The Study on the Electrocatalytic Treatment of Dye Wastewater by ACF Cathode

Abstract:

By using ACF as the cathode, acid scarlet 3R as simulated wastewater, the experiment researches into the effect of current density, aeration, electrolyte concentration and the initial pH value on the color removal of wastewater. The results showed that: ACF cathode has a strong adsorption capacity. Oxygen is reduced to H2O2 and other oxidizing substances H2O2 on the cathode surface .Therefore, it has a strong degradation capacity to dye, which is far better than that of the stainless steel cathode; Lower operating current density helps reduce processing costs; Higher electrolyte concentration and aeration is not necessarily better, which follows certain rules; The treatment is effected greatly by the initial pH, and the effect of decolonization in the acidic conditions is better than that in alkaline conditions. When the current density is 6Am/cm², electrolyte concentration is 0.04mol•L-1, aeration capacity is 0.2m3/h, initial pH is 3.5 and the time of treatment is 70min, the decolonization rate of wastewater is 95.30 %.

• Periodical: Advanced Materials Research (Volumes 356-360)
• Pages: 1386-1390
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.356-360.1386
• Online since: October 2011
• Authors: Jun Sheng Hu, Yue Li, Hui Wang
• Keywords: ACF Cathode, Dye Wastewater, Electrochemical Oxidation, Treatment

References

[1] Yanwei Zhou, Li Fan, Weishen Yang, et al: Journal of Chemical Engineering of Chinese Universities, Vol.20(2),p.264,In Chinese.

[2] Linsheng Zhang, Lanlan Jiang, Luning Xiao: Journal of Southeast Univwrsity(Natural Science Edition), Vol.31(1),p.100,In Chinese.

[3] Kaiying Shi, Zhongwei Guo: Journal of Baoding Teachers College,Vol.19(2),p.53,In Chinese.

[4] Jianting Mei, Jianchu Zhong: Dyestuff Industry, Vol.39(6):p.40,In Chinese.

[5] MingYu Li, Xiong Lin, Yunyun Chen, et al: Science in China Ser. B Chemistry, Vol.35(2),p.144,In Chinese.

[6] Hui Wang, XiuJuan Yu, Dezhi Sun: Environmental Protection Science,Vol.32(2),p.4,In Chinese.

[7] Wu CHEN, Fan xiu LI, Ping MEI: Environmental Science and Technology, Vol.25(l),p.11,In Chinese.

[8] Xiujuan Yu, Hui Wang, Dezhi Sun, et al: Journal of Harbin Institute of Technology, Vol.39(2),p.262,In Chinese.

[9] Comninellis C, Nerini A: Journal of Applied Electrochemistry, Vol.25(1),p.23.

[10] Quiroz M A, Reyna S: Applied Catalysis B: Environmental, Vol.59(3-4),p.259.