Influence of simulated solar radiation on micropollutant removal with ferrioxalate-assisted photo-Fenton

SCHENONE, AGUSTINA V.; GIMÉNEZ, BÁRBARA N.; CONTE, LEANDRO O.; ALFANO, ORLANDO M.

Cusco

Congreso; 5th Iberoamerican Conference on Advanced Oxidation Technologies (V CIPOA); 2022

Universidad Nacional de Ingeniería (Perú)

This study is focused on the degradation of paracetamol (PTC) ata concentration usually detected in wastewater effluents (μg L-1),by photo-Fenton at near neutral pH, using ferrioxalate as ironsource and simulated solar radiation. To this aim, 500 μg L-1 wastreated with low concentration of Fenton reagents (Fe= 1 mg L-1and H2O2=2.36 mg L-1), and the incident irradiation was evaluatedin three levels: OFF (Fenton), LOW (31.6 W m-2) and HIGH (57.5W m-2). PCT was monitored during the reaction by the aid of anoptimized solid phase extraction technique followed by HPLCUV/Vis. The lowest PCT conversion after 90 min of reaction wasobtained in the dark reaction, meanwhile 94.4% was achievedwith the HIGH radiation level, highlighting the beneficial effect ofradiation on the system. In addition, the value of oxidantconsumption obtained for Fenton process was higher than thecorresponding values observed for photo-Fenton system.