Waste from gold mines is considered to constitute the largest single source of waste pollution in South Africa and contributes significantly to acid mine drainage, which remains one of the country ...
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Acid Mine Drainage (AMD) is generated when sulphide bearing minerals, often in the form of pyrite (which is iron-sulphide or FeS2 found inter alia in reefs mined for gold), are exposed to oxygen and water.
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THE REGULATION OF ACID MINE DRAINAGE IN SOUTH AFRICA: LAW AND GOVERNANCE PERSPECTIVES L Feris* LJ Kotzé** Acid drainage is one of the most serious and potentially enduring environmental problems for the mining industry. Left unchecked, it can result in such long-term water quality impacts that it could well be this industry's most harmful legacy.1
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Acid mine drainage (AMD) has received considerable coverage in the media of late and the number of short courses and workshops devoted to the topic has mushroomed. The current interest was prompted mainly by concern arising from the decanting of contaminated water from the old gold mines in the Krugersdorp area into the Cradle of Humankind.
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South African environmentalists have termed Acid Mine Drainage as the "single most significant threat to South Africa's environment" (Naidoo, 2009) and according to Dr Anthony Turton, formerly a scientist at the Council for Scientific and Industrial Research (CSIR) and the director of Touch Stone Resources—a company committed to ...
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This book addresses the significant environmental challenge of Acid Mine Drainage (AMD) in South Africa, stemming from a century of mining practices. It examines technological innovations and financing models for contaminated mine water treatment, highlighting the country's experience with AMD remediation as a critical lesson for other sub ...
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An overview of acid mine drainage in South Africa. Council . for Geoscience. 42 UN-W ater, 2013. Water security and the global water agenda. Analytical brief. 43 Hanlon, T.M., 2010. The impacts of ...
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The environmental sustainability of acid mine drainage (AMD) treatment at semi-industrial scale is examined by means of the life cycle assessment (LCA) methodology. An integrated process which includes magnesite, lime, soda ash and CO 2 bubbling treatment was employed to effectively treat, at semi-industrial scale, AMD originating from a coal mine in …
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South Africa is facing the increasing challenge of acid mine drainage (AMD) whose genesis is the country's mining history, which paid limited attention to ...
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What is Acid Mine Drainage (AMD), why is it such a serious threat to South Africa and more importantly WHY has been it been silenced and kept under wraps by the mining industry and South African government for so long? Acid mine …
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Acid Mine Drainage (AMD) occurs when polluted water decants from mines and flows over pyrite, which is commonly known as "fool's gold". When pyrite is exposed to oxygen and water, a …
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Leaching of heavy metals such as iron pyrite and radioactive uranium cause what is termed acid mine drainage. Acid mine drainage is a serious problem in the Gauteng province of South Africa as a result of over 130 years of Gold mining. …
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Acid mine drainage (AMD) is arguably one of the most serious environmental concerns in South Africa. AMD is a legacy left behind by abandoned, derelict and defunct mines, and is a …
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• The gold mining industry in South Africa (principally the Witwatersrand Goldfield) is in decline, but the post-closure decant of AMD is an enormous threat, and this could become worse if remedial activities are delayed or not implemented. Reference: CSIR. Briefing Note August 2009. Acid Mine Drainage in South Africa. Dr. Pat Manders.
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This study investigated the Zaalklapspruit valley bottom wetland in South Africa, an ecologically engineered site influenced by acid mine drainage (AMD) from a defunct coal mine upstream. Conducted in 2022, the research aimed to elucidate the dynamics of contaminant dispersal within this wetland, focusing on the sources, pathways, and receptors of metals and …
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Acid mine drainage has always been considered to be toxic to the environment. This paper highlights its potential role from a water resource perspective in alleviating water supply issues in the Witwatersrand gold mining region of South Africa.Relevant local and international literature on acid mine drainage (AMD) occurrence and treatment technologies …
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BN Aqua Solutions was created to alleviate water shortages facing the country by treating contaminated water from Municipalities, Boreholes, Perennial Streams and Acid Mine Drainage (AMD) to SANS 241 drinking stage.. The long-term …
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Due to mining activities and acid mine drainage (AMD), SO 4 –Ca-type groundwater with high total dissolved solids (TDS) and low pH values was mainly distributed in the mining areas. In the runoff area, carbonate neutralization and runoff rates were accelerated, while the groundwater TDS gradually decreased and the pH increased.
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South Africa is facing the increasing challenge of acid mine drainage (AMD) whose genesis is the country?s mining history, which paid limited attention to post-mining mine site...
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Acid Mine Drainage (AMD) is generated when sulphide bearing minerals, often in the form of pyrite (which is iron-sulphide or FeS2 found inter alia in reefs mined for gold), are exposed to oxygen and water. ... development of what is Gauteng …
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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. ... Acid mine drainage arising from gold mining activity in Johannesburg, South Africa and environs Environ Pollut. 2003;122(1):29-40. doi: 10.1016/s0269-7491(02)00281-6.
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Committee (IMC) on acid mine drainage (AMD), comprising the Ministers of Mineral Resources, Water Affairs and Science and Technology and the Minister in the ... extensively researched and studied globally and in South Africa. This has resulted in a sound but generic understanding of the process and the various components of the AMD
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Institutional linkages and acid mine drainage: The case of the Western basin in South Africa. Water Resources Development, 24 (3), 451–462. Article Google Scholar
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Takes a social science perspective on acid mine drainage (AMD) in South Africa in the context of sustainable socio-economic development; Investigates how definitional differences among interacting entities impact policy assessments, …
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Acid mine drainage arising from gold mining activity in Johannesburg, South Africa and environs. February 2003; Environmental Pollution 122(1):29-40;
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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. ... Distribution and mobilization of heavy metals at an acid mine drainage affected region in South China, a post-remediation study.
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The origin of acid mine drainage Acid mine drainage (also sometimes referred to as acid rock drainage) is a well-understood process2 and arises primarily when the mineral pyrite ('fool's gold' or iron disulphide) comes into contact with oxygenated water. The pyrite undergoes oxidation in a two-stage process, the
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South Africa (SA) is the 7th biggest coal producer in the world and contributed 231 Mt of the 8.6 Gt produced in 2022 (International Energy Agency, 2023).The main exploited coal resources are hosted in the Ecca Group of the Permian-aged Karoo Supergroup (Hancox, 2016).The majority of the 19 coalfields are in the Mpumalanga, Limpopo, and Free State …
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The origin of acid mine drainage. Acid mine drainage (also sometimes referred to as acid rock drainage) is a well-understood process 2 and arises primarily when the mineral pyrite ('fool's gold' or iron disulphide) comes into contact with oxygenated water. The pyrite undergoes oxidation in a two-stage process, the first producing sulphuric acid ...
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For more than a century, the mining sector has played a crucial role in the economic development of South Africa. However, it also causes immense harm to the country's people and environment. Gold and coal mining have serious implications for water management. The problem arises when contaminated water in the form of acid mine drainage (AMD) reaches the river …
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Finally, the seriousness of the acid mine drainage problem in South Africa has been acknowledged at ministerial level and an action plan has been outlined. Mine Water Management in the Witwatersrand Gold Fields with Special Emphasis on Acid Mine Drainage, Team of Experts report to the Inter-ministerial Committee (IMC) on Acid Mine Drainage ...
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Acid mine drainage (AMD) is the flow, or seepage, of polluted water from old mining areas. Depending on the area, the water may contain toxic heavy metals and radioactive particles. …
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The Witwatersrand is not the only region in South Africa where acid mine drainage is a problem, but it is currently the area of greatest concern. In 2002, near the town of Krugersdorp, acid mine drainage from an abandoned …
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PDF | Acid mine drainage (AMD) is a very acidic effluent containing high levels of sulphates, metals, sulphides, and salts. ... South African mines are amongst the largest in the world with a .
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For 140 years, gold mines in Johannesburg, South Africa have been leaking wastewater contaminated with heavy metals. The acid mine drainage from Johannesburg's estimated 278 abandoned mines and ...
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Acid mine drainage arising from gold mining activity in Johannesburg, South Africa and environs. Author links open overlay panel K Naicker a, E Cukrowska a, T.S McCarthy b. ... Journal of the South African Institute of Mining and Metallurgy, 86 (1986), pp. 481-504. View in Scopus Google Scholar.
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South Africa is facing the increasing challenge of acid mine drainage (AMD) whose genesis is the country?s mining history, which paid limited attention to post-mining mine site management.
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Acid mine drainage (AMD) has recently received wide coverage in the media, and as its potential impact on natural resources and human health and well-being become increasingly evident it is becoming a political issue. 2 The South African environment, including its water resources, soil and people, are now threatened by pollution stemming from ...
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South Africa is the home of major global mining operations, and the acid mine drainage (AMD) contribution has been attributed to abandoned mine sites and huge pyrite-bearing tailings from coal and gold mines. …
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Acid mine drainage is a direct result of the weathering of sulphide-bearing minerals during and after the mining of valuable minerals, such as coal and gold. ... Research and development partners, to date, include Exxaro, one of the largest black-empowered diversified mining companies in South Africa; South32, a globally diversified mining and ...
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