التفاصيل البيبلوغرافية
| العنوان: |
Decolorization and Degradation of a Mixture of Industrial Azo Dyes by Anodic Oxidation Using a Ti/Ru0.3Ti0.7O2 (DSA‐Cl2) Electrode. |
| المؤلفون: |
Sandoval, Miguel A., Zúñiga‐Mallea, Nury, Espinoza, L. Carolina, Vidal, Jorge, Jara‐Ulloa, Paola, Salazar, Ricardo |
| المصدر: |
ChemistrySelect; 12/19/2019, Vol. 4 Issue 47, p13856-13866, 11p |
| مصطلحات موضوعية: |
ANODIC oxidation of metals, AZO dyes, HIGH performance liquid chromatography, CHEMICAL oxygen demand, ELECTRODES, ENERGY consumption, ELECTROLYTIC oxidation |
| مستخلص: |
The electrochemical treatment of wastewaters from the textile industry is a promising alternative for the elimination of organic pollutants. This study approach the decolorization and chemical oxygen demand (COD) removal from synthetic water (0.91 mM Acid Yellow 25 dye ‐ and ‐ 0.42 mM Acid Blue 29 dye), by anodic oxidation (AO) in batch mode using a Ti/Ru0.3Ti0.7O2 (DSA‐Cl2) electrode as anode and an AISI 304 stainless steel plate as cathode. The influence of pH (3, 7 and 10), type of supporting electrolyte (50 mM Na2SO4, 50 mM NaCl and 100 mM NaCl) and applied current density (10 < j < 80 mA cm–2) on COD removal and mineralization current efficiency was analyzed. The best AO test in terms of energy consumption was performed at pH 7, 50 mM NaCl and j=30 mA cm–2, obtaining a complete decolorization and COD removal. These operating parameters have an energy consumption between 0.41 and 0.82 kWh m–3. High performance liquid chromatography (HPLC‐MS/MS) analyses indicated the presence of several organic intermediates and carboxylic acids. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
