Fevereiro 2015 vol. 1 num. 2 - XX Congresso Brasileiro de Engenharia Química

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PROCESS INTENSIFICATION AT NEAR NEUTRAL pH OF A HOMOGENOUS PHOTO-FENTON REACTION USING FERRICARBOXYLATE COMPLEXES: APPLICATION TO OXYTETRACYCLINE DEGRADATION

PEREIRA, J. H. O. S. ; QUEIRÓS, D. B. ; REIS, A. C. ; NUNES, O. C. ; BORGES, M. T. ; BOAVENTURA, R. A. R. ; VILAR, V. J. P. ;

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This work demonstrates the application at near neutral pH of the photo- Fenton process mediated by ferricarboxylates on the treatment of aqueous solutions containing the antibiotic Oxytetracycline (OTC) under solar irradiation. The formation of a Fe:OTC complex after Fe2+ oxidation to Fe3+, in the presence of H2O2, showed the inconvenience of using the conventional Fe2+/H2O2/UV-Vis process at near neutral pH levels, as the Fe:OTC complex is retained in the filter. To overcome this, a Fe3+/Oxalate process was proposed. Process efficiency was evaluated for variables such as Fe3+ concentration and pH, using a compound parabolic collector (CPC) photoreactor at lab-scale under simulated solar radiation. The effect of the matrix was also tested by spiking OTC into two different real wastewaters.

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DOI: 10.5151/chemeng-cobeq2014-1984-16544-146795

Referências bibliográficas
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Como citar:

PEREIRA, J. H. O. S.; QUEIRÓS, D. B.; REIS, A. C.; NUNES, O. C.; BORGES, M. T.; BOAVENTURA, R. A. R.; VILAR, V. J. P.; "PROCESS INTENSIFICATION AT NEAR NEUTRAL pH OF A HOMOGENOUS PHOTO-FENTON REACTION USING FERRICARBOXYLATE COMPLEXES: APPLICATION TO OXYTETRACYCLINE DEGRADATION", p. 9543-9550 . In: Anais do XX Congresso Brasileiro de Engenharia Química - COBEQ 2014 [= Blucher Chemical Engineering Proceedings, v.1, n.2]. São Paulo: Blucher, 2015.
ISSN 2359-1757, DOI 10.5151/chemeng-cobeq2014-1984-16544-146795

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