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
Applications
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
Several Key Issues Regarding the Application and Expansion of the IUVA Protocol
By Lianfeng Zhang, Laboratory of Ecology and Environmental Protection, Research Institute of Tsinghua University in Shenzhen The IUVA protocol (Lawal et al., 2008, 2017) for lamp measurement has been in use for 15 years, gaining significant global recognition and acceptance. Fifteen years of practical application have validated its capability to produce consistently … [Read more...] about Several Key Issues Regarding the Application and Expansion of the IUVA Protocol
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
Solar Simulators and Ultraviolet Radiation: Insights from Space-Based and Biological Applications
By Ryan Sawyer, Andrew Brzezinski, Stephen Walker and Heather MacGillivray, Sciencetech, Inc. In space, UV light exposure can degrade materials on spacecraft and compromise their integrity over time through photochemical reactions. Knowledge of the effects of UV exposure on materials is necessary for the design of all spacecraft, from the ISS to CubeSats. During the recent … [Read more...] about Solar Simulators and Ultraviolet Radiation: Insights from Space-Based and Biological Applications
Innovation: UV LEDs vs. Repair Pathways in Bacteria
By Liz Stevens, writer, UV Solutions When designing a UV treatment for the disinfection of water and wastewater against bacteria such as Escherichia coli, a bacterium’s recovery characteristics – its ability to self-repair – must be considered. Part of gauging the recovery potential includes assessing the water’s post-disinfection environment for self-repair-conducive … [Read more...] about Innovation: UV LEDs vs. Repair Pathways in Bacteria
Operator’s Corner: UV-AOPs for Water Reuse and Remediation: If You Had to Do It All Over Again…
Izzy Medeiros, MS Student, Civil and Environmental Engineering, University of New Hampshire, izzy.medeiros@unh.edu James P. Malley Jr., Ph.D., Editor-in-Chief, UV Solutions and Professor of Civil and Environmental Engineering, Department of Civil and Environmental Engineering, jim.malley@unh.edu The focus of this quarter’s survey was reaching out to facilities that have … [Read more...] about Operator’s Corner: UV-AOPs for Water Reuse and Remediation: If You Had to Do It All Over Again…
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