Electrochemical Removal of Chromium (VI) from Wastewater
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Experimental Procedure
2.3. Kinetics Model
3. Results and Discussions
3.1. Electro-Reduction of Chromium (VI)
3.1.1. Reaction Mechanism
3.1.2. Effect of Concentration of H2SO4
3.1.3. Effect of Reaction Temperature
3.1.4. Effect of Current Intensity
3.2. Kinetic Model
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Kobs | R2 | |
---|---|---|
[H2SO4] | ||
100 g/L | 0.01276 | 0.9985 |
80 g/L | 0.01077 | 0.9993 |
60 g/L | 0.00712 | 0.9978 |
40 g/L | 0.00712 | 0.9849 |
20 g/L | 0.00608 | 0.9964 |
Current density | ||
50 A/m2 | 0.01276 | 0.9985 |
40 A/m2 | 0.01163 | 0.9987 |
30 A/m2 | 0.01312 | 0.9975 |
20 A/m2 | 0.01249 | 0.9836 |
10 A/m2 | 0.01191 | 0.9946 |
Reaction temperature | ||
70 °C | 0.01276 | 0.9985 |
60 °C | 0.01242 | 0.9980 |
50 °C | 0.01238 | 0.9983 |
40 °C | 0.01115 | 0.9967 |
30 °C | 0.01027 | 0.0017 |
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Peng, H.; Leng, Y.; Guo, J. Electrochemical Removal of Chromium (VI) from Wastewater. Appl. Sci. 2019, 9, 1156. https://doi.org/10.3390/app9061156
Peng H, Leng Y, Guo J. Electrochemical Removal of Chromium (VI) from Wastewater. Applied Sciences. 2019; 9(6):1156. https://doi.org/10.3390/app9061156
Chicago/Turabian StylePeng, Hao, Yumeng Leng, and Jing Guo. 2019. "Electrochemical Removal of Chromium (VI) from Wastewater" Applied Sciences 9, no. 6: 1156. https://doi.org/10.3390/app9061156