Advertisement

Plasma Chemistry and Plasma Processing

, Volume 19, Issue 3, pp 327–340 | Cite as

The Treatment of Water-Based Toxic Waste Using Induction Plasma Technology

  • V. Yargeau
  • G. Soucy
  • M. I. Boulos
Article

Abstract

A study of the treatment of liquid wastes in a radio frequency (rf) induction plasma reactor is reported. Ethylene glycol was used as a surrogate for the waste because of safety considerations. Thermodynamic analyses demonstrated complete and safe decomposition at the conditions studied. The solution was injected axially into the center of an argon–oxygen plasma operated at a plate power of 50 kW to study blast atomization and operating conditions. A factorial analysis revealed, at a confidence level of 0.99, that both reduction of pressure and liquid flow rate increase the destruction and removal efficiency (DRE) and that a higher plate power increased DRE. The study also revealed that poor atomization was responsible for the reduction of the DRE by 10–15% (to 80–85%) and that 94% of the exothermic energy of the reaction was available for further use. The specific energy requirement (SER) of the process was estimated at 8.33 kWh/kg of solute. This value can be expected to drop significantly with scale-up of the process.

Thermal plasmas induction plasma reactor toxic wastes energy distribution mass balance energy balance 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

REFERENCES

  1. 1.
    R. W. Smith, R. Mutharasan, R. Knight, K. Malladi, J. Serino, J. Vavruska, J. Persoon, and M. Garrison, Proc. 12th Intern. Symp. Plasma Chem. (1995), p. 1057.Google Scholar
  2. 2.
    G. Soucy, É. Bergeron, and M. I. Boulos, J. High Temp. Mater. Proc. 2, 195 (1998).Google Scholar
  3. 3.
    J. Szépvölgyi, T. B., Mihály, K. Sándor, and M. Ilona, Proc. 12th Intern. Symp. Plasma Chem. (1995), p. 1165.Google Scholar
  4. 4.
    K. Mizuno, T. Wakabayashi, Y. Koinuma, R. Aizawa, S. Kushiyama, S. Kabayashi, H. Ohuchi, T. Yoshida, Y. Kubota, T. Amano, H. Komaki, and S. Hirakawa, U.S. Patent 5,026,464, June 25, 1991.Google Scholar
  5. 5.
    S. Takeuchi, K. Takeda, N. Uematsu, H. Komaki, K. Mizuno, and T. Yoshida, Proc. 12th Intern. Symp. Plasma Chem. (1995), p. 1021.Google Scholar
  6. 6.
    G. Lantagne, B. Marcos, and B. Cayrol, Comp. Chem. Eng. 12, 589 (1988).Google Scholar
  7. 7.
    JANAF Thermodynamic Tables, 3rd edn., Vol. 14, New York (1985).Google Scholar
  8. 8.
    P. Atri, M. Frenkel, N. M. Gadalla, N. N. Marsh, and R. C. Wilhoit, TRC Thermodynamic Tables, Vols. 1–8, Thermodynamics Research Center, Texas (1985).Google Scholar
  9. 9.
    R. E. Duff and S. H. Bauer, J. Chem. Phys. 36, 1754 (1962).Google Scholar
  10. 10.
    Y. Chang and E. Pfender, Plasma Chem. Plasma Proc. 7, 275 (1987).Google Scholar
  11. 11.
    J. A. M. Smith and H. C. Van Ness, Introduction to Chemical Engineering Thermodynamics, 4th edn., McGraw-Hill, New York (1987), p. 106.Google Scholar

Copyright information

© Plenum Publishing Corporation 1999

Authors and Affiliations

  • V. Yargeau
    • 1
  • G. Soucy
    • 1
  • M. I. Boulos
    • 1
  1. 1.Plasma Technology Research Centre, Chemical Engineering DepartmentUniversité de SherbrookeSherbrookeCanada

Personalised recommendations