Ultraviolet (UV) light is at the invisible, violet end of the light spectrum. Even though we can't see UV light, we are exposed to UV rays from all light sources, including the sun.How does ultraviolet light purify water? UV-C rays penetrate the cells of harmful bacteria and viruses in...
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Irradiation with UV-C band ultraviolet light is one of the most commonly used ways of disinfecting water contaminated by pathogens such as bacteria and viruses. Sonoluminescence, the emission of light from acoustically-induced collapse of air bubbles in
UV light in different forms has been used extensively since the early 20th century to sanitize air, water and surfaces. As early as the 1940s, it was used to lessen the transmission of tuberculosis in classrooms and hospitals, by directing the light at the ceiling to purify the air as it...
A short wave UV–C sterilizing tube lamps emits radiation that is destructive enough to purify water of living contaminants and to sterilize medical equipment. It has a variety of industrial uses and is considered "germicidal." Sources, Techniques, and Filters ...
Air cleaners are generally not designed to eliminate gaseous particles or living organisms. Many companies tout "ozone generators" as the best thing for indoor air pollution. This is not the best way to purify indoor air… Ozone Generators That Are Sold as Air Cleaners (See the "Ozone Air ...
LightSources invests in continual research and development to provide innovative, first to market lamps and UV C light bulb options. Most UVC bulbs are Low-Pressure and Medium Pressure Mercury Discharge lamps. The low pressure UVC lamp is similar to the standard fluorescent lamp in construc...
Deep UV LED water purification The wavelength range of deep UV LED water purification is 220nm-285nm. Its sterilization principle is to destroy the DNA structure of microorganisms and make bacteria die or unable to reproduce, so as to achieve the purpose of sterilization. It is pure physical ...
(diluted by 10−2), were characterized in terms of colony morphotypes, and isolated on Petri dishes containing solid LB medium by the depletion technique, to purify the isolates. The purity of cultures was observed by homogeneity of each morphotype and by the Gram staining technique. ...
A University of Wyoming researcher and his team have shown that the spin Seebeck effect (SSE) can be used to detect light across a broad optical range—ultraviolet through visible to near-infrared. This work has future implications on novel spin current-