Coaltech Research Association

Human and Social Issues Influencing the Incorporation of Women Into the Mining Workforce

by Ashworth George, Molapo Matśeliso, Molefe Nthabiseng, Schutte Schu & Zitha Malmsey | December 2004

R1500,00

Description

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Application of Earth ion Exchange Technology to Convert Acid Mine Drainage from Kilbarchan Colliery into Saleable Products

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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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EARTH

What this report found

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.

Review of Current and Expected Underground Coal Mining Methods and an Evaluation of the Best Practices Associated with These

André William Dougall

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Review of underground coal production systems in South Africa set against practice in Australia, China and the United States, with guidance on equipment choice and section planning.

What this report foundSouth African underground sections average about 60 000 t a month, against 130 000 to 160 000 t for single pass bolter miner units on continuous haulage, while...

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André William Dougall

What this report found

South African underground sections average about 60 000 t a month, against 130 000 to 160 000 t for single pass bolter miner units on continuous haulage, while the better sections target 1.4 to 1.6 Mt a year. Australian longwalls deliver 5 to 7 Mt a year from one face, compared with 3 to 5 Mt at the two local wall operations.

Evaluation of Three Native Grass Species and a Tree Species for Coal Mine Rehabilitation

Martin Platt

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Field trials established on prepared topsoil at three Mpumalanga Highveld collieries and measured to 2007, covering survival, cover, biomass and tree growth, for rehabilitation planners.

What this report foundCynodon dactylon outperformed Themeda triandra and Hyparrhenia hirta, reaching 100 per cent survival and cover at all three trial sites by 2007 with or without...

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Martin Platt

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Cynodon dactylon outperformed Themeda triandra and Hyparrhenia hirta, reaching 100 per cent survival and cover at all three trial sites by 2007 with or without fertiliser. Acacia sieberana reached 97 per cent survival at Kleinkopje Colliery but grew poorly at Optimum and Syferfontein. Planting plugs suits slopes too steep for a planter machine and buffers against pasture grass intrusion.

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