One of the problems facing leather industries is to come up with an efficient way of reducing the organic pollutant loads of their wastewaters. This research dissertation was aimed at the preparation and application of ?-FeOOH and ?-FeOOH-SiO2-Al2O3 catalysts for tannery effluent treatment using Fenton oxidation process. Effluent at the point of di... Continue Reading
In Nigeria, there is a problem of inadequate electricity supply to the populace. A recognized reason for the energy poverty in the country is the poor handling of the electricity statistics provided by the National Electricity Regulatory Commission (Ajayi, 2006). Absence of good forecast is a dominant reason for the NERC‘s inability to manage the... Continue Reading
Several procedures are commonly used for water disinfection from bacteria. Unfortunately each procedure has its shortcomings. The most important shortcoming is the formation of disinfection by-products. Photodegradation of microorganisms using photocatalysts (such as ZnO) could be a good alternative. However, ZnO is a wide band gap (3.2 eV) semicon... Continue Reading
The perennial problem of petroleum products scarcity in Nigeria has instigated technocrats and scholars to take a critical look into the distribution system of petroleum products in the country. Seeing that other countries are exploiting the advantage of using railway transportation for distributing petroleum products this research project examines... Continue Reading
Frequent occurrence of pharmaceutical compounds in aquatic environments and drinking water has raised a concern about their potential effects on environment and human health. Advanced oxidation processes (AOPs) including heterogeneous photocatalysis have proved to be one of the most effective methods for water treatment. The coupling of TiO2 and Zn... Continue Reading
Heat treatment is one of the most important industrial finishing operations which helps in the improvement of mechanical properties such as hardness, tensile strength and impact strength of components being used in our day-to-day activities. A common method of achieving this is through quenching (agitated and static). An agitated quenching bath wit... Continue Reading
This study developedmethods to improve the efficiency and torque production of the single phase induction machine using a sinusoidal pulse width modulation (SPWM) control scheme. This research targets the capacitor-run single phase induction motor(CRSPIM) which is a large consumer of domestic and industrial power supply with the goal of improving i... Continue Reading
This research work presents the development of a Modified Link Budget for Low Earth Orbiting (LEO)-Based Land Mobile Satellite Communications System operating at Ku, K and Ka frequency bands by taking into cognizance the effect of additional loss due to Doppler frequency shift. Doppler frequency shift poses the problem of receiving higher or lower ... Continue Reading
Conventionally, air injection has been used for recovery of heavy crude oil in the production field, but studies have shown that depletion of light crude oil in the reservoir leads to abandonment of such wells. Hence, this work studied the kinetics and combustion of light crude oil in-situ the reservoir to understand their potentials for high-press... Continue Reading
The studies on oils in general have a significant role to play in the well being of mankind. In this research work, Moringa oleifera oil and castor oil were both extracted from their seeds using mechanical press method. Moringa oleifera oil and castor oil were blended in various proportions and used in preparing soap samples which were subsequently... Continue Reading
Engineers are often faced with the problem of constructing on black cotton soils, because of their unsuitable behaviour for construction.The preliminary investigation conducted on the natural black cotton soil collected fromDeba, Deba Local Government Area of Gombe State shows that it falls under A-7-6(16) AASHTO classification and CL according to ... Continue Reading
This research investigated the synergistic effects of Moringa oleifera seed cake extract and Opuntia stricta(cactus) mucilage in surface water purification. The synergistic effects of the two coagulants on turbidity, conductivity, total dissolved solid(TDS), pH, chemical oxygen demand (COD),biological oxygen demand (BOD) and bacteria (E.coli)were s... Continue Reading
The need to assess the heavy metals uptake by vegetables cultivated and irrigated with wastewater along the watercourse of a stream, have led to a controlled field experiments in Zaria Metropolis. Five heavy metals; Cadmium (Cd), Chromium (Cr), Lead (Pb), Manganese (Mn) and Zinc (Zn) were determined using the Atomic Absorption Spectrophotometer (AA... Continue Reading
This research work was centered on optimizing the Fluxgate Magnetometer Sensor (FMS)at reduced noise level and enhanced sensitivity. The FMS was developed using Manganese Zinc (MnZn) ferrite alloy different from the usual permalloy and amorphous alloy materials. The developed FMS using MnZn ferrite achieved reduced sensor dimensions with high sensi... Continue Reading
The performance of photovoltaic (PV) module is dependent on shading conditions of the cells. This research work is aimed at developing an improved PV-model considering the various degree of shading on PV-cells connected in a PV-module. This is based on modelling the different degrees of shading of cells in a module into the general model by introdu... Continue Reading