Kinetic Model of pH effect on Bioremediation of Crude Petroleum Contaminated Soil. 1. Model Development
American Journal of Chemical Engineering
Volume 1, Issue 1, May 2013, Pages: 6-10
Received: May 17, 2013; Published: Jun. 10, 2013
Views 2716      Downloads 192
Authors
G. A. O. Ajoku, Department of Chemical Engineering, University of Port Harcourt, Port Harcourt
M. K. Oduola, Department of Chemical Engineering, University of Port Harcourt, Port Harcourt
Article Tools
PDF
Follow on us
Abstract
Successful design and operation of a bioremediation process for soil contaminated with crude petroleum requires an in-depth understanding of the type of microorganisms involved, the specific reaction they perform, the factors that affect their performance, and their bioremediation kinetics. This paper attempts to develop the kinetic model for the pH being one of the major environmental factors that influence the bioavailability of contaminants, the availability of other nutrients, the activity of biological processes and hence the overall bioremediation kinetics of crude-petroleum contaminated soil. The pH model have been developed at the chemical and mathematical level with the basic assumptions that i) all side chains necessary for catalysis are in the correct protonation state; ii) an enzyme can exist in three degrees of protonation; iii) only one form of the enzyme is capable of binding substrate and catalyzing the reaction; and iv) the substrate is in great enough excess such that the equilibrium constant for the protonation of the free enzyme is the same as for the enzyme-substrate complex. The resulting model equations enable to obtain values of the equilibrium constants (K1 and K2) which are significant in determination of the optimal pH for bioremediation reaction rate.
Keywords
Bioremediation, Crude-Petroleum, Kinetic Model, pH
To cite this article
G. A. O. Ajoku, M. K. Oduola, Kinetic Model of pH effect on Bioremediation of Crude Petroleum Contaminated Soil. 1. Model Development, American Journal of Chemical Engineering. Vol. 1, No. 1, 2013, pp. 6-10. doi: 10.11648/j.ajche.20130101.12
References
[1]
FX Merlin et al., Bioremediation: results of the field trials of Landevennee (France). Inc: Proceedings of the International Oil Spill Conferences, American Petroleum Institute, Washington, DC, 1995, pp. 917 – 918.
[2]
A. Singh, O.P. Ward, Applied bioremediation and phytoremediation. Soil Biology, Vol. 1. Springer Verlag, Berlin, 281, 2004, pp 41.
[3]
J.D. Van Hamme, A.Singh, O.P. Ward, Recent advances in petroleum microbiology. Microbiol Mol Biol Rev 67, 2003, pp. 503-549
[4]
A.D. Venosa et al., Bioremediation of an experimental oil spill on the shoreline of Delaware bay. Environ. Sci. Technol. 30, 1996, pp. 1764 – 1775.
[5]
B.A. Wrenn, KL Sarnecki,, ES Kohar, K Lee, AD Venosa, Effects of Nutrient Source and Supply on Crude Oil biodegradation in Continuous-flow beach microcosms. J. Environ. Eng. ASCE 132, 2006, pp. 75 – 84
[6]
A.L. Juhasz, M. Megharaj, and R. Naidu, "Bioavailability: The major challenge to bioremediation or organically contaminated soil". Remediation Engineering of Contaminated Soil, Marcel Dekker Inc. New York, 2000
[7]
M. Alexander, Biodegradation and Bioremediation, 2nd edn. Academic Press, London, 1999.
[8]
M. Dua,, A. Singh, N. Sethunathan, A.K. Johri, Biotechnology and bioremediation: successes and limitations. Appl Bicrobiol Biotechnol 59, 2002, pp. 143-152.
[9]
R.D. Morris, Handbook of Bioremediation. CRC Press, Boca Raton, 1994.
[10]
Eva Riser-Robert, Remediation of Petroleum Contaminated Soil, Biological, Physical and Chemical Processes, Lewis Publishes, New York, 1998.
[11]
EPA, Guide for conducting Treatability studies under CERCLA: Biodegradation Remedy Selection. EPA/540/R-93/519 a, 1993, pp. 1 - 41
[12]
B.J. Eweis, J.E. Savina, P.Y.C. Daniel, D.S. Edward, Bioremediation Principles. International Edition, McGraw-Hill Company, Inc. United States, 1998.
[13]
A.Y. Itah, and JP Essien, Petroleum hydrocarbon degrading capabilities and growth profile of bacteria from crude oil polluted ultisol and brackish water, Global J. of Pure and Applied Sciences, Vol. 7, No. 3, 2001, pp. 507 – 511.
[14]
R.C. Sims, ‘Soil remediation techniques at uncontrolled hazardous waste sites: a critical review, Journal of the Air and Waste Management Association Reprint Series : RS – 15., 1990, pp. 489 – 514
[15]
L.O. Odokuma, and AA Dickson, Bioremediation of a Crude Oil Polluted Tropical Rain Forest Soil. Global Journal of Environmental Sciences, Vol. 2, No. 1, 2003, pp. 29-40
[16]
R.R. Dupont, RC Sims, JL Sims, and D Sorensen, In Situ biological treatment of hazardous waste-contaminated soils. In Biotreatment systems, vol. II, edited by Donald, L. Wise, CRC Press, Inc. Boca Raton, FL, 1988.
[17]
E.B. James & David F.O., Biochemical Engineering Fundamentals, Mc Graw-Hill Inc, Singapore, 1986.
ADDRESS
Science Publishing Group
1 Rockefeller Plaza,
10th and 11th Floors,
New York, NY 10020
U.S.A.
Tel: (001)347-983-5186