Browsing by Author "Ajani Adegbenro S"

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    Geochemical Investigation of the Concentration of Some Metals in Well Water, Malete, Kwara State
    (IJLTEMAS, 2024-12) Egbeyale Godwin B; Ajani Adegbenro S; Ogunseye Ttitus T; Ogunbiyi O
    Access to safe and clean drinking water is essential but underground water contamination by some (heavy) metals poses a serious threat to water quality in many areas. This research focus was to analyze the concentration of various metals in underground water samples obtained from different locations in Malete, Kwara State, Nigeria. The metals of interest include lead (Pb), chromium (Cr), manganese (Mn), uranium (U), and cobalt (Co), which are associated with adverse health and environmental effects, such as cancer and other forms of diseases. Through atomic absorption spectrophotometry (AAS), the samples collected from Westend 1, Westend 2, Yidi road, New Yidi road, and School Road were analyzed to assess the concentration of some metals that can pose health risks. The results showed that the average lead (Pb) concentration across samples was 0.07 mg/L, chromium (Cr) was 0.02 mg/L, the average manganese (Mn) concentration was 0.16 mg/L, Uranium (U) averaged at 0.02 mg/L and Cobalt (Co) was found at an average concentration of 0.03 mg/L. The results were compared with the World Health Organization (WHO) drinking water quality standards. Chromium (Cr) concentration was below the WHO standard of 0.05 mg/L suggesting a low risk of chromium toxicity. while other metals were above the standard. Hence ,the results identified potential sources of metal contamination and represents a significant step toward addressing the environmental and health challenges posed by some metals contamination in Malete
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    INTERPRETATION OF AEROMAGNETIC DATA OF OYO AREA, SOUTHWESTHERN NIGERIA
    (International Journal of Science Academic Research, 2022-03) Egbeyale Godwin B; Ogunseye Titus T; Ajani Adegbenro S; Bello Adekunle K
    The study presents aeromagnetic data interpretation which involves the interpretation of aeromagnetic data features. Due to Magnetic properties of the earth crust, aeromagnetic anomalies over Oyo town are evaluated to map the magnetic lineaments and estimate the depth to the basement. The aeromagnetic data, from the study area sheet 241 Oyo, acquired were subjected to various filtering and processing technique which in turn properly displays the magnetic anomalies and magnetic intensities. Butterworth was applied to improve the signal to noise ratio, to reduce magnetic equator to properly position anomalies and to remove grappling effects. Gaussian filter was also applied to remove the regional effects thus leaving only the residual anomalies. Other processing techniques such as Upward continuation of 500m, 1000m, 1500m and 2000m, derivatives in x, y directions, analytic signal to delineate magnetically active zones, averaged power spectrum, Euler Deconvolution. The result shows that the depth to the top of the deepest magnetic source of about 2.3 km, depth to the shallow source ranges from 0.25 to 0.5km The obtained data shows that there is an abundance of positive anomalies that correspond to the migmatite-gneiss complex which is of moderate intensity. Derivatives in x, y and z directions revealed the parallel to sub-parallel lineaments which generally trends NE-SW direction except for major lineament that cuts through the migmatite-gneiss complex which trends in NW-SE direction. All these observations were made from qualitative and quantitative data interpretations, which in turn support magnetic information of the area.
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    Thermal properties of some selected materials used as ceilings in building
    (Nigerian Society of Physical Sciences, 2024) Egbeyale Godwin B; Ajani Adegbenro S; Oyatomi Tomisin M
    Thermal properties of materials are a crucial area of interest in the building industry. This study investigated the thermal properties of Polyvinyl Chloride (PVC), Plaster of Paris (POP), asbestos, and cardboard, commonly used as ceiling materials. The steady-state method was employed to determine the thermal properties; thermal conductivity, thermal resistivity, thermal diffusivity, thermal absorptivity, and density). The obtained results of thermal conductivity of PVC, POP, and Asbestos cardboard are 0.1083 W/mK, 0.1314 W/mK, 0.1068 W/mK and 0.0851 W/mK, respectively, and are within range of values 0.0851-0.1314 W/mK The thermal resistivity of the cardboard, POP, Asbestos and PVC are 11.7509 (W/mK)-1, 7.6103 (W/mK)-1, 9.3633 (W/mK)-1 and 9.2336 (W/mK)-1, respectively. The results of thermal diffusivity of PVC, Asbestos, POP, and cardboard are 6.34 × 10-7 m2 /s, 6.0 × 10-8 m2 /s, 1.20 × 10-7 m2 /s, and 8.0 × 10-8 m2 /s, respectively. The results of thermal absorptivity of cardboard, PVC, POP, and Asbestos are 21.31 x10-2 m-1, 7.57 × 10-2 m-1, 17.40 × 10-2 m-1, and 15.07 × 10−2 m-1, respectively. The density results of POP, PVC, Asbestos, and cardboard are 79.84 kg/m3 , 203.59 kg/m3 , 824.13 kg/m3, and 645.81 kg/m3 respectively. The results revealed some materials’ thermal properties to understand their behavior as they interact with heat fluctuation. In comparison, the results revealed that PVC and asbestos are better materials for building insulation since they have good thermal efficiency.