grazing in gold mine tailings dumps in sa
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- grazing in gold mine tailings dumps in sa
Soil samples were collected within a 20 m radius of abandoned Au mine tailings dumps in three different areas in Krugersdorp located at 26° 7' 56" S and 27° 48' 13"E (Site 1), 26° 8' 34"S and 27° 48' 28"E (Site 2), and 26° 7' 40" S and 27° 48' 57"E (Site 3) (Fig 2). Gold mining in these sites had ceased more than a decade ago.
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RESEARCH ARTICLE . Perceptions of external costs of dust fallout from gold mine tailings: West Wits Basin . Mbalenhle Mpanza I; Elhadi Adam II; Raeesa Moolla III. I University of Johannesburg, Post Office Box 17011, Johannesburg, 2018,and School of Geography, Archaeology and Environmental Studies, University of the Witwatersrand, 55 …
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24 May 2022, 7:59am EDT. Mine Waste Leaves Toxic Legacies in South Africa - And International Launch of Tailings Report. Waste Rock and Tailings. Source: The Mine Tailings Working Group of South Africa – …
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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. ... (FeS 2) contained within mine tailings dumps, and has elevated concentrations …
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In South Africa, the gold mining industry has existed for over a century. As a result, mine tailings are littered everywhere, particularly in the Wonderfonteinspruit Catchment Area (WCA), posing a threat to local communities. ... (270 tailings dams and 380 mine residue dumps) containing 6 billion tonnes of pyrite tailings and 600,000 …
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South Africa, defunct gold tailings dumps occupy large areas of land, with more than 270 mine dumps covering an area of 400km2 having been identi˚ ed (Oelofse et al. 2010). Many of these tailings dumps are situated in close proximity to human settlements, and typically contain reactive minerals and toxic
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Abstract: This paper describes the rehabilitation status of a gold tailings storage facility (TSF) on the Witwatersrand, South Africa. The aim of the rehabilitation was to effect surface stability and dust control, rather than ecological restoration and closure. However, the contribution that this approach is making towards TSF rehabilitation needs to be …
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Gold mining generates large quantities of tailings waste. These tailings can have a significant negative impact on the surrounding environment, with concomitant effects on …
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Mining of minerals such as gold, copper, and platinum has been one of several activities sustaining the economy of South Africa. However, the mining sector has contributed significantly to environmental contamination through the improper disposal of mine tailings which covers vast areas of land. Therefore, this study utilised a vitrification process to …
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Gold mining is a major source of metal and metalloid emissions into the environment. Studies were carried out in Krugersdorp, South Africa, to evaluate the ecological and human health risks associated with exposure to metals and metalloids in mine tailings contaminated soils. Concentrations of arsenic (As), cadmium (Cd), …
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Soil contamination with heavy metals is a serious concern to food production and human health. The present study was conducted to evaluate the impact of tailings from an old mining site on heavy metal contamination of soil. Using a GPS to map out different sites around the tailing dam, soil samples were taken from under grassland at the …
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Gold mining is a major source of metal and metalloid emissions into the environment. Studies were carried out in Krugersdorp, South Africa, to evaluate the ecological and human health risks associated with exposure to metals and metalloids in mine tailings contaminated soils. Concentrations of arsen …
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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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From when gold mining started more than a century ago, until 2006, South Africa has been the largest producer of gold in the world [ 3, 4 ]. Cronje et al. (2013) [
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10,180,000,000. 8,850,000,000. Tailings are what is left over after mills separate the metal from the mined rock. The processed material "tailings" comes from the "tail" end of a mining mill and comprise fine particles mixed with water forming a slurry. Mining companies will store this waste in dams or ponds.
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Tailings retreatment represents the greatest contribution to recycling by Pan African. By reprocessing waste rock and tailings to extract gold left behind during the initial mining process, we effectively reduce our environmental footprint while rehabilitating our tailings dams. Tailings are processed at Pan African's two state-of-the-art ...
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Mine tailings are the waste material that remains after ... Tailings, other than perhaps waste rock dumps in some instances, generally have the single largest ... Gold 21% Iron 9% Coal 8% Phosphate 4% Lead – zinc 3% Nickel 2% Platinum Group Elements 1% Bauxite 1% Uranium <1%
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Witwatersrand in South Africa is home to the largest known gold reserves in the world, making the country one of the world leaders in gold mining (Hart 2014). However, gold mining has also resulted in the genera-tion of thousands of tailings dumps along the gold mining corridor from Nigel to Randfontein (Bobbins 2015).
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Mining of minerals such as gold, copper, and platinum has been one of several activities sustaining the economy of South Africa. However, the mining sector has contributed significantly to environmental contamination through the improper disposal of mine tailings which covers vast areas of land. Therefore, this study utilised a vitrification …
به خواندن ادامه دهیدThis study explores the possibility of reclaiming the tailings dump of the Louis Moore Mine in the Giyani Greenstone Belt, investigates potential hazards to communities in the …
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Unfortunately, the electrokinetic treatment of mine tailings was only able to remove a small fraction of the metals, so there is a risk of mobilization of the residual fraction in the future due to the slow but continuous transformation of the minerals in the mine dump, due to chemical reactions with atmospheric oxygen and biological induced ...
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Over a period of 90 years (1886 to 1976) gold was being actively mined from underground workings, which left a trail of mine dumps stretching along the length of the Main Reef. On coming to South Africa in 1975 I would often travel along the Main Reef Road, on a winter Saturday afternoon, to play an "away" game of rugby at ERPM …
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Johannesburg's mine dumps look strangely beautiful from a distance. Lustrously yellow in the sun, blazing red at dusk, their huge molehill shapes provide the city with its distinctive skyline ...
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Although mining plays a prominent role in the economy of South Africa, it is associated with many chemical hazards. Exposure to dust from mining can lead to many pathological effects depending on ...
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In the Blesbokspruit area of Ekuhurleni, South Africa, previous gold mining activities resulted in many tailings dump sites. 20 representative soil samples were used in describing the distribution of metals. The soils were very strongly acidic ranging from 3.86 to 4.34 with a low cation exchange capacity (CEC). Based on X-ray fluorescence (XRF) …
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Gold tailings dump of Fumani Mine was visible in two points located within the Village Mutititi and the copper tailings dump in one point. The tailings dump of Klein Letaba, Louis Moore and Fumani mines were all clearly visible in VPs KL-VP-02, LM-VP-02 and FM-VP-02, respectively. ... & Mathuthu, M. (2016). Heavy metal concentration in soil …
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Several commercially profitable enterprises have also been set up with the sole intention of retreating tailings dumps arising from South Africa's Witwatersrand …
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New technology allows it to recover up to 40% of the gold left in particle form in tailings. DRD Gold extracted 33,600 ounces of gold, worth nearly US$40 million, in the last quarter of 2013. Mintails, a mine …
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Several commercially profitable enterprises have also been set up to retreat tailings dumps from South Africa's Witwatersrand gold processing operations. The article explains that business need to determine the economic viability of their mineral assets, as well as the the quality of the tailings material, the grade variability, and ...
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In South Africa acid mine drainage, mainly from gold mine TSFs/tailings dams/slime dams, "remains one of the country's most serious environmental and socio-economic issues" [1]. The acidity forms ...
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2018 tailing dam wall collapse. Dust events have become common for the people living in the Cadia and Errowanbang valleys since March 2018, when a section of Newcrest Cadia's northern tailings dam ...
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