Sustainable oil spill cleanup: papaya seed sorbent performance and characterization Emeka Amadi, C.I. Egwuatu, C.M. Ochiaka Nnamdi Azikiwe University, Nigeria In contemporary times, the issue of oil spills has emerged as a prominent environmental concern, posing detrimental effects on ecosystems and marine life. Addressing this challenge and exploring cost-effective alternatives has become imperative for environmentalists. Among various sorbents, agricultural waste stands out as a promising solution for oil cleanup, owing to its biodegradability and buoyancy attributes. This research delves into the oil sorption capacity of papaya seeds, a locally sourced agricultural byproduct, as a substitute material for managing crude and gas oil spills. The study highlights the dependence of sorption capacity on diverse factors, including surface characteristics, oil type, oil film thickness, sorption time, and temperature. Notably, the highest oil absorption capacity of papaya seeds as a sorbent was observed at a temperature of 60°C with a sorption time of 8 minutes, while the lowest capacity was recorded at a temperature of 80°C with a sorption time of 75 minutes. Furthermore, the study employs analytical techniques such as FTIR spectrometry and scanning electron microscopy (SEM) to investigate the microstructure and morphology of papaya seeds. These findings contribute to our understanding of utilizing papaya seeds as an eco-friendly solution for mitigating oil spills. References 1. Aboul-Gheit, A-K., Khalil, F.H., Abbdul-Moghny, T., (2006). Adsorption of Spilled Oil from Sea Water by Waste Plastic. Oil and Gas Technology Revolution IFP, 61(2): 259-268. 2. Adebajo, M.O., Frost, R.L., Klopprogge, J.T. and Carmody, O., (2003). Porous Materials for Oil Spill Cleanup: A Review Of Synthesis and Absorbing Properties. Porous Materials,10: 159-170. 3. Adebajo, M.O. and Frost, R.L., (2004a). Acetylation of Raw Cotton For Oil Spill Cleanup Application: An FTIR And 13C MAS NMR Spectroscopic Investigation. Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy, 60(10): 2315- 2321. 4. Adebajo, M.O. and Frost, R.L., (2004b). Infrared and 13C-MAS Nuclear Magnetic Resonance Spectroscopic Study Of Acetylation of Cotton. Spectrochimica Acta, Part A: Molecular And Biomolecular Spectroscopy, 60(1-2): 449-453. 5. Adonis, M., Martinez, V., Riguelme, R., Ancic, P., Gonzalez, G. and Tapia, R., 6. (2003).Susceptibility and Exposure Biomarkers in People Exposed to Pahs from Diesel Exhaust. Toxicology Letters, 144(1): 3-15.Agency for Toxic Substances and Diseases Registry (ASTDR), (2008a).Toxicological Profile for Toluene Update. US Department of Health and Human Service, Public Health Service. Atlanta GA. Pp 7-25. 7. Agency for Toxic Substances and Diseases Registry (ASTDR), (2008b).Toxicological Profile for Cresols. US Department of Health and Human Services, Public Health Service. Atlanta GA. Pp 9-15. 8. Aisien, F.A., Ebewele, R.O and Hymore, F.K., (2011). Mathematical Model of Sorption Kinetics of Crude Oil By Rubber Particles from Scrap Tyres, Leonardo Journal of Science 18:85-96
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