Conference proceedings

Displaying 1 - 2 of 2 in CEST2021 (remove filter), Advanced oxidation processes (remove filter), caffeine (remove filter)

CEST Proceedings are published under the ISSN 2944-9820.

Caffeine oxidation by sono-Fenton treatment

Lomas J., (Corresponding) Villota N., Ferreiro C., Camarero L., Lombraña J.

Topic:

Advanced oxidation processes

Oxidation of waters containing caffeine was conducted by a sono-Fenton treatment employing an ultrasound power of 720 W at pH=3.0 and T=25°C. The catalytic action of ferrous ion was studied in a range of [Fe]=0-100.0 mg/L and oxidant concentrations between [H2O2]=0-250.0 mM. The oxidation of...Read more

Keywords:

aromaticity, caffeine, color, turbidity, sono-Fenton

DOI:

https://doi.org/10.30955/gnc2021.00015

Paper ID:

cest2021_00015

Comparison of caffeine oxidation by Fenton reagent in combination with UV light and ultrasound waves

(Corresponding) Villota N., Lomas J., Ferreiro C., Lombraña J.

Topic:

Advanced oxidation processes

The oxidation of aqueous caffeine solutions ([Ca]0=100.0 mg L-1) was analysed, operating at pH=3.0 and 25ºC using different AOPs, which combine the Fenton reagent ([H2O2]0=15.0 mM and [Fe2+]0=20.0 mg L-1) with low power UV light (15W,), medium (150W), and high (720 W). The Fenton reagent, combined...Read more

Keywords:

AOPs, caffeine, Fenton reagent, ultrasounds waves, ultraviolet light

Paper ID:

cest2021_00338