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Acid mine drainage: The toxic legacy of gold mining in South Africa. by Sara E. Pratt . Thursday, January 5, 2012. ..., South Africa, anthropologist Robert Broom discovered a 2.05-millionyear- old adult australopithecine skull, one of the oldest and most important hominid fossils ever found. ...
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Zhen'an County Gold Mining Co. Ltd. gold tailings dam failure during sixth upraising of dam ? ... gold recovery from old tailings tailings dam crest failure after overflow caused from heavy rain and melting snow ... Harmony, Merriespruit, South Africa Harmony Gold Mines gold Dam wall breach following heavy rain 600,000 m 3:
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The Witwatersrand gold–uranium ore contains an average of 3 wt% pyrite (Hall, 1986).Mineralogical data of 16 tailings samples throughout the Witwatersrand collected from surface to a depth of 80 cm (Rösner et al., 2001) indicate that the major constituents, at least at surface, are quartz, mica (unspecified) and chlorite with jarosite …
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Gold mining waste was estimated to account for 221 million tonnes or 47 % of all mineral waste produced in South Africa, making it the largest, single source of waste and pollution." "The South African government must introduce regulatory reforms that will ensure effective transparency and monitoring of tailings facilities," says Hassen ...
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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 …
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Tailings dams in South Africa pose serious risks to communities and ecosystems. ... Waste from gold mines constitutes the largest single source of waste and pollution in South Africa. Gold mining waste was estimated to account for 221 million tonnes or 47 % of all mineral waste produced in South Africa, making it the largest, …
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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 the escape of seepage, adversely affecting soils and water quality. Some tailings dams have been partially or completely reclaimed leaving contaminated footprints. These zones …
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The BTRP can claim to be one of South Africa's lowest cost gold producers with its AISC for the first half of the 2024 financial year coming in at just US$650 per ounce. ... The Mogale resource consists of a number of tailings dams and sand dumps – spread over a mining right area of 750 ha – that are the result of decades of mining …
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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 activities in South Africa resulted in contamination of residential environment with uranium-rich wastes from mine tailings. Health of the people living around the mine tailings could be affected by uranium exposure due to its hazardous chemotoxic and radiological properties.
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In 1994, the Merriespruit tailings dam in South Africa failed, releasing 600,000 m 3 of tailings and 90,000 m 3 of tailings water [81, 117 – 119]. The tailings dam broke after a few hours of thundershowers . It is worth mentioning that this tailings pond is basically an upstream structure with less freeboard length and less reservoir area.
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Bafokeng tailings dam, South Africa: 12 people died and released more than 30 million tons of tailings: 13: 1976: Zletovo mine No. 4 tailings dam, Yugoslav: Released 300,000 m 3 of tailings, the ecological environment was seriously polluted: 14: 1978: Corsyn Consolidated Mines gold-tailings dam, Zimbabwe: 1 people died and …
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from tailings dams in the Witwatersrand gold mining area {South Africa) Frank Winde, Abraham Barend de Villiers Potchefstroom University (South Africa) Abstract. A major problern in the field of environmental contamination by ura nium in South Africa is the lack of a synoptic overview of the nature and extent of the problem.
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As a historic gold mining area, the City of Benoni has numerous water bodies close to major tailings dams and mine dumps. Here we assess spatial patterns in the sediment geochemistry of five dams and four natural pans within a 5-km radius of the core mining area to determine the degree of contamination7 by mining-associated …
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