Water Disinfection

Water Disinfection

WAVELENGTHS: 280NM-265NM

UVC light rays can penetrate bacteria, viruses, molds, and other pathogens and inactivate nucleic acids that allow the germ to reproduce. This radiation renders the pathogens harmless, allowing safe water use without changing the taste, odor, or clarity of the water. As hardy bacteria like giardia and cryptosporidium cannot be effectively treated with chemicals like chlorine, UV radiation can be an efficient and powerful solution for water treatment.

UVC LEDs are a compact, non-toxic, and powerful method of disinfecting harmful microorganisms in water.

Compared with traditional lamps, the flexibility in wavelength tunability offered by UV LEDs offer a more targeted approach to disinfection, as peak wavelengths of inactivation vary depending on the pathogen type. While lamp systems can reach high flux at 254.7nm, UV LEDs at 280nm can reach similar inactivation with less electrical power consumption per reduction.


UV LEDs are also packaged in compact designs with lower power consumption, opening up innovative designs in point-of-use water disinfection technologies such as battery-powered water bottles or faucet-attaching modules. With greater flexibility in form factor and wavelengths, UV LEDs are well-positioned to provide non-toxic, revolutionary water treatment methods with the ongoing improvements in efficiency and integration of UV LED systems.

This work was performed at University of British Columbia to develop a modular, energy-efficient, and spectrally tunable lighting system for photochemical experiments for simulating stratospheric, tropospheric and indoor light conditions.
This technical application note provides information on Violumas’ ultra-narrow beam lenses and their use in UV LED systems. It introduces the underlying optical principles, key performance considerations, and potential applications of Violumas’ ultra-narrow beam angle – the Viobeam Product. The document is intended to help users understand how these lenses can be used to achieve precise, focused UV illumination in demanding applications.
Although UV LEDs have a compact form factor, they generate a substantial amount of heat through a small surface area

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