Citation:

Scott, R., P. Mudimbi, M. Miller, M. Magnuson, S. Willison, R. Phillips, AND W. Harper. Advanced Oxidation of Tartrazine and Brilliant Blue with Pulsed Ultraviolet Light Emitting Diodes. WATER ENVIRONMENT RESEARCH. Water Environment Federation, Alexandria, VA, 89(1):24-31, (2017).

Impact/Purpose:

Advanced oxidation with pulsed ultraviolet light-emitting diodes (UV LEDs) was used to degrade Brilliant Blue FCF (BB) and Tartrazine (TAR) in laboratory scale experiments. This study investigated the effect of ultraviolet light-emitting diodes (UVLEDs) coupled with hydrogen peroxide as an advanced oxidation process (AOP) for the degradation of the two test chemicals. Advanced oxidation processes (AOPs) are important to the water sector because they can destroy toxic or refractory water pollutants. BB and TAR were the target compounds and relevant in the case because they are both anionic dyes that are not expected to adsorb to the LEDs, are, like other food dyes, capable of causing negative health impacts and have structural features (e.g. aromatic rings) that are common to many organic water pollutants. Results from the study demonstrated the potential of UV LED treatment for contaminated water and call attention to factors that may impact UV LED system performance, such as mixing, duty cycle, chemical structure, LED staining, and operating time.

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Journal Article

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