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Type: Artigo de periódico
Title: Avaliação da degradação do diclofenaco sódico utilizando H2O2/fenton em reator eletroquímico
Title Alternative: Evaluation of the degradation of sodium diclofenac using H2O2/fenton in electrochemical reactor
Author: Rocha, Robson S.
Beati, André A. G. F.
Oliveira, Joaquim G.
Lanza, Marcos R. V.
Abstract: This paper describes a degradation study of the anti-inflammatory sodium diclofenac in aqueous medium using an electro-chemical flow reactor with a gas diffusion electrode as cathode. Two degradation processes were compared: by H2O2 electro-generated and H2O2 electro-generated/Fe(II). Concentration of sodium diclofenac was determined during the experiments by HPLC. The changes in chemical oxigen demand (COD) were also evaluated. Under the specific reaction conditions, 350 mg L-1 of H2O2 was electro-generated and 99.2% of sodium diclofenac was degradated, with 27.4% COD reduction. At the same conditions, but using Fe(II), drug degradation was 99.4% and the COD reduction was 63.2%.
Subject: sodium diclofenaco
electrochemical reactor
gas diffusion electrode
Editor: Sociedade Brasileira de Química
Rights: aberto
Identifier DOI: 10.1590/S0100-40422009000200016
Date Issue: 1-Jan-2009
Appears in Collections:Unicamp - Artigos e Outros Documentos

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