Distillery Wastewater Treated by Electrochemical Oxidation with Boron-Doped Diamond Electrodes

2011 ◽  
Vol 14 (2) ◽  
Author(s):  
Christian E. Alvarez-Pugliese ◽  
Paola Moreno-Wiedman ◽  
Fiderman Machuca-Martínez ◽  
Nilson Marriaga-Cabrales
Keyword(s):  
Electrochemical Oxidation ◽  
Linear Sweep Voltammetry ◽  
Direct Oxidation ◽  
Linear Sweep ◽  
Diamond Electrodes ◽  
Boron Doped Diamond ◽  
Boron Doped ◽  
Distillery Wastewater ◽  
Current Densities

AbstractElectrochemical oxidation of pretreated distillery wastewater was performed using a boron doped diamond anode (BDD). The role of direct oxidation of organic matter was assessed with experiments of linear sweep voltammetry, noting that the deactivation of the electrode surface occurs in the region of potentials below oxygen evolution. Then, galvanostatic bulk electrolyses were conducted during 4 hours at current densities (20 mAcm

scholarly journals On the Degradation of 17-β Estradiol Using Boron Doped Diamond Electrodes

Processes ◽  
2020 ◽  
Vol 8 (6) ◽  
pp. 710 ◽  
Author(s):  
Sandra Maldonado ◽  
Manuel Rodrigo ◽  
Pablo Cañizares ◽  
Gabriela Roa ◽  
Carlos Barrera ◽  
...  
Keyword(s):  
Uric Acid ◽  
Radical Scavenger ◽  
Direct Oxidation ◽  
Diamond Electrodes ◽  
Boron Doped Diamond ◽  
Oxidation Processes ◽  
Boron Doped ◽  
17Β Estradiol ◽  
Current Densities ◽  
Adsorption Desorption

This work focuses on the evaluation of the degradation of 17β-estradiol in a mixture of synthetic urine and methanol, trying to determine in which conditions the hormone can be more easily degraded than the urine compounds. This is in the frame of an overall study in which the pre-concentration stage with adsorption/desorption technology is evaluated to improve electrolysis efficiency. Results show that this pollutant can be efficiently removed from mixtures of urine/methanol by electrolysis with diamond electrodes. This removal is simultaneous with the removal of uric acid (used as a model of natural pollutants of urine) and leads to the formation of other organic species that behave as intermediates. This opens the possibility of using a concentration strategy based on the adsorption of pollutants using granular activated carbon and their later desorption in methanol. Despite methanol being a hydroxyl radical scavenger, the electrolysis is found to be very efficient and, in the best case, current charges lower than 7 kAh·m−3 were enough to completely deplete the hormone from urine. Increases in the operation current density lead to faster but less efficient removal of the 17β-estradiol, while increases in the operation flowrate do not markedly affect the efficiency in the removal. Degradation of 17β-estradiol is favored with respect to that of uric acid at low current densities and at high flowrates. In those conditions, direct oxidation processes on the surface of the anode are encouraged. This means that these direct processes can have a higher influence on the degradability of the hazardous species and opens the possibility for the development of selective oxidation processes, with a great economic impact on the degradation of the hazardousness of hospitalary wastewater.

scholarly journals Influence of Supporting Electrolytes on RO 16 Dye Electrochemical Oxidation Using Boron Doped Diamond Electrodes

2017 ◽  
Vol 20 (3) ◽  
pp. 584-591 ◽  
Author(s):  
Fernanda Lanzoni Migliorini ◽  
Andrea Boldarini Couto ◽  
Suellen Aparecida Alves ◽  
Marcos Roberto de Vasconcelos Lanza ◽  
Neidenêi Gomes Ferreira
Keyword(s):  
Electrochemical Oxidation ◽  
Diamond Electrodes ◽  
Boron Doped Diamond ◽  
Boron Doped

Pt-implanted Boron-doped Diamond Electrodes for Electrochemical Oxidation of Hydrogen Peroxide

2004 ◽  
Vol 33 (10) ◽  
pp. 1330-1331 ◽  
Author(s):  
Tribidasari A. Ivandini ◽  
Rika Sato ◽  
Yoshihiro Makide ◽  
Akira Fujishima ◽  
Yasuaki Einaga
Keyword(s):  
Hydrogen Peroxide ◽  
Electrochemical Oxidation ◽  
Diamond Electrodes ◽  
Boron Doped Diamond ◽  
Boron Doped ◽  
Oxidation Of Hydrogen

scholarly journals A comparative study of the electrochemical oxidation of the herbicide tebuthiuron using boron-doped diamond electrodes

Chemosphere ◽  
2012 ◽  
Vol 88 (2) ◽  
pp. 155-160 ◽  
Author(s):  
S.A. Alves ◽  
T.C.R. Ferreira ◽  
N.S. Sabatini ◽  
A.C.A. Trientini ◽  
F.L. Migliorini ◽  
...  
Keyword(s):  
Comparative Study ◽  
Electrochemical Oxidation ◽  
Diamond Electrodes ◽  
Boron Doped Diamond ◽  
Boron Doped

Gold-nanoparticle-dispersed Boron-doped Diamond Electrodes for Electrochemical Oxidation of Oxalic Acid

2005 ◽  
Vol 34 (8) ◽  
pp. 1086-1087 ◽  
Author(s):  
Tribidasari A. Ivandini ◽  
Yasutomo Naono ◽  
Atsushi Nakajima ◽  
Yasuaki Einaga
Keyword(s):  
Oxalic Acid ◽  
Gold Nanoparticle ◽  
Electrochemical Oxidation ◽  
Diamond Electrodes ◽  
Boron Doped Diamond ◽  
Boron Doped
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