Alternating pulse current in electrocoagulation for wastewater treatment to prevent the passivation of al electrode

Xuhui Mao; Song Hong; Hua Zhu; Hui Lin; Lin Wei; Fuxing Gan

doi:10.1007/s11595-006-2239-7

Journal of Wuhan University of Technology Materials Science Edition ›› 2008, Vol. 23 ›› Issue (2) : 239 -241. DOI: 10.1007/s11595-006-2239-7

Article

Alternating pulse current in electrocoagulation for wastewater treatment to prevent the passivation of al electrode

Xuhui Mao ¹
, Song Hong ¹^,^{^{^b}}
, Hua Zhu ¹
, Hui Lin ¹
, Lin Wei ¹
, Fuxing Gan ¹^,²

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Abstract

A novel current feed style, alternating pulse current, was proposed in electrocoagulation aiming at preventing the passivation of electrode materials. The open circuit potential (OCP) measurements after anodic and cathodic potentiodynamic polarization showed that cathodic polarization could activate Al electrode. The surface of Al electrode after alternating pulse current electrocoagulation was investigated by scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS), and the results indicate that passivation of Al is not observed. Furthermore, the simulated wastewater treatment tests show that alternating pulse current electrocoagulation has a visible energy saving effect and is worthy of generalization.

Keywords

alternating pulse current / electrocoagulation / passivation of Al

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Xuhui Mao, Song Hong, Hua Zhu, Hui Lin, Lin Wei, Fuxing Gan. Alternating pulse current in electrocoagulation for wastewater treatment to prevent the passivation of al electrode. Journal of Wuhan University of Technology Materials Science Edition, 2008, 23(2): 239-241 DOI:10.1007/s11595-006-2239-7

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References

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[1]	Chen G., Chen X., Yue P. L. Electrocoagulation and Electroflotation of Restaurant Wastewater[J]. Journal of Environmental Engineering-ASCE, 2000, 126(9): 858-863.

[2]	Biswas N., Lazarescu G. Removal of Oil from Emulsions Using Electrocoagulation[J]. International Journal of Environmental Studies, 1991, 38: 65-75.

[3]	Chen X., Chen G., Yue P. L. Novel Electrode System for the Electroflatation of Wastewater[J]. Environ. Sci. Technol., 2002, 36: 778-783.

[4]	Nasr B., Abdellatif G., Canizares P. Electrochemical Oxidation of Hydroquinone, Resorcinol, and Catechol on Boron-doped Diamond Anodes[J]. Environ. Sci. Technol., 2005, 39: 7 234-7 239.

[5]	Wu Z., Zhou M. Partial Degradation of Phenol by Advanced Electrochemical Oxidation Process[J]. Environ. Sci. Technol., 2001, 35: 2 698-2 703.

[6]	Daneshvar N., Ashassi Sorkhabi H., Kasiri M. B. Decolorization of Dye Solution Containing Acid Red 14 by Electrocoagulation with a Comparative Investigation of Different Electrode Connections[J]. Journal of Hazardous Materials B, 2004, 112: 55-62.

[7]	Chen X., Chen G., Yue P. L. Separation of Pollutants from Restaurant Wastewater by Electrocoagulation[J]. Separation and Purification Technology, 2000, 19: 65-76.

[8]	Ge J., Qu J., Lei P. New Bipolar Electrocoagulation-electroflatation Process for the Treatment of Laundry Wastewater[J]. Separation and Purification Technology, 2004, 36: 33-39.

[9]	Yousuf M., Mollah A., Schennach R. Electrocoagulation (EC)-science and Applications[J]. Journal of Hazardous Materials B, 2001, 84: 29-41.

[10]	Chen X. Analysis of Electrocoagulation Energy Consumption and Measures of Energy Saving[J]. Industrial Water Treatment, 1997, 23(3): 165-168.

[11]	Sun W. XPS Studies of the ZnS_1-xTe_x Ternary Alloy Films[J]. Vacuum Science and Technology, 1999, 19(2): 75-80.

[12]	Fen L., Limei Q., Liangzhong Z. Research for Quantitative Imaging X-ray Photoelectron Spectrometric Analysis[J]. Chinese Journal of Analytical Chemistry, 2003, 31(9): l 082-l 084.