Hydroxyl radical production by heterogenous Fenton reaction supported in insoluble tannin bark of Pinus radiata

ROMERO, R.; CONTRERAS, D.; SEGURA, C., SCHWEDERSKI, B.; KAIM, W.:
VIII Encontro sobre Aplicações Ambientais de Processos Oxidativos Avançados II Congresso Iberoamericano de Processos Oxidativos Avançados, 3 a 6 de novembro de 2015 – Belo Horizonte – MG – Brasil.

Abstract

In this work we made a modification of the conventional Fenton reaction for increase the hydroxyl radical production with a heterogeneous system employing hydrogen peroxide and a solid iron container with dihydroxybenzenes, as the literature indicates that amplify Fenton reaction. The measure of hydroxyl radical was made by Electron Paramagnetic Resonance (EPR) in differents systems. The advantage of this approach is the use of a water insoluble solid, which drive Fenton reaction but prevents contamination of the effluent with phenolic compounds and also have an important environmental value to be obtained from forest bark waste, specifically Pinus radiata.

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