Wastewater Decontamination from Microorganisms by Electrospraying Corona Discharge

DOI: 10.4236/jmp.2013.412203   PDF   HTML   XML   4,253 Downloads   5,948 Views   Citations


A novel water treatment technique, based on a combination of electrospraying and pulsed corona discharge, has been used for bio-decontamination of wastewater. The electrospraying process has been found to increase the surface area of the treated wastewater, and hence increases the efficiency of the corona treatment process. The phase diagram of the discharge, which characterizes the discharge regimes, has been identified experimentally. The survival ratio of the microorganisms has been investigated experimentally as a function of the applied voltage and the numbers of treatment runs using air and oxygen as working gases. Microorganism surface has been examined using scanning electron microscope (SEM), which enabled in understanding the decontamination mechanisms of the treated microorganism. A complete decontamination has been achieved after only one run for an applied voltage higher than 16 kV when the discharge system was operated in oxygen gas. Optical emission spectrum of the electrosprayed water confirmed the existence of OH-radicals responsible for decontamination process.

Share and Cite:

M. Elsawah, M. Ali, S. Hassaballah, N. Morgan, A. Samir, F. Elakshar and A. Garamoon, "Wastewater Decontamination from Microorganisms by Electrospraying Corona Discharge," Journal of Modern Physics, Vol. 4 No. 12, 2013, pp. 1632-1637. doi: 10.4236/jmp.2013.412203.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] R. Droste, “Theory and Practice of Water and Wastewater Treatment,” John Wiley and Sons, New York, 1996.
[2] C. Christos, A. Kapalka, S. Malato, S. A. Parsons, I. Poulios and D. Mantzavinos, Journal of Chemical Technology and Biotechnology, Vol. 183, 2008, pp.769-776.
[3] E. Mohammed, H. H. Abdel Ghafar, N. Morgan, S. Hassaballa, A. Samir, F. Elakshar and A. A. Garamoon, IEEE Transactions on Plasma Science, Vol. 40, 2012, pp. 29-34. http://dx.doi.org/10.1109/TPS.2011.2171373
[4] J. B. Fenn, M. Mann, C. K. Meng, S. F. Wong and C. M. Whitehouse, Science, Vol. 246, 2007, pp. 64-71.
[5] G. Taylor, Proceedings of the Royal Society A, Vol. 280, 1964, p. 383. http://dx.doi.org/10.1098/rspa.1964.0151
[6] G. Taylor, Proceedings of the Royal Society of London A: Mathematical Physical & Engineering Sciences, Vol. 313, 1969, pp. 453-475.
[7] J. Borra, P. Ehouarn and D. Boulaud, Journal of Aerosol Science, Vol. 35, 2004, pp. 1313-1332.
[8] J. M. López-Herrera, A. Barrero, A. Boucard, I. G. Loscertales and M. Márquez, Journal of the American Society for Mass Spectrometry, Vol. 15, 2004, pp. 253-259.
[9] B. Sun, M. Sato and J. S. Clements, Journal of Physics D: Applied Physics, Vol. 32, 1999, pp. 1908-1915.
[10] E. Nasser, “Fundamentals of Gaseous Ionization and Plasma Electronics,” Wiley-Interscience, New York, 1971.
[11] A. Von Engel, “Ionized Gases,” Oxford, 1965.
[12] L. Loeb, “Electrical Coronas: Their Basic Physical Mechanisms,” University of California, Press Berkeley, 1965.
[13] T. Sugiarto, S. Ito, T. Ohshima, M. Sato and J. D. Skalny, Journal of Electrostatics, Vol. 58, 2003, pp. 135-145.
[14] A. Joshi, B. R. Locke, P. Arce and W. C. Finney, Journal of Hazardous Materials, Vol. 41, 1995, pp. 3-30.
[15] B. Sun, M. Sato and J. S. Clements, Environmental Science & Technology, Vol. 34, 2000, pp. 509-513.
[16] A. Garamoon, F. Elakshar, A. Nossair and E. Kotp, Plasma Sources Science and Technology, Vol. 11, 2002, pp. 254-259. http://dx.doi.org/10.1088/0963-0252/11/3/305
[17] Z. Machala, M. Janda, K. Hensel, I. Jedlovsky, L. Lestinska, V. Foltin, V. Martisovits and M. Morvova, Journal of Molecular Spectroscopy, Vol. 243, 2007, pp. 194-201.
[18] X. Lu, Z. Xiong, F. Zhao, Y. Xian, Q. Xiong, W. Gong, C. Zou, Z. Jiang and Y. Pan, Applied Physics Letters, Vol. 95, 2009, Article ID: 181501.

comments powered by Disqus

Copyright © 2020 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.