Investigation of Fuchsine Solution Degradation by DC Atmospheric Pressure Air Discharge Plasma

Abstract:

In this study, results of degradation of fuchsine solution are presented by using direct current (DC) atmospheric pressure air discharge plasma. The maximum absorption at 542 nm was reduced from 10.376 to 0.062 after 15 minutes plasma treatment, corresponding to the reduction of fuchsine solution concentration from 100 mg/L down to 1.419 mg/L, which indicated that the degradation efficiency is as high as 98.51%. A notable decreasing of degradation efficiency caused from the adding of sodium carbonate suggests that free radical species is a main factor accounting for the fuchsine solution degradation. The experimental results also reveal that the solution conductivity was increased with treatment time, while the solution PH was decreased, which may show that large amount of inorganic species, such as NO₃^- and H⁺, were produced. Within the current paper, it can be concluded that the DC atmospheric pressure air discharge plasma is capable of an efficient technology for the degradation of dye wastewater.

• Periodical: Applied Mechanics and Materials (Volumes 71-78)
• Pages: 2856-2859
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.71-78.2856
• Online since: July 2011
• Authors: Shui Jiao Yang, Ai Hua Gao, Feng Qiu Wang
• Keywords: Dc Discharge Plasma, Degradation Efficiency, Fuchsine Solution

References

[1] M. H. Yuan, Narengerile, DC Water Plasma at Atmospheric Pressure for the Treatment of Aqueous Phenol, Environ. Sci. Technol. 44 (2010) 4710.

DOI: 10.1021/es9038598

[2] C. K. Gao, The status of water resource and interrelated countermeasures for developing　&　protecting in China, Water Treatment Technology Symposium Proceedings. (1999).

[3] B. Sun, M. Sato, Oxidative Processes Occurring When Pulsed High Voltage Discharges Degrade Phenol in Aqueous Solution, Environ. Sci. Technol. 34 (2000) 509-513.

DOI: 10.1021/es990024+

[4] S. Schmid, M. C. Jecklin, R. Zenobi, Degradation of volatile organic compounds in a non-thermal plasma air purifier, Chemosphere. 79 (2010) 124.

DOI: 10.1016/j.chemosphere.2010.01.049

[5] Y. J. Liu, D. G. Wang, B. Sun B, Aqueous 4-nitrophenol decomposition and hydrogen peroxide formation induced by contact glow discharge electrolysis, Journal of Hazardous Materials, 18 (2010) 1011.

DOI: 10.1016/j.jhazmat.2010.05.115

[6] Q. Tang, S. Lin, W. J. Jiang, Gas phase dielectric barrier discharge induced reactive species degradation of 2, 4-dinitrophenol, Chemical Engineering Journal. 153 (2009) 94-100.

DOI: 10.1016/j.cej.2009.06.022

[7] M. A. Malik, Water Purification by Plasmas: Which Reactors are Most Energy Efficient?, Plasma Chem Plasma Process. 30 (2010) 21-31.

DOI: 10.1007/s11090-009-9202-2

[8] F. M. Huang, L. Chen. H. L. Wang, Analysis of the degradation mechanism of methylene blue by atmospheric pressure dielectric barriar dischage plasma, Chemical Engineering Journal. 162 (2010) 254.

DOI: 10.1016/j.cej.2010.05.041