Studying the Phenol Degradation in Synthetic Wastewater by Catalytic Wet Air Oxidation Process in Batch Reactor


  • Ghayda Yaseen AL Kindi
  • Faris Hammoodi AL Ani
  • . .





Batch reactor, catalyst wet air oxidation. Kinetic, packed bed reactor, phenol.


The current paper studies the viability of using a Batch reactor, by five types of Al-Fe pillared clay that prepared from five regions in Iraq for phenol degradation in synthetic wastewater. The operation condition study through variables in (pH, pressure, temperature, pillared load, phenol load). The findings have illustrated that phenol degradation could be increase via incrementing temperature, pressure, pillared load and degrease in phenol load. Phenol good degradation proportion which was 97 %, has been achieved at optimum proportion (pH= 3.9, temperature = 150 °C, pressure = 3.5 MPa, in addition to phenol concentration = 500 mg/l). The two models power-law and Langmuir−Hinshelwood have been used   to study the catalytic kinetics of the phenol degradation. From results shown the activation energy for every response equivalent to (37114.014 j/mol) for Anbar (37795, 48783.9, 36628, 40785 j/mol) for Erbil, Mosul, Baghdad and Basra respectively. It was proved that the reaction in this study is under kinetics control.




[1] Matatov-Meytal, Y.I. and Sheintuch, M. (1998). 'Catalytic abatement of water pollutants', Ind. Eng. Chem. Res., 37, 309-326.

[2] Luck, F. Catal. Today, 1996, 27, (1–2), 195 LINKdoi:10.1016/0920-5861(95)00187-5

[3] Kuo-Hua Wang et al. 1999. Photocatalytic degradation of 2nitrophenol by titanium dioxide suspensions in aqueous solution. Applied Catalysis B Environmental. 21: 1- 8.

[4] Eftaxias Athanasios (2002)" Catalytic Wet Air Oxidation of Phenol in a Trickle Bed Reactor:Kinetics and Reactor Modelling" Doctor in Chemical Engineering of the Rovira i Virgili University

[5] Rob. J. Berger, E. Hugh Stitt*, Guy B. Marin, Freek Kapteijn, Jacob A. Moulijn, (2001)" Chemical reaction kinetics in practice"EUOKEN Volume 5, no. 1, USA

[6] Bos A. N. R., Lefferts L., Marin G. B. and Steijns M. H. G. M., (1997) Kinetic research on Heterogeneously Catalyzed Processes: A Questionnaire on the State-of-the–art in Industry. Appl. Catal. A: General, 160, 185.

[7] Al-Dahhan, M., Guo, J., (2005)" Catalytic Wet Air Oxidation of Phenol in Concurrent Downflow and Upflow Packed-Bed Reactors over Pillared Clay Catalyst." PhD .thesis –school of chemical Engineering, university of Washington.

[8] Eftaxias, A., Font, J., Fortuny, A., Fabregat, A. and Stuber, F., "Kinetics of phenol oxidation in a trickle bed reactor over active carbon catalys", Journal of Chemical Technology and Biotechnology, 80, 677-687, 2005.

[9] Luma Shihab Ahmed (2012)" Hydrodynamics and Kinetics Study of Phenol Removal Treatment in wastewater in aTrickle Bed Reactor"A Thesis Submitted to the Department of Chemical Engineering of the University of Technology

[10] Mirzaeia, A.A. *, M. Arsalanfara, F. Ebrahimzadeha, H. Atashib and S.H. Mirhoseini Moghaddamc (2013)" Kinetic Study of Fischer Tropsch Synthesis over co Precipitated Iron-Cerium Catalyst Phys. Chem. Res., Vol. 1, No. 1, 69-80, June 2013 www.physchemres.orginfo@physchemres.orgIran.

[11] Ghaidaa, AL-Rawi.., (2015)" Performance Enhancement in Unsteady State Operated Trickle bed Reactor of Organic Compound" Master Thesis University of Technology.

[12] Lamyaa, Adnan, Abdulridha, 2015 "Expermental Study and Simulation of Advanced Oxidation Process for Wastewater Treatment" M.Sc. Thesis in Chemical Engineering Iraq

[13] Santos,A. P. Yustos, A. Quintanilla, F. Garcia-Ochoa, J. A. Casas, J. J. Rodriguez, Environ. Sci.Technol. 38 (2004) 133-138.

[14] Wu, Q., Hu ,X., and Yue, P., "Kinetics study on catalytic wet air oxidation of phenol", Chem.Eng.Sci, 58, 923-928, 2003.

[15] Barrault J., Abdellaoui M., Bouchoule C., Majeste A., Tatibouet J. M., Louloubi A., Papayannakos N. and Gangos N.H,: Catalytic wet peroxide oxidation over Mixed (AL-Fe) pillared clays. APPL.catal. B., Environmental, 2000, 27, 225.

[16] bankovic, P., A. Milutionovic., Nikolic, A. Rosic., N. Jovic – Jovicic , and , Jovanovic: structural and Textural properties of AL-Fe –pillared clay catalysts, Journal of physical chemistry, 2009, vol 83 No. 9 PP 1485-1489.

[17] Pintar, A. and Levec, J., Catalytic liquid-phase oxidation of phenol aqueous-solutions - a kinetic investigation, Ind. & Eng. Chem. Res., 33(12), p. 3070 (1994).

[18] Arora, N., and Biegler, L. T., Redescending estimators for data reconciliation and parameter estimation, Computers and Chemical Engineering, 25, 1585 (2001).

[19] Fortuny, A. C. Bengoa, J. Font, A. Fabregat, J. Hazard. Mater. 64 (1999)181).

[20] Eftaxias, A., Font, J., Fortuny, A.,Giralt,J., Fabregat, A. and Stuber, F., 2001"Kinetic modeling of catalytic wet air oxidation of phenol by simulated annealing", Applied catalysis B:Environmental, 33, 175-190,.

[21] Eftaxias A., Font J., Fortuny A., Fabregat A. (2005 (“Kinetics of phenol oxidation in a trickle bed reactor over active carbon catalystâ€. J. Chem. Technol. Biotechnol. Vol., 80, 677-687.

[22] Raweewan Klaewkla, Matthias Arend and Wolfgang F. Hoelderich (2011). A Review of Mass Transfer Controlling the Reaction Rate in Heterogeneous Catalytic Systems, Mass Transfer - Advanced Aspects, Dr. Hironori Nakajima (Ed.), ISBN: 978-953-307-636-2, InTech, Available from:

[23] Press H. W., Teukolsly S. A., Vetterling W. T. and Flannery B. P. (1992) Numerical Recipes, the Art of Scientific Computing, Cambridge University Press: Cambridge,U.K

[24] Duggleby R. G., (1984) Regression Analysis of Nonlinear Arrhenius Plots: An EmpiricalModel and a Computer Program. Comput. Biol. Med., 14, 447.

[25] Oleta Platon1*, Ana-Maria Rosu1, Vasilica Alisa Aru1, Denisa Ileana Nistor1, Ilie Siminiceanu2 (2013) "Chemically Modified Clays used for Environmental quality" journal of engineering studies and research – volume 19 no. 4, pp. 52-58.

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How to Cite

Yaseen AL Kindi, G., Hammoodi AL Ani, F., & ., . (2018). Studying the Phenol Degradation in Synthetic Wastewater by Catalytic Wet Air Oxidation Process in Batch Reactor. International Journal of Engineering & Technology, 7(4.20), 594–601.
Received 2019-02-12
Accepted 2019-02-12
Published 2018-11-28