Abstract

ARDILA ARIAS, Alba Nelly et al. Ethylene glycol mineralization by ferrioxalate-induced photo-fenton. Rev. Int. Contam. Ambient [online]. 2016, vol.32, n.2, pp.213-226. ISSN 0188-4999.  https://doi.org/10.20937/RICA.2016.32.02.07.

The effectiveness of the ethylene glycol mineralization using ferrioxalate-induced photo-Fenton was evaluated. The efficiency of 1000 mg/L ethylene degradation was a function of the initial concentrations of ferrous ion, oxalate and hydrogen peroxide. The highest levels of degradation (90 and 85 % for distilled water and wastewater from the paint industry, respectively) were obtained using 10 mg/L of Fe2+, 150 mg/L of ${\mathrm{C}}_2{\mathrm{O}}_4^{2-}$ and 500 mg/L of H2O2 after 3 hours of UV artificial irradiation (wavelength ~ 365 nm). Ethylene glycol was converted to acetic acid and formic acid in trace amounts (< 136 mg/L) resulting in a decrease of chemical oxygen demand due this contaminant. No other intermediate products were detected.

Keywords : wastewater from the paint industry; hydrogen peroxide; ferrous ion; oxalic ion.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )