R1500,00
Description
The study assessed the feasibility of establishing a 500 kW thermal Circulating Fluidised Bed (CFB) combustion test facility to evaluate the technology under South African conditions. It found that the proposed facility is technically feasible, with Eskom Rosherville identified as the preferred site, and provides a foundation for progressing to the next phase of detailed engineering, procurement, construction and commissioning.
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Coal Washability Using Coal Petrography
2019
Summary of postgraduate work validating washability prediction for southern African coals by image analysis and tomography, written for geologists, metallurgists and mining engineers valuing a deposit.
What this report foundA single float sink test destroys the sample and gives one deterministic answer, so it cannot show how washability changes with particle size distribution.
R1500,00
A single float sink test destroys the sample and gives one deterministic answer, so it cannot show how washability changes with particle size distribution. Simulating washability from petrographic images and tomography allows many size distributions to be tested statistically from one sample. Running simulation alongside float sink work during exploration lets the prediction error of each be compared.
An Environmental Management Accounting Model for the South African Mining Industry
2008
Doctoral work comparing environmental cost practice at four South African mines and building a model from it, for environmental managers and finance staff in mining companies.
What this report foundConventional cost accounting at the mines studied could not report on physical structure or materials flow, so environmental costs such as water, energy and...
R1500,00
Conventional cost accounting at the mines studied could not report on physical structure or materials flow, so environmental costs such as water, energy and consumables stayed hidden and chances to cut them were lost. Four case studies across different commodities and mining methods showed the same limitations. An environmental management accounting model is proposed to identify and allocate those costs.
Coal Mine Acid Mine Drainage Treatment and Sludge Processing
2010
Laboratory evaluation of acid drainage treatment paired with thermal recovery of reagents from the resulting sludge, with capital and operating cost estimates for mine water planners.
What this report foundA modified alkaline barium calcium process was tested on coal mine acid drainage, using calcium hydroxide neutralisation, hydrogen sulphide metal removal and...
R1500,00
A modified alkaline barium calcium process was tested on coal mine acid drainage, using calcium hydroxide neutralisation, hydrogen sulphide metal removal and barium carbonate sulphate removal. Gypsum formation during water treatment fell by 80 per cent, cutting the sludge sent to costly downstream processing to a fifth. Temperature, reaction time, reagent ratios and feed particle size affected thermal treatment of the sludge.
Life sustainability of underground refuge bays of South African collieries
2023
An industry database of South African refuge bay designs set beside practice in Australia, Canada and the United Kingdom, prompted by recent underground emergencies.
What this report foundNo single global standard governs refuge bay design, and the collieries surveyed differ widely in construction, location, equipment and operating practice...
R1500,00
No single global standard governs refuge bay design, and the collieries surveyed differ widely in construction, location, equipment and operating practice, which made ranking them impractical. Areas needing attention were identified in design, construction and maintenance of the facilities that keep people alive until rescue, drawn against local law and overseas practice.