Electrochemical Incineration of Phenolic Compounds from the Hydrocarbon Industry Using Boron-Doped Diamond Electrodes

Electrochemical incineration using boron-doped diamond electrodes was applied to samples obtained from a refinery and compared to the photo-electro-Fenton process in order to selectively eliminate the phenol and phenolic compounds from a complex matrix. Due to the complex chemical composition of the...

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Bibliographic Details
Published in:International journal of photoenergy 2012, Vol.2012 (2012), p.1-6
Main Authors: Medel, Alejandro, Bustos, Erika, Esquivel, Karen, Godínez Mora-Tovar, L. A., Meas, Yunny
Format: Article
Language:English
Subjects:
Aquatic life
Boron
Chemical oxygen demand
Comparative analysis
Drinking water
Efficiency
Electrodes
Methods
Oxidation
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Summary:Electrochemical incineration using boron-doped diamond electrodes was applied to samples obtained from a refinery and compared to the photo-electro-Fenton process in order to selectively eliminate the phenol and phenolic compounds from a complex matrix. Due to the complex chemical composition of the sample, a pretreatment to the sample in order to isolate the phenolic compounds was applied. The effects of the pretreatment and of pH on the degradation of the phenolic compounds were evaluated. The results indicate that the use of a boron-doped diamond electrode in an electrochemical incineration process mineralizes 99.5% of the phenolic sample content. Working in acidic medium (pH = 1), and applying 2 A at 298 K under constant stirring for 2 hours, also results in the incineration of the reaction intermediates reflected by 97% removal of TOC. In contrast, the photo-electro-Fenton process results in 99.9% oxidation of phenolic compounds with only a 25.69% removal of TOC.
ISSN:1110-662X
1687-529X
DOI:10.1155/2012/681875