Browsing by Author "Adeoye, John B."

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    From origin to oversight: properties, impacts and management of heavy metals
    (Discover Applied Sciences, 2025) Oladimeji, Temitayo E.; Oyedemi, Melody O.; Odunfa, Moradeyo K.; Agboola, Oluranti; Adeoye, John B.; Oke, Michael A.; Akindele, Olubukola O.
    Heavy metals, derived from both natural processes (e.g., rock weathering) and anthropogenic activities (e.g., industrial emissions, agricultural runoff ), pose significant environmental and health risks due to their persistence and bioaccumulation in ecosystems. This review emphasizes the need for an in-depth examination of heavy metals, their sources, properties, toxicity, and management. The document also evaluates regulatory frameworks aimed at managing heavy metal contamination and highlights the need for innovative detection and regulation. It underscores the importance of future research and policy advancements to strengthen remediation efforts, safeguard public health, and promote sustainable environmental practices
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    Production of activated carbon from sawdust and its efficiency in the treatment of sewage water
    (Materials Science Forum, 2025) Oladimeji, Temitayo E; Olaniyan, Ifeoluwa F.; Emetere, Moses E.; Adeoye, John B.; Odunlami, Olayemi, A.; Abatan, Olubunmi G.
    The use of activated carbon for wastewater treatment has been established based on sustainability and cost. This study delves into the intricate process of producing activated carbon from cow and goat bones and explores the efficiency of this material in removing contaminants from distillery wastewater. The samples were carbonized at 700°C in a muffle furnace, then crushed in a mortar after cooling. The crushed samples were activated using 0.4M phosphoric acid for 24 hours and washed with distilled water, and finally oven dried. The elemental and microstructural was carried on the prepared activated carbon (AC) samples using X-ray Fluorescence (XRF) and Scanning Electron Microscopy (SEM). The heavy metals in the treated water were tested using Atomic Absorption Spectroscopy (AAS). The AC was used to treat waste water and factors on which adsorption depend, such as contact time (35 minutes and 60 minutes), adsorbent dosage (2.5g and 5g), and initial contaminant concentration (100% and 50%) were varied for each activated carbon sample (cow bone AC, goat bone AC, and a mixture of equal ratios of both). It was reported that activated carbon prepared from animal bones is rich in calcium. Also, chemical activation with phosphoric acid led to an increase in the external surface area of the particles with irregular cavities and pores. AC prepared from the mixture of cow and goat bones was most effective for distillery wastewater purification.