Browsing by Author "Afolalu, S. A."
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Item Bio- Agro Waste Valorization and its Sustainability in the Industry: A Review(International Conference on Engineering for Sustainable World (ICESW 2020), 2021-03) Afolalu, S. A.; Salawu, E.Y.; Ogedengbe, T.S.; Joseph, O. O.; Okwilagwe, Osise; Emetere, M. E.; Yusuf, O. O.; Noiki, A.A; Akinlabi, S.AThe application of bio-agro waste in industrial production has become extensive. Many industries have embarked in large scale production due to the broadness in the application of the bio-agro waste. This study vividly and succinctly surveyed the different bio-agro waste, its areas of application and its sustainability in industrial production. Several examples of bio-agro waste have been reported. Their relevance in bio-ethanol production has equally been discussed. More so, current research and development in harnessing the bio-agro waste were equally reported, to achieve better economic sustainability. Thus, the study has provided a new circular economic method for addressing the problems associated with bio-agro waste.Item Effects of Emission Characteristics on Elemental Composition of Selected PVC Ceiling Materials(American Scientific Publishers : Materials Focus, 2018) Dirisu, J. O.; Oyedepo, S. O.; Fayomi, O. S. I.; Okokpujie, I. P.; Asere, A. A.; Oyekunle, J. A.; Afolalu, S. A.; Abioye, A. A.This research work determined the emission characteristics and elemental composition of selected PVC ceiling materials common in Nigerian markets especially during service. This research work determined the emission characteristics and elemental composition of selected PVC ceiling materials common in Nigerian markets. The emission data and elemental structure gave insight to appraise their suitability as ceiling materials. Three PVC ceiling materials were used for this analysis: Nigerian made PVC, layered Composite PVC and white PVC. Rutherford Backscattering Spectrometry (RBS) was performed to obtain the elemental structure of the ceiling materials using Ion Beam Analysis facility. 0.05 kg of the samples were combusted in a controlled fire chamber and the gasses emitted; CO, SO2, NO, and volatile organic compounds (VOC) were identified using four gas analyzers. Elements were detected in total and data collected from the experiment were analyzed. Results showed that Nigerian made PVC has the highest total noxious gas among the three samples with value of 3732.5 ppm while layered composite PVC has the lowest among the PVCs with the value of 1477.5 ppm. The elemental make-ups of the samples influence their emission characteristics. The study established that PVC samples were noxious in terms of their emission characteristics due to the effects of their elemental basis.Item Improvement of ASTM A53 Steel Durability Using Agrowastes as Carburizing Agent(The International Journal of Integrated Engineering, 2021-08-31) Afolalu, S. A.; Ikumapayi, O. M.; Emetere, M.E.; Ogedengbe, T.S.The importance of steel in manufacturing and construction over the past century cannot be over-emphasized and easy accessibility couple with excellent mechanical properties make it preferable over others. However, the problem of durability has posed a serious concern as majority of steel application are meant for long term use. Several attempts have been made to improve the durability of steel in the past and increase of carbon content in low carbon steel was found to be a suitable agent. Although getting carbon is not the challenge rather obtaining it from a sustainable source that has zero environment impact. This research identified two separate agrowaste that has high carbon content the issue of sustainability brought about the development of carburizing agent from agrowaste that are easily accessible namely palm kernel and eggshell which is employed in this research. The use of agrowaste was found to be effective as there was notable increase in grain structure of the carburized steel when compared to the control sample without carburized agent in it.