By: Ozioko Fabian Chidiebere, Mabel Keke, and Okirie Faith Uchendu
1&2Lecturer, Department of Chemical Engineering, Delta State University of Science and Technology, Ozoro, Delta State.
3Student, Ph.D, Department of Chemical/Petrochemical Engineering, Rivers State University Port Harcourt, Rivers State.
In order to calculate the rate of TPH concentration along the depths, this research project applies the
Monod Equation and First Order Rate Kinetics. TPH diffusion in the stagnant water medium was
examined using the Developed Dispersion and Degradation Model integrated with the first order
degradation rate and the Monod equation q2. TBC in both water media increased gradually over time
until the 56th day, and then rapidly between the 70th and 80th day. TPH content fluctuated at random
depths but declined with increasing time. In fresh water media as opposed to salt water media, crude
oil had a greater effect. The TPH predicted by the diffusion model employing first order rate kinetics
matched experimental results more closely than the model paired with the Monod equation. The
discrepancy between the experimental data and the anticipated TPH by the model that included the
Monod equation suggested that the Monod Equation might not be the best choice for a rate parameter
in the diffusion model. Although the rate of oil sedimentation dropped as depth increased, the generated
model outperformed the modified Stokes and Newton equations by a little margin, and it also compared
favorably with the experiment’s suspended solid measurement. Nonetheless, the rate of oil
sedimentation in stagnant water media can be investigated using either model. The degradation of TPH
under natural attenuation may take longer due to the level of physicochemical parameters in the water
media following crude oil pollution and the slow rate of TPH reduction observed during the
investigation period. However, the degradation of TPH could be sped up by utilizing the bacteria
identified through the bioargumentation technique.
Citation:
Refrences:
1. Bragg, J. R., Prince, R. C., Harner. E. J. & Atlas, R. M. (1994). effectiveness of bioremediation for the Exxon Valdez oil Spill. Nature 368-413-418.
2. Cernigha, C.E., Gibson, D.T., & Van Baalen, C. (1980). Oxidation of Naphthalene by Cyanobacteria and Microalgae, Journal of General Microbiology, 116(2), 495-500.
3. Chaillan, F., Le Fléche, A. Bury, E., Phantarong, Y. H., Grimont, P. Saliot, A. & Oudot, J. (2004). Identification and Biodegradation Potential of tropical aerobic hydrocarbon-degrading micro organisms. Research in Microbiology, 155(7), 587-595
4. Ekperi NI, Achinike W. Pectin Extract Optimization from Ripe Cocoa Pod Husks using Response Surface Methodology and Artificial Neutral Network. Indian Journal of Engineering, 2022, 19(52), 403-409
5. Chapra, S.C. & Canale, R.P. (2010). Numerical Methods for Engineers (6th Edition), New York. McGraw-Hill.
6. Chen, G. & Tao D. (2005). An experimental study of stability of oil-water emulsion. Fuel Process. Technol, 86:499-508.
7. Chigor, V.N., Sibanda, T. & Okoh, A. I. (2013). Variations in the Physicochemical Characteristics of the Buffalo River in the Eastern Cape Province of South Africa, Environmental Monitoring and Assessment, 185, 8733–8747.
8. Chrysalidis, A. & Kyzas, G. Z. (2020). Applied Cleaning Methods of Oil Residues from Industrial Tanks, Processes, 8(5), 569-595.
9. Colwell, R.R., Walker, J. D. & Cooney, J. J. (1977). Ecological aspects of microbial degradation of petroleum in the marine environment,” Critical Reviews in Microbiology, 5(4), 423 – 445.
10. Cooney, J.J. Silver, S. A. & Beck, E. A. (1985). Factors influencing hydrocarbon degradation in three freshwater lakes,” microbial ecology, 11(2), 127 – 137.
11. Cortes, J.E., Suspes, A., Roa, S., González, C., & Castro, H.E. (2012). Total Petroleum Hydrocarbons by Gas Chromatography in Colombian Waters and Soils, American Journal of Environmental Science, 8, 396–402.
12. Cunningham, C.J., Ivshina, L. B., Lozinsky, V. I., Kuyukina, M. S. & Philip, J. C. (2004). Bioremediation of Diesel-Contaminated Soil by Micro-organisms immobilized in Polyvinyl Alcohol. International Biodeterioration and Biodegradation, 54(2-3), 167-174
13. Das, K. & Mukherjee, A. K. (2007). Crude Petroleum Oil Biodegradation Efficiency of Bacillus Subtilis ad Pseudomonas Aeruginosa Strains isolated from a Petroleum-Oil contaminated soil from North-East India. Bioresource Technology, 98(7), 1339-1345
14. Daugulis, A. J. & McCracken, C. M. (2003). Microbial Degradation of high and low molecular weight poly-aromatic hydrocarbons in a two phase partitioning bioreactor by two strains of Sphingomonas 5p. Biotechnology Letters, 25(17), 1441 – 1444
15. Delvigne, G. & Sweeny, C. E. (1988). Natural dispersion of oil. Ol Chem, pollut, 4, 281-310
16. Diaz, M.P., Boyd, K.G., Grigson, S.J.W. & Borgess, J.G. (2002). Biodegredation of Crude Oil across wide range of salinities by an extremely halotolerant bacterial consortium MPD-M, Immobilized onto Polypropylene Fibers. Biotechnology and Bioengineering, 79(2), 145-153, 2002.
