Browsing by Author "Ayanshola, A.M."
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Item Alleviating Water Shortages in University of Ilorin Teaching Hospital, Kwara State, Nigeria(Federal University of Technology, Lafia, Nigeria, 2015) Mokuolu, O.A.; Sojobi, A.; Ayanshola, A.M.Adequate water supply is a necessity to life and an essential infrastructure in a major tertiary Hospital. This study looks into the current situation and future solution to the shortage of water experienced in the University of Ilorin, Kwara State, Nigeria. Total water demand was 332m3/d. considering immediate future expansion; water demand was put at 400 m3/d. Source of water was borehole yielding about 115 m3/d when working at maximum capacity, total of 20m3 water was supplied by 2 water tankers per day revealing a shortfall of 197 m3/d. Possible solutions were examined using Linsley adapted method: Surface water or river intake, direct supply from existing sources and construction of dams. Their various merits and de-merits were examined and the most appropriate to meet current and future demand was selected for intervention. Construction of additional boreholes, adequate maintenance and monitoring were recommended.Item Assessment of Flow Pressure in Selected Zones of Ilorin Township Water Supply(Department of Civil Engineering, University of Ilorin, Nigeria, 2006) Ayanshola, A.M.; Sule, B.F.In our societies today such as Ilorin metropolis, the study area, the objective water supply system has not been attained, thus calling for improvement in pipe distribution system to supply water to various consumers more effectively. In an attempt to improve the service, the Kwara State Government constructed additional service reservoirs at different locations within the metropolis; most of which receive water from Agba dam treatment plant. Pipe network analysis was then carried out based on the demand in the study area. 10 cases were considered using the location of the service reservoirs in relation to the study area and also on the actual production for distribution to the three zones within the study area. The pressure distribution at the nodes was determined for the ten cases. The maximum and the minimum nodal pressures obtained were compared with recommended values for satisfactory performance of a water supply pipe network.Item Assessment of Neural Networks Performance in Modeling Rainfall Amounts(Department of Forestry, Wildlife and Range Management, University of Agriculture, Makurdi, Nigeria, 2017-03) Abdulkadir, T.S.; Salami, A.W; Aremu, A.S.; Ayanshola, A.M.; Oyejobi, D.O.This paper presents the evaluation of performance of Neural Network (NN) model in predicting the behavioral pattern of rainfall depths of some locations in the North Central zones of Nigeria. The input to the model is the consecutive rainfall depths data obtained from the Nigerian Meteorological (NiMET) Agency. The neural networks were trained using neural network toolbox in MATLAB with fifty years (1964–2014) total monthly historical data of five locations while two other locations, Abuja and Lafia with twenty-nine years (1986-2014) and eleven years (2004-2014) total monthly data respectively. Analysis showed the variation in the values of correlation coefficients (R) for each location of the study area in response to change in number of hidden neurons. The average R values of 0.80, 0.62, 0.65, 0.67, 0.79, 0.76 and 0.81 with corresponding mean square errors of 2.12, 0.23, 0.26, 0.36, 2.61, 1.18 and 1.03 were obtained for Abuja, Makurdi, Ilorin, Lokoja, Lafia, Minna and Jos respectively. The results showed some slight variability in the performances of NN due to changes in the number of hidden neurons during the network training. These values of R indicated that the networks are fit to be used for the subsequent quantitative prediction of rainfall depths in each location which is useful for safeguarding against future flood and drought occurrence in the North Central zone, Nigeria.Item Assessment of Neural Networks Performance in Modeling Rainfall Amounts(Research in Forestry, Wildlife and Environment, 2017) Abdulkadir, T.S; Salami, A.W.; Aremu, A.S.; Ayanshola, A.M.; Oyejobi, D.O.Item Assessment of Water Consumption Pattern in Ilorin, Kwara State, Nigeria(Faculty of Engineering and Technology, Ladoke Akintola University of Technology, Ogbomoso, Nigeria, 2012) Ayanshola, A.M.; Salami, A.W; sule, B.F.Item Building National Capability Through S&T and Innovation Policies – Opportunities and Challenges in Developing Countries(Zaheer Science Foundation, New Delhi, India, 2014) Jamal, A.; Mandal, K.; Ayanshola, A.M.Item Delineation of Groundwater Potential Zones in Awun Basin and Its Environs Using Remote Sensing and GIS Techniques(Nigeria Association of Hydrological Sciences (NAHS), 2017) Ayanshola, A.M.; Jimoh, M.O.; Bilewu, S.O; Kolade, S.A.; Salami, A.W.; Aremu, A.S.An integrated approach using remote sensing and Geographic Information Systems (GIS) was adopted to assess the groundwater potential in the Awun basin and its environs in Kwara State, Nigeria. Digitally enhanced colour composites and panchromatic images of Landsat TM were interpreted to produce thematic maps of the study area. Topographic parameters were derived from digital elevation models and used to map landforms. Fracture patterns and spacing were measured in the field in different rock types and compared with lineaments. All thematic layers were integrated and analysed and a groundwater potential map was generated. The spatial distribution of groundwater potential zones showed regional patterns related to lithologies, lineaments, drainage systems and landforms. Results showed that spatial distribution of the most promising sites for groundwater exploration was dependent on the interrelated factors of lithology, topography and geologic structure. The most promising sites were distributed in 56% of the study area. The results demonstrate that the integration of remote sensing, GIS, traditional fieldwork and models provide a useful tool in the assessment and management of water resources and development of groundwater exploration plansItem Design Analysis of Water Distribution Pipe Network of Royal Valley Housing Estate, Ilorin, Using Arc-GIS and EPANET(College of Engineering and Technology, Michael Okpara University of Agriculture, Umudike, Nigeria, 2017-12) Oluwaseun, V.O.; Ayanshola, A.M.; Jimoh, O.M.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 90.7 l/c/d which is below the WHO standard of 120 l/c/d for an individual, the simulated minimum and maximum pressure for the study area were 6.67 m and 20.19 m, 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 75 mm and 100 mm for adequate water supply. The model developed in this research work is very useful for household water use prediction in the study area.Item Development of a Negarim Micro-catchment System for Citrus Production(Department of Forestry, Wildlife and Range Management, University of Agriculture, Makurdi, Nigeria, 2019-03) Ayanshola, A.M.; Dauda, K.A.A Negarim Micro-catchment System can be considered as a rudimentary form of irrigation and it is a directly productive form of soil and water conservation which focused on harvesting and conserving rainwater for improved crop productivity. The system was designed and constructed. The system consists of the catchment area, cultivated area, runoff plot, runoff gutter and collection tank. Results of the analysis revealed that on average, an annual rainfall of 1,233.6mm or higher can be expected at 50% probability of occurrence and at average frequency of occurrence of 1,233.61mm or higher can be expected a 50% probability of occurrence of 2½years interval. The results also showed that the mean runoff coefficient for the catchment throughout the period of observations is 0.48, the average value of crop water requirement is 3.63mm/month, the chemical analysis results also showed that the salinity, infiltration rate, toxicity and fertility level of the soil in the study area are satisfactory and suitable for citrus production and finally, the average catchment-cultivated area ratio (C:CA) is 1.0478. However, if the available rain can be concentrated on a small area, through water harvesting system, both yields and reliability of production can be significantly improved.Item Development of storm hydrographs for the rivers within drainage network in Kwara State, Nigeria using Snyder’s method(Faculty of Engineering and Technology, University of Ilorin, Nigeria, 2010) Ayanshola, A.M.; Salami, A.W; Olofintoye, O.O.; Abdulkadri, T.S.Item Domestic Water Consumption Pattern in the Federal Capital Territory, Abuja, Nigeria.(International Association for Modelling and Simulation Technique in Enterprise, Lyon, France, 2013) Ayanshola, A.M.; Sule, B.F.; Salami, A.W.; Okeola, O.G.This paper examined the residential water consumption pattern in the Federal Capital Territory (FCT) Abuja, Nigeria. The parameters considered were volume of water use, population, numbers of toilets and number of rooms in the houses at household level of residential areas. Analysis was carried out on hourly, daily and weekly bases to obtain the trend of water usage. Daily water use has been modelled in order to establish the structural relationship between the variables and household water demand and to reveal the determinants of the variation of water use. The results showed that the average water consumption rate is 251.47 litre/capita/day, which is much more than the minimum value of 120 litre/capita/day recommended by WHO. The test on model results indicated that number of toilets; number of rooms and household population are significant and are positively related to the average daily water demand.Item Evaluation of Supply Variability of Household Water Use in Ilorin Metropolis, North Central Nigeria(Wollega University, Ethiopia, 2015-06-19) Ayanshola, A.M.; Sule, B.F.; Mandal, KItem Evaluation of the Effect of Precipitation Variation on Groundwater Quality in Ilorin Metropolis, Nigeria(FACULTY OF ENGINEERING AND ENVIRONMENTAL SCIENCES, OSUN STATE UNIVERSITY, NIGERIA, 2019-11) Ayanshola, A.M.; Sossou, P.M.; Bilewu, S.O; Abdulkadril, T.S.; Oluwaseun, V.O.; Owolabi, S.O.Groundwater is an essential part of the hydrological cycle serving as the primary source of water where public water supply is neither available nor adequate. This study evaluated the seasonal variability of water quality with respect to monthly rainfall depth in Ilorin metropolis, Nigeria. This was achieved by the determination of the month with minimum and maximum rainfall depth as well as determination of the concentration of Physico-chemical and bacteriological parameters of water sample in the study area. Twenty years historical data of monthly rainfall depth was obtained and analysed and a total of 32 water samples were collected from Shallow wells in the month with minimum and maximum rainfall depth from 8 different locations in year 2018 to determine their concentration. The Physico-chemical and bacteriological properties of water samples were analysed using Standard Methods. The potability of the water samples were assessed with respect to WHO standard. The study revealed that Turbidity, Fe2+, Dissolved Oxygen, Total Viable Count and Total Coliform Count concentration exceeded the Word Health Organization (WHO) standard in all the samples. Hence, the Shallow well water sources are polluted and the concentration of these pollutants increased in the month with minimum rainfall depth. The reduction in the pollutant concentration during the month with higher rainfall depth might be as a result of dilution through groundwater recharge from precipitation. The study also shows that the wells are not safe sources for drinking purposes and some form of treatment will be required before consumption.Item Evaluation of Willingness to Pay for Reliable and Sustainable household Water Use in Ilorin, Nigeria(African Journals Online, 2013-11-04) Ayanshola, A.M.; Sule, B.F.; Salami, A.W.This study focused on the evaluation of willingness-to-pay (WTP) for sustainable household water use in Ilorin, Nigeria. The study involved assessment of the existing water supply situation particularly considering water use indicators such as demography, adequacy of existing water supply system and WTP for reliable supply. Field work involved the use of structured questionnaire to obtain data on household water use and WTP for a reliable water supply of the sampled houses consisting three land use patterns. Stata/SE 8.0 and Microsoft EXCEL software were employed to evaluate the variables that affect WTP for improved household water use while ccontingency Valuation Method was adopted to evaluate the WTP for reliable and sustainable service delivery. The findings of the study revealed that: approximately 70 % of total sampled households were connected to municipal supply out of which 13 % indicated satisfaction in terms of sufficiency and 87 % used alternative sources to augment water supply; consumers are willing to pay an average sum of N737.22 per month for improved water supply services and; gender, water quality and household income level have significant impact on WTP at 5% level of significance. There is the need to put in place a framework to enhance improvement of system reliability and sustainability.Item The Factors that Affect the Free Flow Speed on an Arterial in Ilorin, Nigeria(Faculty of Engineering, University Nigeria, Nsukka, Nigeria, 2016) Yusuf, I.T.; Adeleke, O.O.; Salami, A.W.; Ayanshola, A.M.Generic factors (weather, environment, vehicles, fixed roadway characteristics, pedestrian and traffic streams) singly or jointly influence the free flow speed. This paper, therefore, presents the outcome of the quantitative evaluation of the influence of these factors on the free flow speed on an arterial in a medium-sized urban settlement in Nigeria. Instantaneous speeds of forty test vehicles were observed at lull periods on the 7.1km-Offa Garage-Emir’s Road, Ilorin, with simultaneous collection of data on drivers’ and vehicle ages, passenger occupancy, roadside parked vehicles and businesses. The geometric properties of the arterial were earlier established and segmented to four uniform sections. Result of computations using the category and statistical analysis show that the environment, pedestrian and roadway geometry have negative influences on the free flow speed. This can be confirmed by the poor relationship between free flow speed and these factors, with R2 values of 14.9-55%, and lower average free flow speed of commercial saloon cars on wet pavement than on dry pavement, with 12% percentage reduction. Adoption of design and analysis of traffic stream in Ilorin and other urban settlements in Nigeria is, therefore, recommended.Item Geoinformatics Approach to Water Allocation Planning and Prognostic Scenarios Sustainability: Case Study of Lower Benue River Basin, Nigeria(Springer, Cham, 2020) Abdulmalik, Z.; Salami, A.W; Bilewu, S.O; Ayanshola, A.M.; Amoo, O.T.; Abdultaofeek, A.; Agbedabi, I.E.Water allocation planning in an equitable and sustainable way is intrinsically complex. This study proposes a water resource allocation system using an integrated Soil and Water Assessment Tool and Water Evaluation and Planning tool (SWAT-WEAP) model for hydrological simulation and prognostic scenarios sustainability prediction. The study explores the use of Digital Elevation Model (DEM), soil and land raster image in deriving physiographic information for land degradation impact assessment, quantification of optimal water allocation and generation of minimum ecosystem water requirement. Consequently, the SWAT quantifies the catchment water yield before been allocated optimally based on percentage dependable flow rates of 70% and 85% reliability flow regime at Makurdi, Nigeria discharge station. The WEAP model assesses the water resources utilization following scenarios adaptation by riparian users. Both models performed satisfactorily for streamflow and water yield prediction and resource sharing both in the calibration and validation phases with a correlation coefficient (R2) of 0.57–0.74 and root squared error (RSR) of 0.66–0.82. The results show how drainage network, channel length, drainage boundary, slope, and sub-catchment geometric properties demonstrate Geographic Information Systems (GIS) utility in morphoclimatic impacts assessment as a data management, scenario analysis, and decision support tool in water management for the Lower Benue River Basin, Nigeria. Planners and decision-makers need to consider several integrated plans as alternatives to adapting to climate change impacts and anthropogenic human activities in resolving the unmet demands.Item Groundwater quality assessment near a Nigerian dumpsite(African Journals Online, 2017) Mokuolu, O.A.; Jacob, S.O.; Ayanshola, A.M.Item Historical climate variability and water supply in Ilorin: Perceptions and predictions(Centre for Ilorin Studies (CILS), University of Ilorin, Ilorin, Nigeria, 2013) Aremu, A.S.; Salami, A.W; Ayanshola, A.M.Item Household Water Use Survey Methods: Challenges and Prospects(National Water Resources Capacity Building Network North Central regional Center (NWRCBNet_NC), University of Ilorin, Nigeria, 2010) Ayanshola, A.M.; Sule, B.F.Item The hydraulic design of irrigation channels for Ishapa, Kwara State, Nigeria(Department of Civil Engineering, University of Ilorin, Nigeria, 2010) Ajiboye, F.O.; Ayanshola, A.M.; Bilewu, S.O; Adeleke, O.O.; Salami, A.W.The artificial application of water to land to aid crop production has enabled man to increase his ability to produce food and cash crops. All – the – year round crop production is now possible instead of the previous restriction to rain fed agriculture. However, conserving water and delivery it to the fields in an efficient manner has continued to be a challenge. This work seeks to take advantage of a dam being constructed for water supply purposes at Isapa, Kwara State, Nigeria. The reservoir capacity is far too big for the water demand and therefore a large quantity of water will be available as excess. Incidentally, an expanse of fertile land exists in the immediate downstream of the dam which is suitable for irrigation agriculture. A detailed topographical survey was carried out among other studies and a layout was prepared for the delivery of water to the fields by the use of irrigation channels. Channel parameters were established through the use various tested formulas found in literature and from experience. It was also concluded that the reservoir capacity is adequate for both water supply and irrigated farm.