A critical review of ultra-violet light emitting diodes as a one water disinfection technology.

ABSTRACT: UV light emitting diode (LED) disinfection technologies have advanced over the last decade and expanded the design space for applications in point of use, industrial, and now full-scale water treatment. This literature review examines the progression of UV LED technologies from 2007 to 2023 using key features such as total optical power, price, and wall-plug efficiency. The review found that optical power is increasing while the price per Watt is decreasing; however, the wall plug energy (WPE) is slowly improving over the last decade. These factors govern the feasibility of many UV LEDs applications and establish the current state of the art for these technologies. An analysis of inactivation rate constants for low-pressure, medium-pressure, and UV LED sources was undertaken and provides a

SUBMITTER: Rauch KD 

PROVIDER: S-EPMC11568360 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature