CATALYTIC WET AIR OXIDATION OF PHENOL USING METAL MODIFIED ZEOLITIC VOLCANIC TUFFS
Keywords:
zeolite, phenol, catalytic wet air oxidation, chemical oxygen demandAbstract
zeolitic volcanic tuff modified with metals (Cu, Ce, Co, Ni, Zn, Mn and Fe) by ionic exchange was tested as catalyst in wet air oxidation process for phenol removal from aqueous solutions. The influence of temperature, air flow, catalyst quantity, phenol concentration, reaction time and catalyst grain size were considered. Also, the reaction was tested in two reactor types: batch and fixed bed. In the case of the batch reactor maximum value for the process efficiency, about 34%, was reached in the following conditions: 60°C, 60 L/h, 4 g catalyst, 1000 mg/L and 6 h reaction time. In the case of the fixed bed reactor higher efficiencies were obtained, in the same reaction conditions.
References
Md. Ahmaruzzaman, Advances in Colloid and Interface Science, 2008, 143, 48.
D.S. Coombs, A. Alberti, T. Armbruster, G. Artioli, C. Colella, E. Galli, J.D. Grice, F. Liebau, J.A. Mandarino, H. Minato, E.H. Nickel, E. Passaglia, D.R. Peacor, S. Quartieri, R. Rinaldi, M. Ross, R.A. Sheppard, E. Tillmanns, G. Vezzalini, Canadian Mineralogist, 1997, 35, 1571.
A. Măicăneanu, H. Bedelean, M. Stanca, "Zeoliţii naturali. Caracterizare şi aplicaţii în protecţia mediului", Cluj University Press, Cluj-Napoca, 2008, chapter 1.
G. Cerri, A. Langella, M. Pansini, P. Cappelletti, Clays and Clay Minerals, 2002, 50, 127.
G. Busca, S. Berardinelli, C. Resini, L. Arrighi, Journal of Hazardous Materials, 2008, 160, 265.
K. Maduna, A. Katovic, S. Zrncevic, Journal of Hazardous Materials, 2007, 144, 663.
Y. Yan, S. Jiang, H. Zhang, X. Zhang, Chemical Engineering Journal, 2015, 259, 243.
M. Dϋkkanci, G. Gϋndϋz, S. Yilmaz, Y.C. Yaman, R.V. Prokhod`ko, I.V. Stolyarova, Applied Catalysis B: Environmental, 2010, 95, 270.
A. Măicăneanu, M. Stanca, S. Burca, H. Bedelean, Studia UBB Chemia, 2008, 53 (3), 7.
M.A. Barron, L. Haber, A. Maier, J. Zhao, M. Burron, 2002, EPA/635/R-02/006.
Ordin nr. 161 din 16/02/2006 pentru aprobarea Normativului privind clasificarea calităţii apelor de suprafaţăîn vederea stabilirii stării ecologice a corpurilor de apă.
A. Măicăneanu, H. Bedelean, S. Burcă, M. Stanca, Separation Science and Technology, 2011, 46, 1621.
K.D. Mondale, R.M. Carland, F.F. Aplan, Mineral Engineering, 1995, 8, 535.
M. Panayotova, B. Velikov, Journal of Environmental Science and Health, 2003, A38, 545.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2015 Studia Universitatis Babeș-Bolyai Chemia
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
