OATAO - Open Archive Toulouse Archive Ouverte Open Access Week

Electrochemical Degradation of Sodium Dodecylbenzene Sulfonate on Boron Doped Diamond and Lead Dioxide Anodes

Groenen-Serrano, Karine and Savall, André and Weiss, Elsa Electrochemical Degradation of Sodium Dodecylbenzene Sulfonate on Boron Doped Diamond and Lead Dioxide Anodes. (2006) Journal of New Materials for Electrochemical Systems, Vol.9 (n°3). p. 249. ISSN 1480-2422

[img] (Document in English)

PDF (Author's version) - Depositor and staff only - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
339kB

Abstract

In view to carry out a global treatment of used emulsions like that contained in effluents from metallurgic industries, the surfactant behaviour should be known. This paper reports a study of the electrochemical degradation of sodium dodecylbenzenesulfonate (SDBS), a quite common surfactant, encountered in effluents from metal industries. Electrochemical oxidation of solutions containing SDBS at initial concentrations of 25 and 250 ppm was performed in an electrolytic flow cell without separator. A comparison of the performance of PbO2 and BDD used as anodes in the same electrolysis cell are presented. Today PbO2 is a material commercially available, while BDD, not yet accessible at large scale is presented as a good candidate for electrochemical treatment of waste waters polluted by organics. Electrolyses monitored by Total Organic Carbon (TOC), Chemical Oxygen Demand (COD) and Liquid Chromatography (HPLC) measurements, have shown that BDD is more efficient than PbO2 for the same operating conditions. The study, focused on the BDD electrode in neutral or acidic media, under different current densities, have shown that SDBS is cut into small carboxylic acids (maleic, oxalic and formic acids), and that the aliphatic chain is attacked before the aromatic ring.

Item Type:Article
Additional Information:The original PDF of the article is available in: http://www.polymtl.ca/newmaterials/eng/inde
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
French research institutions > Centre National de la Recherche Scientifique - CNRS
Laboratory name:
Statistics:download
Deposited By: Guylène Abadie
Deposited On:15 Jul 2009 10:06

Repository Staff Only: item control page