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A first-order, consecutive, two-stage reaction model for the reduction of cr2o3 from slag was developed. The model was applied to the results obtained by studying the effect of various parameters on the rate of reduction of cr2o3 from a CaO-SiO2-Al2o3 slag, by carbon dissolved in molten iron, at...

Water hyacinth is, after eutrophication, the largest threat to waterways, lakes and dams throughout Africa. The aim of this study was to develop a procedure for monitoring the spread of water hyacinth on Lake Kariba using Remote Sensing and Geographic information System. The spread of water...

Recent developments in the design of variable-speed drives have been aimed at the control of a standard squirrel cage induction motor because of its many attractive features including robustness, reliability and low maintenance requirements. This dissertation demonstrates the design of a drive...

This research focused on solving the problems of application access from multiple file servers in a Novell network that caters for a large user community. The application access technique discussed in this dissertation is a step towards creating a computer network system, called a Virtual Machine...

This dissertation describes an investigation carried out at Baluba Mine to assess the quality of rock mass and support requirements in haulage drives developed in the -footwall quartzite -Formations. The rock mass o-F the -Footwall Formation is geotechnicallv quantified using the Modi-Fied Basic...

Procurement of consultants and contractors in the public construction sector is regulated in most countries. In Zambia, all public procurement is regulated by the Zambia National Tender Board Act No. 30 of 1982. Various procurement methods are used for the selection of consultants and contractors...

The poor management of wastewater causes loss of environmental quality. Biomethanation, a biogas-producing technique, as an attractive solution to the problem, was investigated. Biogas, a greenhouse gas, is a mixture of methane and carbon dioxide. While carbon dioxide is returned into the...

Combustion Efficiency Improvement in a Rotary Furnace using a Post Combustion Chamber. Luwaya Edwin. Department of Mechanical Engineering, University of Zambia.Geometric parameters, of a rotary furnace, necessary for the improvement of combustion efficiency are analysed using Computational Fluid...

The economic advancement of any country depends on its ability to add value (through manufacturing) to its available local raw material resources. Zambia for a long time has been exporting copper as a raw material and importing finished copper products. This economic situation deprives Zambia of...

Malawi is endowed with a variety of mineral resources. Predominant among these are gemstones, industrial minerals, construction mineral materials and fuel minerals such as coal. However, most of these are small deposits, amenable by small-scale mining (SSM). Therefore, the promotion and...