RT Journal Article
T1 A chemometric approach to the interaction of hydrogen peroxide and thermally activated persulfate in the removal of aromatic compounds.
A1 Faggiano, Antonio
A1 Martínez Piernas, Ana Belén
A1 Ricciardi, Maria
A1 Motta, Oriana
A1 Fiorentino, Antonino
A1 Proto, Antonio
K1 Aguas residuales - Purificación
K1 Aguas residuales - Oxidación
K1 Fenoles
K1 Biodegradación
K1 Modelos matemáticos
AB This study evaluates the combined use of H₂O₂ and thermally activated S₂O₈2⁻ (T-PDS) for the degradation of phenolic compounds (PhOH) in wastewater, aiming to limit or eliminate sludge production. Phenolic compounds are common in industrial effluents, and their effective removal is crucial for reducing environmental impact. The study employs Response Surface Methodology (RSM) and Principal Component Analysis (PCA) to optimise critical variables such as temperature, pH, and oxidant concentrations. Optimal conditions were determined to be a temperature of 70 °C, pH 5, and a H2O2/S2O82− molar ratio of 1:6. Under these conditions, the system achieved an 89% PhOH degradation efficiency, reducing the concentration from 10 to 1.2 mg L−1 after 120 min of treatment. The kinetic analysis revealed a rapid initial reduction in PhOH concentration by 38% (from 10 to 6.2 mg L−1) within the first 15 min, followed by a slower degradation phase. This suggests a complex reaction mechanism, likely influenced by oxidant consumption and intermediate formation. The model demonstrated high precision, with R2 values of 0.99 for PhOH and S2O82−and slightly lower for H₂O₂ (R2 = 0.98). A brief cost analysis estimated the treatment cost at €6.86 per cubic meter of wastewater, showing the economic viability of the process. Additionally, eliminating sludge formation reduces operational costs related to sludge management and disposal, making the H2O2/T-PDS system a promising solution for large-scale industrial applications in sustainable wastewater treatment.
PB Elsevier
YR 2025
FD 2025-01
LK https://hdl.handle.net/10630/41253
UL https://hdl.handle.net/10630/41253
LA eng
NO Antonio Faggiano, Ana B. Martínez-Piernas, Maria Ricciardi, Oriana Motta, Antonino Fiorentino, Antonio Proto, A chemometric approach to the interaction of hydrogen peroxide and thermally activated persulfate in the removal of aromatic compounds, Journal of Environmental Management, Volume 373, 2025, 123957, ISSN 0301-4797, https://doi.org/10.1016/j.jenvman.2024.123957
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 19 ene 2026