info:eu-repo/semantics/article
Characterization of the degradation performance of the sulfamethazine antibiotic by photo-Fenton process
Fecha
2010-04Registro en:
Pérez Moya, Montserrat; Graells, Moisès; Castells, Gloria; Amigó, Jordi; Ortega, Esther; et al.; Characterization of the degradation performance of the sulfamethazine antibiotic by photo-Fenton process; Pergamon-Elsevier Science Ltd; Water Research; 44; 8; 4-2010; 2533-2540
0043-1354
CONICET Digital
CONICET
Autor
Pérez Moya, Montserrat
Graells, Moisès
Castells, Gloria
Amigó, Jordi
Ortega, Esther
Buhigas, Guillem
Perez, Leonardo Martin
Mansilla, Héctor D.
Resumen
The present study provides results describing the degradation performance of the Sulfamethazine (SMT) antibiotic via photo-Fenton treatment. Experiments were carried out using 1L solution samples of SMT (50mgL-1) under different conditions. HPLC results reveal that both Fenton and photo-Fenton reactions were able to completely remove SMT antibiotic from the studied samples in less than 2min treatment. Half-life times and kinetic parameters (assuming a pseudo-first-order kinetics at reaction initial stage, far from the equilibrium) for SMT degradation were determined and discussed. Hence, appropriate Fenton reagent loads are given to attain different targets proposed. TOC and HPLC data also revealed the presence of reaction intermediates; thus toxicity assays were performed regarding bacterial growth rate. The toxicity of an SMT solution was shown to increase during its degradation by means of photo-Fenton reactions.