Abstract
Exposure to the neutral activated species of an a.c. point-to-plane type corona discharge in air of aqueous alkaline solutions of phenol and substituted phenols (pentachlorophenol, triiodo 2,4,6 phenol and picric acid) leads to the oxidative destruction of the solutes up to the CO2 state in the case of phenol. The influence of the discharge parameters, such as the current intensity, is considered. The destruction of phenates follows overall pseudo first-order kinetics, and the kinetic constants are linearly dependent on the current. A scheme for the degradation kinetics is proposed involving a multistep mechanism, and the occurrence of dihydroxybenzenes as reaction intermediates is suggested. Applications of corona treatment to waste waters may be considered as a versatile method for the elimination of toxic chemicals and the purification of industrial waters.
Similar content being viewed by others
References
J. Ganter, Information Chimie 160 (1976) 177–84.
J.-L. Brisset, A. Doubla, J. Lelièvre and J. Amouroux, Analusis 18 (1990) 185–91.
J.-L. Brisset, N. Dubreuil and J. Lelièvre, J. Phys III Fr. 5 (1995) 447–57.
R. S. Sigmond, `Electric Breakdown of Gases' (edited by Meek and Craggs) Wiley, London (1978) chapter 4.
M. Goldman and A. Goldman, `Gaseous Electronics' vol.1 (edited by M.N. Hirsh and H.J. Oskam) Academic Press, London (1978) chapter 4.
M. Goldman, A. Goldman and R.S. Sigmond, Pure & Appl. Chem 57 (1985) 1353–62.
H. V. Boenig, `Fundamentals of Plasma Chemistry and Technology' (1988).
J. S. Chang, P. A. Lawless and T. Yamamoto, IEEE Trans. Plasma Sci. 19 (1991) 1152–66.
R. Peyrous, Proceedings of the 7th International Conference on Gas Discharge and their Applications, (London, 1982) pp. 173–6.
R. Peyrous, Proceedings of the 8th International Conference on Gas Discharge and their Applications, (Oxford, 1985) pp. 489–92.
B. Eliasson, U. Kogelschatz and P. Baessler, Proc. ISPC-4 (Zurich, Switzerland, 1979) pp. 729–34.
C. A. M. De Vries, F. J. de Hoog and D. C. Schramm Proc. ISPC-6 (Montréal, Canada, 1983) pp. 317–21.
J. Skalny, Proceedings of the Symposium on the Physics of Ionized Gases, (Sibenic, Yugoslavia, 1986) pp. 431–34.
R. Peyrous, P. Pignolet and B. Held, Proceedings of the 18th ICPIG, (Swansea, UK, 1987) pp. 658–59.
R. Peyrous, B. Held and P. Pignolet, Proc Electr. Disch. 87 (Tokyo, Japan, 1987) 95–109.
W. A. Waters, `The Chemistry of Free Radicals' Clarendon Press, Oxford, 2nd edn. (1948) p. 251.
H. H. Perkampus, UV-Vis Atlas of Organic Compounds, 5th edn VCH Weinheim (1992).
C. N. R. Rao, `Ultra-Violet and Visible Spectroscopy', 2nd edn, Plenum Press, New York (1967).
F. Scheinman, `An Introduction to Spectroscopic Methods for the Identification of Organic Compounds', Pergamon Press, Oxford(1974).
E. J. Land and M. Ebert, Trans Faraday Soc. 63 (1967) 1181–90.
C. Pétrier, M. Micolle, G. Merlin, J.-L. Luche and G. Reverdy, Environ. Sci. Technol. 26 (1992) 1639–42.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
BRISSET , J. Air corona removal of phenols. Journal of Applied Electrochemistry 27, 179–183 (1997). https://doi.org/10.1023/A:1018451907358
Published:
Issue Date:
DOI: https://doi.org/10.1023/A:1018451907358