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Articles by F.M. Adebiyi
Total Records ( 3 ) for F.M. Adebiyi
  F.M. Adebiyi , F.S. Olise , O.K. Owoade , I.B. Obioh , T.R. Ajayi , H.B. Olaniyi and O.I. Asubiojo
  Ethylenediamine Tetra-acetic Acid (EDTA) extractable metals were determined in soils of bituminous sands occurrence area of Agbabu in southwestern Nigeria using Total reflection x-ray Fluorescence (TXRF) technique. Soil samples were collected at two different depths (0-50 and 50-100 cm) along a transverse line cutting across the main road in the study area. Fourteen metals; K, Ca, Ti, Mn, Fe, Ni, Cu, Zn, Rb, Sr, Ce, Eu, Au, Pb and Co were detected in all. However, Co, Pb and Ni were not detected in samples from 0-50 cm depths and Pb and Rb in some samples from 50-100 cm depths. The concentration, mean, range, standard deviation and correlation coefficients were calculated for the detected metals. Moderate correlations were found to exist between K, Ti, Ni, Zn, Rb and Sr; very high correlations between Ca, Cu Pb and Au in 0-50 cm depth samples. In the 50-100 cm depth samples, moderate correlations were observed between Ca, Cu and Zn; between Fe, Ti, Co and Ni. Pb was found to be highly correlated to Ca, Ti, Ni and Sr. This study provides a pre-exploration baseline data in the region and the need for the extension of such a baseline analysis to other environmental sensitive media-water resources, crops and local air quality in the region is emphasized.
  F.M. Adebiyi , O.I. Asubiojo , T.R. Ajayi and L.M. Durosinmi
  Multisolvent determination of the pH of soils from areas of Nigeria bituminous sand deposits was carried out using the electrometric method to establish the pH of the soils before the commencement of the exploitation of the bituminous sands and also to know the variation of pH of the soils using variable solvents over a range of soil to solvent dilution ratios. Soil sampling was done at two different depths viz., 0-50 cm and 50-100 cm and the samples were prepared for pH measurements using three commonly recommended solvents viz: distilled water, 0.01 M and 1 M KCI solutions. The results indicate the soil types are acid soils. This research will also add to the existing exploration data on the study area before the commencement of the exploitation of the natural resources.
  T.A. Adedosu , H.O. Adedosu and F.M. Adebiyi
  In the present study, sub-bituminous coals from Ribadu, Okaba, Okpara, Orukpa, Ogboyoga and Lignite from Asagba, all from Benue Trough, Nigeria were analyzed by energy dispersive x-ray fluorescence spectrophotometer (EDXRF). Different concentrations of trace metals present in the coal samples were recorded and subsequently used to determine the origin, organic matter input, maturity and mineralogical importance of the coals. There is closeness between Chromium (Cr) and Nickel (Ni) content as well as V/Ni ratio for the coals suggesting that the organic matter is derived from terrestrial/marine and are of low maturity. Also, the low V/V+Ni ratios for all the coals suggest that they are deposited under oxic condition, which is in agreement with earlier work done on these coals by other workers. Therefore, these ratios compliment with other geochemical parameters can be a useful tool in geochemical studies. Preliminary assessments of the mineral contents of the coal samples reveal that there is possible occurrence of iron bearing minerals like pyrite, siderite and ankerite and titanium rich minerals; ilmenite and rutile in the studied area. This is due to high abundance of iron (Fe) and titanium (Ti) in the samples. Also the level of some metals such as nickel, iron, titanium and copper in these samples indicate that the ash residue of these coals after burning could be a very good source of the metals. However, the presence of some trace elements like copper (Cu) and nickel (Ni) that causes corrosion of the turbines and also poison catalyst, in the coals, necessitate incorporation of the removal procedures of these metals before refining stage.
 
 
 
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