the increased awareness of health concerns and water quality, UV disinfection is quickly gaining popularity in the consumer market as a safe, effective, and economical approach to disinfection. In order to disinfect properly, conventional UV water-treatment systems keep their light intensity at maximum level regardless of the operating condition; this will result in unnecessary energy waste along with lamp-life-span reduction. In this paper, a new design of highpower-factor low-cost electronic ballast with intelligent control for UV water-treatment system is proposed. For the purposes of energy saving, an intelligent-control algorithm is proposed to dim the luminance of the UV lamp according to the measured water flow rate and UV light intensity. Accurate knowledge of the characteristics of the UV lamps is essential for the ballast design. Therefore, an automatic identification system is also proposed in this paper to obtain the characteristic parameters, which are the dynamic and steady-state profiles of the UV lamps. Systematic design procedures are then presented accordingly. The proposed UV water-treatment system boasts the advantages, such as compactness, low cost, and energy saving, and is suitable for residential users. According to the experimental results, the energy-saving capability of the proposed system is better than 50%.Index Terms-Automatic identification system, electronic ballast, energy saving, ultraviolet (UV) disinfection, water-treatment system.

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confidence: 99%

High-Power-Factor Electronic Ballast With Intelligent Energy-Saving Control for Ultraviolet Drinking-Water Treatment Systems

Wang¹,

Liu²

2008

IEEE Trans. Ind. Electron.

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Automated System for Lavatory Disinfection

Joseph¹,

Thaikattil²,

Suresh³

et al. 2021

IOP Conf. Ser.: Mater. Sci. Eng.

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Instead of that conventional method of chemical (sanitizer spray) disinfection, this paper introduces a novel idea to fight the attack of microbes causing infections and diseases from the source like lavatory and specially its seat. Here we utilize the germicidal power of ultra violet light ray’s. i.e. Ultra Violet C range of the light spectrum against the viruses (SARS-CoV-2), bacteria (E. coli) and other microbes. This system of disinfection constitutes the UV LEDs placed on the arm above the toilet seat. The range of wavelength is from 200nm to 280nm. Implementation of this technique ensures safety, by human free room with the automatic motion control using Arduino, motor and door locking gadgets. UVC light is very advantageous over other methods as it is eco-friendly, chemical free, non-corrosive, and no hazardous waste is produced and also inactivates viruses by attacking the DNA strands in the microbes ensuring that the replication does not happen further stops spreading of contagious diseases leading to pandemic. Usage of toilet paper and other methods used conventionally could come to an end. Thus an effective idea is derived for the hygiene establishment.

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High power factor electronic ballast with intelligent energy saving control for ultraviolet lamps drive

Wang

Liu

Fourtieth IAS Annual Meeting. Conference Record of the 2005 Industry Applications Conference, 2005.

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Effects of excimer UV radiation on microorganisms

Cited by 3 publications

References 1 publication

High-Power-Factor Electronic Ballast With Intelligent Energy-Saving Control for Ultraviolet Drinking-Water Treatment Systems

High-Power-Factor Electronic Ballast With Intelligent Energy-Saving Control for Ultraviolet Drinking-Water Treatment Systems

Automated System for Lavatory Disinfection

High power factor electronic ballast with intelligent energy saving control for ultraviolet lamps drive

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