Light-emitting diode (LED) technology has recently attained significant development regarding cost reduction and energy efficiency, in this sense low energy consuming LEDs with a wide range of wavelengths and radiant flux are currently available. In this work, the use of low-cost UVA-LEDs is explored as radiation source for photo-Fenton process as tertiary water treatment. To this end, the removal of the neonicotinoid pesticide acetamiprid (ACTM) at different wavelengths (365 – 400 nm), irradiances (10 – 50 W/m2), iron concentrations (1 – 16.5 ppm) and liquid depth (5 – 25 cm) has been studied. The kinetics of micropollutants removal by photo-Fenton has been studied as a function of the volumetric rate of photon absorption (VRPA, W/m3). The main goal of this study has been to get some insight on the relationships among energy supply, LED consumption, UVA irradiance and reaction rate.

Micropollutant removal by photo-Fenton process using UVA-LED as radiation source

251st National Meeting (2016)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.