Shreeneet Rathi, SpaceUV Editor’s Note: Shreeneet Rathi presented “A new era of Upper Air UVGI Fixtures” at the 2023 IUVA World Congress. This Innovation Column expands on the technology discussed during that presentation. Indoor air quality (IAQ) is a critical factor in maintaining healthy and safe environments, especially in healthcare settings and densely occupied … [Read more...] about Innovation Column: Innovative Dose Delivery for Upper-Air UVGI Systems
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Measuring Hydroxyl Radical Scavenging in UV AOP
By Olya Keen, University of North Carolina at Charlotte, and Laith Furatian, Abbotsford-Mission Water and Sewer Services UV-based advanced oxidation processes (AOPs) are relatively energy intensive compared to conventional water treatment, consuming on the order of 0.1 to 1.0 kWh/m3. 1 Thus, a rational design basis is important to avoid overdesign of AOP systems. Role of … [Read more...] about Measuring Hydroxyl Radical Scavenging in UV AOP
Ultraviolet and Electron Beam as Applied to Cannabis
By Liz Stevens, writer, UV Solutions The use of Cannabis sativa L., whether the industrial hemp variety, the medical variety or the recreational variety, is on the rise. Revenue in the US from cannabis sales is projected to reach nearly $42B in 2024, with significant growth expected in the years to come. While it still is a Schedule I illegal substance under federal law, the … [Read more...] about Ultraviolet and Electron Beam as Applied to Cannabis
Digital UV Sensors Simplify Measurement and Control
By Tilman Weiss, sglux, and Fred Perry, Boston Electronics Irradiance is the term for the optical energy falling on a surface in units of watts per unit area. In the measurement and control of light for purposes of disinfecting or curing a surface or a volume, usually not only the total optical energy but more specifically the energy within a defined spectral interval is … [Read more...] about Digital UV Sensors Simplify Measurement and Control
UV LEDs for Surface Disinfection: Understanding Key Design Parameters and Development Workflow
By Pratibha Sharma, Ph.D., Saya Han and Peter Chung, Violumas Ultraviolet light is a known disinfectant, which reduces microbial load by denaturing pathogenic DNA. Wavelengths in the deep UV range, from 100 nm to 290 nm, with commercial devices available in the 200 nm to 280 nm range are the most suitable for microbial load reduction. While mercury lamps are commonly … [Read more...] about UV LEDs for Surface Disinfection: Understanding Key Design Parameters and Development Workflow
UV LEDs: Investigating Into and Beyond the Datasheets
By Pratibha Sharma, Ph.D., director of Applications Research and Development; Saya Han, sales director; and Peter Chung, marketing, Violumas Ultraviolet (UV) light has been proven to enable many innovative applications in the curing 1 and disinfection space. 2 The UV-C region, spanning between 200 nm and 280 nm, specifically has garnered immense attention due to proven … [Read more...] about UV LEDs: Investigating Into and Beyond the Datasheets
Commercialization Timing of Larger Scale UV-C LED-Based Water Treatment Systems
By Oliver Lawal and Andrea Martinez, AquiSense Technologies Unless you’ve been living under a rock in the UV industry, then it’s likely you’ve had more than one conversation about UV-C LEDs in the past few years. Whether you personally believe they already are commercialized, are two years away or are farther than 10 years, it’s undeniable that the tone has shifted from “will … [Read more...] about Commercialization Timing of Larger Scale UV-C LED-Based Water Treatment Systems
Innovation Column: European Wineries Now Have a UVC Option for Wine Barrel Disinfection
By Liz Stevens, writer, UV Solutions In winemaking, wine barrels are used during the aging process. There are stainless steel barrels, concrete barrels and even clay barrels, but the oak barrels used for red wine and Chardonnay probably are the best known. Aging in oak allows some oxygen to reach the wine and the wood imparts distinctive characteristics to the taste; some wine … [Read more...] about Innovation Column: European Wineries Now Have a UVC Option for Wine Barrel Disinfection
A Focus on UV LED Technology and AOP Applications in Water
Bailey Jones, MS Student, Department of Civil and Environmental Engineering, University of New Hampshire, bailey.jones@unh.edu James P. Malley Jr., Ph.D., professor of civil and environmental engineering, University of New Hampshire, jim.malley@unh.edu UV LED reactors to be used to provide a multi-barrier to Legionella in Las Vegas Valley Water District Historically, the UV … [Read more...] about A Focus on UV LED Technology and AOP Applications in Water
Application of UV LEDs in Advanced Oxidation Processes
By Priya Dharwadkar, Ph.D. student, Cranfield Water Science Institute, Cranfield University; Irene Carra, Ph.D., Lecturer in Chemical Processes, Cranfield Water Science Institute, Cranfield University; Peter Jarvis, Ph.D., Professor of Water Science & Technology, Cranfield Water Science Institute; Olivier Autin, Ph.D., Lead Process Engineer, Typhon Treatment Systems The … [Read more...] about Application of UV LEDs in Advanced Oxidation Processes