Browsing by Author "Oluwaseun, O.V"

Now showing 1 - 7 of 7
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    Assessment of Existing Drainage Facilities with an Intensity Duration-Frequency Curve for the Purpose of Storm Water Management in Ilorin Metropolis
    (Journal of Research Information in Civil Engineering, 2020) Oluwaseun, O.V; Iji, J.O; Bilewu, S.O
    Drainage channels are critical facilities necessary for the conduit and proper transportation of surface run off, with its effectiveness comes storm water management, this is because without the drains the water can become a major hazard as flooding instead of a blessing inform of rainfall precipitation. This study has evaluated the existing drainage facilities in Ilorin metropolis for the purpose of storm water management. The approach used are; preliminary data collection, reconnaissance survey, field work and data computation. This was followed by a desk study of fall data to produce an IDF curve, analysis of the drains based on the intensities obtained and report writing. Results obtained revealed that most of the existing drainage facilities in Ilorin metropolis were functioning below capacity hydraulically, in terms of discharge, area and velocity. And this makes the surrounding environment prone to flooding. Area and velocity are two of the most seriously affected hydraulic parameter in the study area with percentage difference of 10% in most study area.
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    Assessment of Quality Status of Soils Around Dumpsites in Ilorin Metropolis, Nigeria
    (Nigerian Research Journal of Engineering and Environmental Sciences, 2020) Iji, J.O; Mokuolu, O.A; Abdulkadir, T.S; Oluwaseun, O.V
    Pathogenic microorganisms in solid waste can be introduced into the environment when improperly managed. This study evaluates the microbiological and physicochemical properties of topsoil samples obtained from three municipal waste dumpsites and a dumpsite free area (control sample) all located in Ilorin, Kwara State, Nigeria. Soil samples were collected on a spot at depth range of 15-30 cm for laboratory analyses which included measurements of temperature, pH, moisture content and microbiological population. The pH values of the samples ranged from 6.7 to 7.9. The temperature ranged from 26 oC to 28 oC which falls within the mesophilic range. The total aerobic heterotrophic bacteria population ranged from 1.8×105 cfu/ml to 5.8 × 105 cfu/ml for all the three dumpsites and 1.0×105 cfu/ml for the control. The specie of bacteria isolated from the soil samples from the dumpsites included Staphylococcus auerus, Streptococcus faecalis, Klebsiella aerogenes, Bacillus subtilis, Proteus vulgars and Micrococcus cuteus. Only Bacillus subtilis and Micrococcus cuteus were dominant in the control. The total viable fungal population ranged from 1.0 × 104 cfu/ml to 2.6 × 104 cfu/ml for all the soil samples from the dumpsites and 1.1 × 104 cfu/ml from the control. The fungi isolated from the soil samples included Aspergillus flavus, Rhizopus stolarifer, Aspergillus niger, Penicillium chrysogenium and Alteruaria tenuis. Only chrypsogspuss and Alteruaria tenuis were identified in the control. Presence of microorganisms in dumpsites around Ilorin metropolis suggests that environmental quality has been significantly affected as the soil sample showed high population of pathogenic microorganisms. Hence, remediation is suggested
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    Characterization of Solid Waste Generated on the University of Ilorin Campus and Recycling of the Paper Content.
    (Journal of Research Information in Civil Engineering, 2019) Bilewu, S.O; Oluwaseun, O.V
    This work presents the characterization of solid waste generated on the university of Ilorin main campus and recycling of the paper content with faculty of Engineering and Technology buildings as a case study. A total of 91.7kg of waste was sampled and characterized and it was concluded that various types of waste generated are: Cardboard/carton, Nylon, PET bottles, Paper, Wood, Food waste, Aluminum can, Yard waste, Glass bottle, Packaging wraps, Computer hardware, Metal scraps, Laboratory waste such as hardened soil samples, bamboo stalks, Lead acid accumulator, and ink cartridge. The most prominent ones among these waste components was found to be the Miscellaneous with a percentage component of 29.85. Miscellaneous comprises of photocopier parts, broken crates, ink cartridge and laboratory wastes. Cardboard/carton seconded with a total percentage of 20.55% while Wood was the third largest with a percentage of 12.88%. Others include: Food waste, 6.58%; PET bottles,5.68%; glass bottles, 5.92%; yard waste, 4.26% aluminum cans,3.11%; nylon,2.0%; paper, 2.88%; yard waste, 2.28%. packaging wraps with a percentage composition of 1.11% was the least. Finally, some of the waste paper were recovered and recycled.
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    DESIGN ANALYSIS OF WATER DISTRIBUTION PIPE NETWORK OF ROYAL VALLEY HOUSING ESTATE IN ILORIN USING ARC-GIS AND EPANET
    (UMUDIKE JOURNAL OF ENGINEERING AND TECHNOLOGY (UJET), 2017) Oluwaseun, O.V; Ayanshola, A.M; Jimoh, M.O
    This report presents the use of Arc-GIS and EPANET to analyze simulate and design water distribution pipe network. The field work involved the use of structured questionnaire to obtain information on household demography and obtain water use. The corresponding data obtained was statistically analyzed with use of Stata 12.0 and Microsoft Excel software to establish a model for water use and to evaluate the variables that affect household water use. Google Earth and Arc-GIS software were employed to digitize the map of the study area in order to obtain the spatial information needed for analysis and design. The Water demand at individual node on the pipe network was estimated and used for simulation of the pipe network system. Allocation of buildings to the particular nodes that supplies water to them was carried out with the aid of Arc-GIS software with Voronoi diagram approach. Analysis and simulation was carried out with the aid of EPANET 2.0 software in order to obtain the minimum and maximum pressure, velocity and the flow in various pipes of the water distribution system. It was revealed that the estimated average volume of water used by individuals in the estate based on statistical analysis and questionnaire was estimated to be 90.7l/c/d which is below the WHO standard of 120l/c/d for an individual, the simulated minimum and maximum pressure for the study area were 6.67m and 20.19m respectively which was found to be adequate to cater for the water supply to the household in the study area. The pipe diameter required for water distribution in the study area ranged between 75mm and 100mm for adequate water supply. The model developed in this research work is very useful for household water use prediction in the study area.
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    Determination of Peak Discharge for Selected Drainage Facilities in Ilorin Metropolis for the Purpose of Storm Water Management
    (Nigerian Research Journal of Engineering and Environmental Sciences, 2020) Oluwaseun, O.V; Bilewu, S.O; Ayangbola, D.A
    The research work was aimed at determining the peak discharge of flow (maximum storm runoff) into some selected drainage systems in Ilorin metropolis for the purpose of stormwater management. The Ilorin municipality has been observed to have drainage system inadequate in capacities to convey storm runoff as a result of solid waste disposal into drainage systems which leads to drain blockage and the excess runoff result in flood. To obtain the value of excess runoff that leads to flood in the drainage systems under study, the required drainage area (m2) for the adequate conveyance of the determined peak flow was compared with the existing drainage area (m2) the difference in both areas results in the excess runoff which leads to flood. The Rational method was used to compute peak discharge for the study areas while the Manning’s equation was adopted to compute the expected drainage channel area required for the adequate conveyance of the peak discharge. The result showed that the existing drainage area in most of the selected drainage systems is less than the required area needed to convey the peak stormwater discharge into the drainage system. The average peak discharge obtained for all the drainage channels in the study areas was 266.68 m3/s while the average area expected to convey the discharge was 8.85 m2. However, the average area of the existing drainage systems was 0.349 m2 which is relatively to as compared with 8.85 m2 which represent the excess discharge that leads to the flooding.
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    Performance-Assessment of Existing Drainage Facilities for The Purpose of Stormwater Management
    (LAUTECH Journal of Civil and Environmental Studies, 2020-03) Oluwaseun, O.V; Bilewu, S.O; Adejumo, E.A; Makanjuola, B.G
    The study assesses the performance of the existing drainage facilities in some selected areas in Ilorin Metropolis of Kwara State, Nigeria. The rapid increase in urbanization, increase in population without corresponding infrastructures in the city of Ilorin have led to the increased incidence of flood as the available drainage channel cannot convey the volume of water. The study focuses on the household demograph, flooding, drainage maintenance and solid waste management strategies employed in the study areas. The methodology involves the use of questionnaires and interview method to gather information from the respondents of the study areas. The study was carried out with 200 copies of well-designed questionnaire through systematic random sampling technique in the administration. The research questions were answered using tables of frequencies and percentages, bar chat, pie chart and regression analysis for flood modelling and prediction of flood occurrence. The analysis revealed that frequent flood events in the city of Ilorin can be traced to dumping of solidwaste in the drainage system, inadequate drainage channels, poor solid waste management strategy and variables such frequency of drainage maintenance, predominant waste material and duration of drainage maintenance, made statistically significant contributions to the prediction of Flood occurrence. A model for prediction of effect of stormwater management on flood was formulated. All the variables used in the model were evaluated and it has been established that frequency of drainage maintenance makes the strongest contribution to the causes of flood (Y dependent variable) among all other significant variables, other significant variables included availability of drainage system, waste disposal mechanism, distance of available dumpsite, frequency of waste collection, agency responsible for drainage maintenance and predominant waste materials.
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    Quality Assessment of Groundwater of Kajola, a Town near Owu Falls in Kwara State
    (Journal of Research Information in Civil Engineering, 2017) Jimoh, M.O; Iwaloye, B.A; Oluwaseun, O.V
    This study was conducted in Kajola a town near Owu falls in Kwara State. It was aimed at assessing the quality of groundwater and its suitability for drinking and other domestic use. Groundwater from 2 boreholes and a reservoir (containing well-water) were sampled and analysed for the following physico-chemical water quality parameters using standardized procedures: (pH, dissolved oxygen, Electric conductivity, Turbidity, Total dissolved solids, Total solids, Chloride, Alkalinity, Magnesium, Sodium, Biochemical oxygen demand, Chemical oxygen demand, Total hardness, Nitrate, Total suspended solid, Sulphate) and Temperature which was measured in-situ. Results obtained from the laboratory shows that all parameters tested for except BOD and Temperature of all samples were within the permissible limit of World health organization for drinking water, Nigerian standard for drinking water quality and other agency’s guideline available for comparison. The temperature of samples 1, 2 and the reservoir having a mean value of 28.7OC was slightly higher than the desirable limit of 25OC indicating thermal pollution which can be corrected by installing Thermostatic mixing valves to ensure safe temperature. Also, the BOD concentration can be reduced by application of hydrogen peroxide hence making the water in Kajola safe for drinking and other domestic purpose.