History | Sibanye-Stillwater
Three more significant transactions were concluded over the next two years beginning with the purchase of a 38.05% stake in DRDGOLD Limited, a world leader in the retreatment of gold tailings, in July 2018. With this deal, Sibanye-Stillwater successfully established an industry-leading surface mining tailings retreatment partnership.
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DRDGold: South Africa's largest tailings project kicks into first gear
DRDGold has embarked on the first phase of what will be one of the largest tailings recovery operations in South Africa. According to CEO, Niel Pretorius, the tailings retreatment facility will bring additional cash flow into the business while delivering massive environmental and sustainability benefits to the larger West Rand. "On 1 August ...
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Environmental Impacts of Gold Mining—With Special Reference …
Gold mining has serious negative environmental impacts, especially due to pollution emanating from tailings storage facilities (TSFs, tailings dams, slimes dams). …
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Human exposure to uranium in South African gold mining areas …
At many South African gold mines, the ore extracted contains not only gold but also considerable amounts of uranium (U), which is brought to the surface inadvertently. Mine waste in hydraulically generated deposits (locally called "tailings dams") cover about 400 km 2, mostly in regions that, through mining, developed into densely ...
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Human exposure to uranium in South African gold mining areas …
Uranium (U) measurements in water, soil, and food related to gold mining activities in populated areas in Gauteng Province, South Africa, suggest the possibility of exposure levels that may lead to adverse health consequences, including cancer. Theoretical considerations on pathways of human uptake of significant exposures are …
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Re-Processing Gold Tailings in South Africa
The technical and economic feasibility or re-processing hundreds of millions of tons of tailings in a number of historic gold tailings dams in the Witwatersrand area of South Africa is being investigated. The objective is to recover uranium and residual gold from the tailings, as well as to oxidize the sulphides to eliminate long term ...
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As gold demand rises, South Africa has opportunity to recover …
"In South Africa, we've got 800-million tons of gold tailings that contain approximately 30-million ounces of recoverable gold, equivalent to six tier 1 gold …
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Issues at Operating Uranium Mines and Mills
The company currently produces uranium as a byproduct of gold mining at its Great Noligwa mine in South Africa and expects to boost output when its Moab Khotsong mine opens. The company is also studying whether to upgrade a processing plant so that it can process ore from the Kopanang dump, Lenahan said. (Business Report April 4, 2006)
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Ecologies of Gold: Mining Landscapes of Johannesburg
In 2001, the Gold Reef City developers built a casino and, as a condition of the casino license, an adjacent Apartheid Museum, which is now the pre-eminent museum documenting 20th-century South Africa history. [Photo by Andrew Watkins] Mining operations in South Africa involve a series of complicated land-right relationships.
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The environmental impact of gold mine tailings footprints in the
Gold mining in South Africa resulted in vast volumes of tailings, which have been deposited in impoundments. Poor management of most of the tailings dams resulted in …
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South Africa Tailings Failure Shows Need for Stronger Guidelines
Brendan McLaughlin, bmclaughlin@earthworks, +1 (206) 892-8832. BACKGROUND: On the morning of September 11, a tailings dam collapsed at the closed Jagersfontein diamond mine in Free State, South Africa. Local news reports the flood of mine waste killed at least three people, and injured 40. The failure swept away houses, …
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Contamination of groundwater by potential harmful elements from gold
Mining of gold in the Welkom and ia areas of the Free State Province in South Africa has produced numerous gold mine tailings, which contain a variety of contaminants. The extent of contamination of groundwater in the area was studied by measuring several water quality indicators at eight sampling sites, and within three …
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How waste from the mining industry has perpetuated apartheid …
Persistent problems. As Hecht shows, the same people apartheid oppressed and profited from bear the costs of the nation's mining debris: poor, Black South Africans living on the economic margins ...
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Re-Processing Gold Tailings in South Africa
The South African gold and uranium producer, Gold Fields Mining SA (Pty) Limited, is developing a flowsheet to treat historic tailings as well as current arisings from their gold …
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Heavy Metal Pollution from Gold Mines: Environmental Effects …
In gold mine tailings, a higher concentration of 583 mg/kg was found by Matshusa et al. in South Africa. Bitala et al. [ 45 ] also reported concentrations as high as 11,200 mg/kg in Tanzania. Nickel exists in gold bearing ore as pyrrhotite (Fe (1−X) S), which can contain up to 5% Ni and pentlandite (FeNi)S 8 .
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Progresses in restoration of post-mining landscape in Africa
Mining alters the natural landscape and discharges large volumes of wastes that pose serious pollution hazards to the environment, to human health and to agriculture. As a result, the recent 2 decades have witnessed a global surge in research on post-mining landscape restoration, yielding a suite of techniques including physical, chemical, …
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Tailings Management Sustainability | Harmony
Along with the global gold mining industry, Harmony acknowledges that tailings and waste have the potential to be harmful to communities and the environment. Within our sphere of influence, we understand the imperative to proactively mitigate their associated risks. ... Our Approach. In South Africa, Harmony manages 21 operational, 10 re-mining ...
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Feasibility of tailings retreatment to unlock value and create
Chamber of Mines of South Africa. 2007. Guidelines for the rehabilitation of mined land. Johannesburg. pp. 3-12. [ Links ] Daniel, A. and Downing, B.W. 2011. Investigating the reprocessing of Carolin mine tailings. Proceedings of Tailings and Mine Waste 2011, Vancouver, Canada, 6-9 November.
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Mogale Gold tailings storage facilities, South Africa – update
Name of the Project Mogale Gold tailings storage facilities (TSFs). Location Near Krugersdorp, to the west of Johannesburg, in Gauteng, South Africa. Project Owner/s Pan African Resources. Project ...
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Dust Deposition Impacts at a Liquidated Gold Mine Village: …
The windy season brings numerous community complaints for gold mining companies situated in the Witwatersrand due to windblown dust from partially rehabilitated tailings storage facilities (TSFs). For communities encroaching onto TSFs, windblown dust is perceived as a health hazard and an environmental challenge. In a study conducted in …
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Acid mine drainage arising from gold mining activity in …
The Witwatersrand region of South Africa is famous for its gold production and a major conurbation, centred on Johannesburg, has developed as a result of mining activity. A study was undertaken of surface and ground water in a drainage system in this area. ... Contamination of groundwater by potential harmful elements from gold mine …
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Contamination of groundwater by potential harmful elements from gold
Mining of gold in the Welkom and ia areas of the Free State Province in South Africa has produced numerous gold mine tailings, which contain a variety of contaminants. The extent of contamination of groundwater in the area was studied by measuring several water quality indicators at eight sampling sites, and within three zones.
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Clean production of sustainable backfill material from waste gold
One of the widely applied solutions for solving environmental pollution caused by gold tailings and slag is backfilling. Backfilling was first realized and implemented in South African gold mines as support for underground stope and reinforcement pillars to reduce geological hazards (Tesarik et al., 2009).Many countries have started exploring …
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(PDF) Risk perceptions of dust and its impacts among
Mining is a major economic activity in many developing countries. In South Africa, gold mining has played a significant role in the development and sustenance of the country's economy, with both ...
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An underexploited invisible gold resource in the Archean
Most tailings reprocessing operations target a native gold fraction using re-milling and carbon-in-leach extraction; however, up to 50–70% of the remaining gold is still not recoverable and...
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The Toxic Landscape of Johannesburg's Gold Mines | WIRED
More than a century of gold mining has left towering piles of bleached mine waste, known as "tailings," all over Johannesburg's landscape. Discovery of gold in the region in 1886 led to the ...
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Environmental Impacts of Gold Mining With Special …
Extent of Gold Mining in South Africa and Its Contribution to Waste Production ... The vast majority of gold mine tailings are acidic, usually very strongly acidic [2,10–12].
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Environmental Impacts of Gold Mining With Special …
Studies on the environmental impacts of gold mining in South Africa often concentrate on areas close to TSFs, while impacts have been found over large areas and at significant …
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IJERPH | Free Full-Text | Heavy Metal Pollution from Gold Mines …
In gold mine tailings, a higher concentration of 583 mg/kg was found by Matshusa et al. in South Africa. Bitala et al. [ 45 ] also reported concentrations as high as 11,200 mg/kg in Tanzania. Nickel exists in gold bearing ore as pyrrhotite (Fe (1−X) S), which can contain up to 5% Ni and pentlandite (FeNi)S 8 .
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Mine Waste Leaves Toxic Legacies in South Africa
At the Witwatersrand gold fields, more than 120 mines have extracted over 116,00 tons of gold and uranium, leaving a legacy of more than 270 tailings facilities that cover approximately 400 km 2. …
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