Electrochemical incineration of chloromethylphenoxy herbicides in acid medium by anodic oxidation with boron-doped diamond electrode

2006 ◽  
Vol 51 (14) ◽  
pp. 2872-2880 ◽  
Author(s):  
Birame Boye ◽  
Enric Brillas ◽  
Beatrice Marselli ◽  
Pierre-Alain Michaud ◽  
Christos Comninellis ◽  
...  
Keyword(s):  
Acid Medium ◽  
Anodic Oxidation ◽  
Boron Doped Diamond ◽  
Diamond Electrode ◽  
Boron Doped ◽  
Boron Doped Diamond Electrode ◽  
Electrochemical Incineration

scholarly journals A Comparative Analysis of 2-(Thiocyanomethylthio)-Benzothiazole Degradation Using Electro-Fenton and Anodic Oxidation on a Boron-Doped Diamond Electrode

2018 ◽  
Vol 2018 ◽  
pp. 1-9
Author(s):  
Armando Vázquez ◽  
Lucía Alvarado ◽  
Isabel Lázaro ◽  
Roel Cruz ◽  
José Luis Nava ◽  
...  
Keyword(s):  
Anodic Oxidation ◽  
Oxidation Process ◽  
Volumetric Flow Rate ◽  
Boron Doped Diamond ◽  
Aquatic Life ◽  
Diamond Electrode ◽  
Boron Doped ◽  
Boron Doped Diamond Electrode ◽  
Acidic Chloride ◽  
Anodic Oxidation Process

2-(Thiocyanomethylthio)-benzothiazole (TCMTB) is used as fungicide in the paper, tannery, paint, and coatings industries, and its study is important as it is considered toxic to aquatic life. In this study, a comparison of direct anodic oxidation (AO) using a boron-doped diamond electrode (BDD) and electro-Fenton (EF) processes for TCMTB degradation in acidic chloride and sulfate media using a FM01-LC reactor was performed. The results of the electrolysis processes studied in the FM01-LC reactor showed a higher degradation of TCMTB with the anodic oxidation process than with the electro-Fenton process, reaching 81% degradation for the former process versus 47% degradation for the latter process. This difference was attributed to the decrease in H2O2 during the EF process, due to parallel oxidation of chlorides. The degradation rate and current efficiency increased as a function of volumetric flow rate, indicating that convection promotes anodic oxidation and electro-Fenton processes. The results showed that both AO and EF processes could be useful strategies for TCMTB toxicity reduction in wastewaters.

Degradation of 4,6-dinitro-o-cresol from water by anodic oxidation with a boron-doped diamond electrode

2005 ◽  
Vol 50 (18) ◽  
pp. 3685-3692 ◽  
Author(s):  
Cristina Flox ◽  
José Antonio Garrido ◽  
Rosa María Rodríguez ◽  
Francesc Centellas ◽  
Pere-Lluís Cabot ◽  
...  
Keyword(s):  
Anodic Oxidation ◽  
Boron Doped Diamond ◽  
Diamond Electrode ◽  
Boron Doped ◽  
Boron Doped Diamond Electrode

Electrochemical incineration of vinasse in filter-press-type FM01-LC reactor using 3D BDD electrode

2008 ◽  
Vol 58 (12) ◽  
pp. 2413-2419 ◽  
Author(s):  
J. L. Nava ◽  
A. Recéndiz ◽  
J. C. Acosta ◽  
I. González
Keyword(s):  
Aqueous Media ◽  
Three Dimensional ◽  
Oxygen Demand ◽  
Electrochemical Reactor ◽  
Filter Press ◽  
Boron Doped Diamond ◽  
Diamond Electrode ◽  
Boron Doped ◽  
Boron Doped Diamond Electrode ◽  
Electrochemical Incineration

This work shows results obtained in the electrochemical incineration of a synthetic vinasse with initial chemical oxygen demand (COD) of 75.096 g L−1 in aqueous media (which resembles vinasse industrial wastewater). Electrolyses in a filter-press-type FM01-LC electrochemical reactor equipped with a three-dimensional (3D) boron doped diamond electrode (BDD) were performed at Reynolds values between 22 ≤ Re ≤ 109, and a fixed current density of 10 mA cm−2. The electrochemical incineration achieved up to 97% in vinasse mineralization with current efficiencies that surpass unity and energy consumption of 168 KW-h m−3, at Re =109. The mineralization of vinasse indicates that such degradation occurs via hydroxyl radicals formed by the oxidation of water on the BDD surface. Experimental data revealed that hydrodynamic conditions slightly influence the vinasse degradation rate and current efficiency, indicating that the oxidation involves a complex pathway.

Anodic Oxidation on a Boron-Doped Diamond Electrode Mediated by Methoxy Radicals

2012 ◽  
Vol 51 (22) ◽  
pp. 5443-5446 ◽  
Author(s):  
Takenori Sumi ◽  
Tsuyoshi Saitoh ◽  
Keisuke Natsui ◽  
Takashi Yamamoto ◽  
Mahito Atobe ◽  
...  
Keyword(s):  
Anodic Oxidation ◽  
Boron Doped Diamond ◽  
Methoxy Radicals ◽  
Diamond Electrode ◽  
Boron Doped ◽  
Boron Doped Diamond Electrode

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

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Alejandro Medel ◽  
Erika Bustos ◽  
Karen Esquivel ◽  
Luis A. Godínez ◽  
Yunny Meas
Keyword(s):  
Phenolic Compounds ◽  
Fenton Process ◽  
Complex Matrix ◽  
Diamond Electrodes ◽  
Boron Doped Diamond ◽  
Diamond Electrode ◽  
Boron Doped ◽  
Boron Doped Diamond Electrode ◽  
Complex Chemical Composition ◽  
Electrochemical Incineration

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.

Anodic Oxidation Behaviors of Methanol and Benzyl Alcohol at Boron-Doped Diamond Electrode

2005 ◽  
Vol 73 (12) ◽  
pp. 1014-1020 ◽  
Author(s):  
Chia-Chin CHANG ◽  
Li-Chia CHEN ◽  
Shyh-Jiun LIU ◽  
Shu-Fang HSU ◽  
Shan-Shan CHOU ◽  
...  
Keyword(s):  
Benzyl Alcohol ◽  
Anodic Oxidation ◽  
Boron Doped Diamond ◽  
Diamond Electrode ◽  
Boron Doped ◽  
Boron Doped Diamond Electrode ◽  
Oxidation Behaviors
Sign in / Sign up

Export Citation Format

Share Document