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Electrochemical incineration of cresols: a comparative study between PbO2 and boron-doped diamond anodes.
Chemosphere. 2009 Mar; 74(10):1340-7.C

Abstract

The electrooxidation of aqueous solutions containing 5mM of o-, m- and p-cresol at pH 4.0 has been investigated using a flow filter-press reactor with a boron-doped diamond (BDD) under galvanostatic electrolysis. All cresols are degraded at similar rate up to attaining overall mineralization. Comparable treatment of the m-cresol effluent on PbO(2) leads to partial electrochemical incineration. However, this pollutant is more rapidly removed with PbO(2) than with BDD. The decay kinetics of all cresols follows a pseudo-first-order reaction. Aromatic intermediates such as 2-methylhydroquinone and 2-methyl-p-benzoquinone and carboxylic acids such as maleic, fumaric, pyruvic, malonic, tartronic, glycolic, glyoxylic, acetic, oxalic and formic, have been identified and followed during the m-cresol treatment by chromatographic techniques. From these oxidation by-products, a plausible reaction sequence for m-cresol mineralization on both anodes is proposed. The energy consumption for the corresponding electrochemical process is also calculated.

Authors+Show Affiliations

Departament de Química Física, Facultat de Química, Laboratori d'Electroquímica dels Materials i del Medi Ambient, Universitat de Barcelona, Martí i Franquès 1-11, Barcelona, Spain.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19118859

Citation

Flox, Cristina, et al. "Electrochemical Incineration of Cresols: a Comparative Study Between PbO2 and Boron-doped Diamond Anodes." Chemosphere, vol. 74, no. 10, 2009, pp. 1340-7.
Flox C, Arias C, Brillas E, et al. Electrochemical incineration of cresols: a comparative study between PbO2 and boron-doped diamond anodes. Chemosphere. 2009;74(10):1340-7.
Flox, C., Arias, C., Brillas, E., Savall, A., & Groenen-Serrano, K. (2009). Electrochemical incineration of cresols: a comparative study between PbO2 and boron-doped diamond anodes. Chemosphere, 74(10), 1340-7. https://doi.org/10.1016/j.chemosphere.2008.11.050
Flox C, et al. Electrochemical Incineration of Cresols: a Comparative Study Between PbO2 and Boron-doped Diamond Anodes. Chemosphere. 2009;74(10):1340-7. PubMed PMID: 19118859.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Electrochemical incineration of cresols: a comparative study between PbO2 and boron-doped diamond anodes. AU - Flox,Cristina, AU - Arias,Conchita, AU - Brillas,Enric, AU - Savall,André, AU - Groenen-Serrano,Karine, Y1 - 2008/12/31/ PY - 2008/08/03/received PY - 2008/11/20/revised PY - 2008/11/20/accepted PY - 2009/1/3/entrez PY - 2009/1/3/pubmed PY - 2009/4/25/medline SP - 1340 EP - 7 JF - Chemosphere JO - Chemosphere VL - 74 IS - 10 N2 - The electrooxidation of aqueous solutions containing 5mM of o-, m- and p-cresol at pH 4.0 has been investigated using a flow filter-press reactor with a boron-doped diamond (BDD) under galvanostatic electrolysis. All cresols are degraded at similar rate up to attaining overall mineralization. Comparable treatment of the m-cresol effluent on PbO(2) leads to partial electrochemical incineration. However, this pollutant is more rapidly removed with PbO(2) than with BDD. The decay kinetics of all cresols follows a pseudo-first-order reaction. Aromatic intermediates such as 2-methylhydroquinone and 2-methyl-p-benzoquinone and carboxylic acids such as maleic, fumaric, pyruvic, malonic, tartronic, glycolic, glyoxylic, acetic, oxalic and formic, have been identified and followed during the m-cresol treatment by chromatographic techniques. From these oxidation by-products, a plausible reaction sequence for m-cresol mineralization on both anodes is proposed. The energy consumption for the corresponding electrochemical process is also calculated. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/19118859/Electrochemical_incineration_of_cresols:_a_comparative_study_between_PbO2_and_boron_doped_diamond_anodes_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(08)01469-0 DB - PRIME DP - Unbound Medicine ER -