Evaluation of the operating parameters of a laboratory-scale electrocoagulation cell in the elimination of the azo dye Red 40 in aqueous solution using aluminum electrodes
Published 2024-11-25
Keywords
- Aluminum,
- Azo dye,
- Concentration,
- Electrolyte concentration,
- Energy consumption
- Efficiency,
- Electrode,
- Operating parameters,
- Water treatment,
- Electrochemical treatment,
- Voltage ...More
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Copyright (c) 2024 Revista UIS Ingenierías
This work is licensed under a Creative Commons Attribution-NoDerivatives 4.0 International License.
Abstract
The objective of the present study was to analyze the removal efficiency of red dye 40 by electrocoagulation process using aluminum electrodes. The methodology used includes a first stage taking into account the operating parameters of the electrolyte concentration (0-0.5 g/L NaCl), pH of the solution (4.5-9.1), number of electrodes (2-4), distance between electrodes (1-2 cm), with the best results of this stage, a multilevel factorial experimental design with two variables was performed: (10, 15 and 20) V voltages and electrocoagulation duration of (3, 6, 10, 20, 40 and 60) min. The results show the main role of several parameters to maximize the removal efficiency and minimize the energy consumption. According to the experimental results, the maximum removal efficiency obtained is 85.29 % with an energy consumption of 14.08 kJ.
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