Comparison of different advanced oxidation processes (AOPs) in the presence of perovskites

Journal of Hazardous Materials
F J RivasJ Frades

Abstract

The efficacy of the oxidation systems: O3, UV radiation, O3/UV radiation, O3/perovskite, UV radiation/perovskite, O3/UV radiation/perovskite, H2O2/UV radiation, H2O2/UV radiation/perovskite, has been investigated by using pyruvic acid as probe compound. Under the operating conditions used, the combination of UV radiation and hydrogen peroxide (with or without perovskites) leads to the fastest pyruvic acid removal while the best results in terms of mineralization degree are obtained when combining O3/UV radiation/perovskite. The effect of the variables: inlet ozone (15-75 mg L(-1)) and initial pyruvic acid (10(-3) to 10(-2)M) concentrations, catalyst load (0.01-1.5 g L(-1)) and pH (2-9) was investigated for the photocatalytic ozonation. The most influencing parameter was the ozone concentration fed to the photoreactor. A zero order was observed for pyruvic acid concentration and close to zero for catalyst load. Some deactivation is observed after reusing the catalyst, likely due to leaching of the active phase.

References

Mar 9, 2005·Journal of Hazardous Materials·Olga GimenoF Javier Rivas

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Citations

Mar 1, 2015·Journal of Hazardous Materials·Javed Ali KhanHasan M Khan
Jun 29, 2016·Environmental Science and Pollution Research International·Sylwia MoziaAntoni W Morawski
Aug 29, 2020·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Cigdem Balcik-CanbolatBulent Keskinler
Sep 26, 2014·Chemical Reviews·Sébastien RoyerHoushang Alamdari

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