A Provisional Basinal Study of the Waterberg-karoo, South Africa
R1500,00
Description
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Soil Rehabilitation: Can Dung Beetles Improve Post-mining Land-use Options?
2018
Final report of a three year study on rehabilitated South African coal mine soils, testing an invertebrate based addition to conventional rehabilitation, for environmental managers and land use planners.
What this report foundAnts, termites, dung beetles and earthworms are known to improve soil health, but none had been deliberately applied as part of a mine reclamation strategy.
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Ants, termites, dung beetles and earthworms are known to improve soil health, but none had been deliberately applied as part of a mine reclamation strategy. Experimental and field scale studies asked whether dung beetles maintain their burial activity, and the soil services that follow, in soils typical of rehabilitated mine land, and set out recommendations for using them alongside existing methods.
Application of Earth ion Exchange Technology to Convert Acid Mine Drainage from Kilbarchan Colliery into Saleable Products
2010
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.
What this report foundIon exchange treatment of acid mine drainage from a closed KwaZulu-Natal colliery was piloted and shown to give effluent free processing, converting the salts...
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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.
Development of a Horizontal Winnower for the Beneficiation of Fine Coal
Proof of concept work on dry beneficiation of minus 6 mm coal, combining airflow modelling and simulation with a laboratory winnowing box, for plants short of process water.
What this report foundHorizontal air winnowing separated fine coal by particle size and density in laboratory experiments, supported by equation of motion modelling and...
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Horizontal air winnowing separated fine coal by particle size and density in laboratory experiments, supported by equation of motion modelling and computational fluid dynamics. Modelling indicated that a chamber 0.6 m high and 1 m long is sufficient to displace any minus 6 mm particle at air velocities of 10 to 30 m/s.
A manual for authorisation of pitlakes as a closure option for South African coal mines
2021
A practical guide for coal mines and their consultants, built on earlier water research on pitlake viability, with South African examples from the Highveld, Waterberg and KwaZulu-Natal coal fields.
What this report foundSets out the authorisation route for leaving a pitlake as a closure landform, covering water use licensing, environmental authorisation and the wider...
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Sets out the authorisation route for leaving a pitlake as a closure landform, covering water use licensing, environmental authorisation and the wider legislative process. There is no single application that grants approval, and the route is long and partly duplicated, so several applications are required.