Hydrogen Peroxide Continuous Dosage in the Photo-Fenton Process: Comparative Study between Lab-Scale and Solar Reactor.

AGUSTINA V. SCHENONE; BARBARA N. GIMÉNEZ; NAHUEL CABRERA; LEANDRO O. CONTE

Florianópolis

Congreso; VI Iberoamerican Conference on Advanced Oxidation Technologies (CIPOA); 2024

University of Santa Catarina

The role of continuous hydrogen peroxide (HP) dosage in the ferrioxalate-assisted photo-Fenton process is crucial for optimizing its efficiency. This study aims to compare the effectiveness of HP continuous dosage between lab-scale and solar reactor experiments in the abatement of paracetamol (PCT) at circumneutral pH. The effects of an initial pulse of HP and dosing time, as well as HP concentration, were studied in the lab experiments with ultrapure water. The conditions in which the best results were obtained were tested in a simulated industrial wastewater, but only 18.9% of conversion was reached. On the other hand, PCT was almost completely destroyed (95.4%) when the solar reactor was used with the same complex matrix. However, despite the great accumulated energy, a high toxicity level remained at the end of the reaction.