Abstract
This paper proposes a new approach to PEM electrolysis, by replacing the conventional anodic reaction, by a reaction of lower energy requirements and technological application. Hydrogen is generated in the catholyte, through the reduction of protons on a cathode of stainless steel in acidic medium (H2SO4 1M), with a difference potential of 1V with a solar panel. While the anolyte is produced, a mixture of ions Fe2+/Fe3+ from the oxidation of a sacrificial electrode, made of carbon steel mesh, was used as anolyte Na2SO4 0.05M (pH≈2.5). The generation of iron ions in the anolyte is harnessed for the development of a Fenton type process in the presence of H2O2. Ions Fe2+/Fe3+ to interact with the H2O2 generated strong oxidants which are responsible for oxidizing organic matter. The main results show that it is possible to oxidize almost completely, different concentrations of Reactive Black 5 (0.00012M and 0.00024M) in 40 minutes.
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