Application of Earth ion Exchange Technology to Convert Acid Mine Drainage from Kilbarchan Colliery into Saleable Products
Pilot scale ion exchange trial on acid drainage pumped from a closed colliery in KwaZulu-Natal, for mine water managers weighing alternatives to reverse osmosis.
Ion exchange treatment of acid mine drainage from a closed KwaZulu-Natal colliery was piloted and shown to give effluent free processing, converting the salts into saleable products rather than sludge and brine. Reverse osmosis had previously produced water of discharge standard but left both. Combined flow from the two mine compartments averaged 4.6 megalitres a day.
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Real-time Plant Efficiency Measurement
2002
Assessment of the measurement and control equipment available to coal preparation plants, with recommendations for plant metallurgists on which instruments to add first.
What this report foundNo single method gives a continuous, real time report on how a coal preparation plant is performing.
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200230 pages
No single method gives a continuous, real time report on how a coal preparation plant is performing. Mass meters converted to yield values, on-line ash and moisture monitors, load cell chutes and automatic medium density control together supply most of what is needed. Measuring discard and slimes tonnages, particularly slimes disposal, remains the weakest point in plant accounting.
Predicting the Environmental Impact and Sustainability of Irrigation With Coal Mine Water
2006
Commercial scale field trials and modelling of centre pivot irrigation with gypsiferous and sodium sulphate mine water, covering crop, soil and aquifer effects for mines and regulators.
What this report foundIrrigation with calcium and sulphate rich mine water proved feasible and sustainable over eight years at a Mpumalanga colliery, with no significant impact on...
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Irrigation with calcium and sulphate rich mine water proved feasible and sustainable over eight years at a Mpumalanga colliery, with no significant impact on soil, surface water or groundwater. Sugarbeans, wheat, maize, potatoes and pastures were grown on a commercial scale. High calcium and magnesium suppressed potassium uptake, and waterlogging from poor site selection was the main problem.