Browsing by Author "Mohammed Abdulrazaq Apalndo"

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    Prediction and Simulation of Kainji Hydropower Reservoir Operation in Nigeria
    (2022-04) Mohammed Abdulrazaq Apalndo; Sule Bolaji Fatai; Salami Adebayo Wahab; Adeogun Adeniyi Ganiyu; Ayansola Ayanniyi Mufutau; Oladeji Akinola Sunday
    Kainji hydropower reservoir streamflow was forecast from 2017 to 2050 using measures historical streamflow data and Markov model. The model was evaluated with statistical parameters. Various percentage of water stored in the reservoir as Ecological Flow Release (EFR) were used to simulate future generation taking hydropower equation and operational constraints into consideration. It was observed that the model forecast the sreamflow adequately with coefficient of determination (R2 ), Mean Absolute Error (MAE), Relative Bias (RB) and correlation coefficient (r) of: 0.98, 0.10, 0.002 and 0.99 respectively. Total simulated energy generation reduces as EFR percentage increases. The energy generation simulated is greater than the observed generated energy for the scenarios. The outcomes of this study can be applied to the Kainji hydropower operational management.
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    Simulation of Sediment Concentration, Nitrogen and Phosphorus Loads: Case Study of Landzu River Watershed, Nigeria
    (2021-11-27) Adeogun Adeniyi Ganiyu; Abdullahi .A.; Ganiyu Habeeb Oladimeji; Mohammed Abdulrazaq Apalndo
    Pollution of water bodies has been known over the years to have detrimental effect on human being, aquatic life, as well as the reduction in the quality and quantity of the irrigated crops. Different land management practices from agriculture, urbanization and waste disposal on the water ways through surface runoff has led many rivers to be excessively rich in nutrient and consequently resulting into water pollution. Therefore, simulation of hydrological processes of the watershed is critical to providing insight into the level of nutrients in water for better management of the watershed. This study utilized Soil and Water Assessment Tool (SWAT), a hydrological modelling tool interfaced with Geographical Information System (GIS) to predict sediment concentration, phosphorus and nitrogen loads downstream of Landzu River watershed, Niger state, Nigeria. The simulation was carried out for 30 hydrological years using relevant spatial and temporal data available for the watershed. Uncaliberated results generated by the model showed that the annual average sediment concentration of the watershed was predicted as 5055.28 mg/l/yr. Annual average organic phosphorus (PO4-P) was predicted as 75820 mg/ha/yr and organic nitrogen as 741379 Mg/ha/yr. Prioritization of the sediment concentration and Nutrients load revealed that Landzu River watershed was located in subbasin 93 of the entire watershed within the zone of low sediment concentration, severe zone of phosphorus load and moderate zone of nitrogen load. The outcome of this study could be adopted by appropriate stakeholders and relevant authorities for sustainable management of sediment and nutrient loadings in the watershed