Estudo da degradação de ranitidina via H2O 2 eletrogerado/fenton em um reator eletroquímico com eletrodos de difusão gasosa

Abstract

The study of the electrochemical degradation of the ranitidine was developed using an electrochemical reactor with a gas diffusion electrode (GDE) as cathode. The electrolysis experiments was performed at constant current (1 ≤ A ≤ 10) and flow rate of 200 L h-1. The process of drug degradation, chemical/electrochemical and electro-Fenton ways, using electrochemical reactor showed best efficiency at current values of ≥ 4 A. The process reached a production of 630 mg L-1 of the H 2O2 at 7 A. The ranitidine concentrations was reduced in 99.9% (HPLC) and chemical oxygen demand (COD) was reduced in 86.7% by electio-Fenton.