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网页This study revealed that the ground water within the mining district is heavily contaminated and acidified as a result of oxidation of pyrite (FeS2) contained within mine tailings 网页2003年2月1日This study revealed that the ground water within the mining district is heavily contaminated and 网页Acid mine drainage is one of mining’s most serious threats to water. A mine draining acid can devastate rivers, streams, and aquatic life for hundreds, and under the “right” 网页2003年3月1日@misc{etde_20648767, title = {Acid mine drainage arising from gold mining activity in Johannesburg, South Africa and environs} author = {Naicker, K, 网页2014年1月1日Abstract and Figures. Acid mine drainage (AMD) is a well-known environmental problem arising from both working and abandoned mines. This process 网页2022年6月5日Acid mine drainage can release toxic levels of heavy metals into the environment. Learn about its causes, environmental impact, and possible solutions Acid 网页2003年3月1日DOI: 10.1016/S0269-7491(02)00281-6 Corpus ID: 13406140; Acid mine drainage arising from gold mining activity in Johannesburg, South Africa and environs. 网页2003年3月1日This study revealed that the ground water within the mining district is heavily contaminated and acidified as a result of oxidation of pyrite (FeS2) contained within mine tailings dumps, and has elevated concentrations of heavy metals. 网页2012年1月5日Scientists estimate the volume of acid mine drainage from abandoned mines in the Witwatersrand goldfields alone could reach 350 million liters per day, 网页2017年9月5日After all, gold mining has historically resulted in long-term, chronic environmental problems. Roșia Montană is big, but the threats posed by acid mine 网页2006年1月1日This stone describes Acid Mine Drainage (AMD) generation and its associated technical issues. As AMD is recognized as one of the more serious environmental problems in the mining industry, its causes, prediction and treatment have become the focus of a number of research initiatives commissioned by governments, the 网页2003年3月1日Ground water within the mining district is heavily contaminated and acidified. 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. 网页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. Soils were also analysed from a site within the mining district. 网页2017年9月13日In nearly all metal mines, and some coal mines, acid drainage occurs because of the oxidation of iron ore found alongside precious mineral deposits. 网页2014年1月1日Abstract and Figures. Acid mine drainage (AMD) is a well-known environmental problem arising from both working and abandoned mines. This process 网页2003年3月1日Acid mine drainage is recognized as one of the more serious environmental problems in the mining industry. Acid mine drainage is a major problem on coal and gold mines throughout the world and in Expand 124 Highly Influenced View 4 excerpts, cites background Save Alert 网页2014年12月1日Abstract and Figures. Abstract Acid mine drainage (AMD) is a well-known environmental problem arising from both working and abandoned mines. This process happens when minerals; especially sulphide 网页2021年9月13日Understanding the origin of acid mine drainage (AMD) in a closed mine and groundwater flow system around the mine aids in developing strategies for environmental protection and management. AMD has been continuously collected and neutralized at Osarizawa Mine, Akita Prefecture, Japan, since the mine was closed in 网页Wetlands are well known to be efficient at sequestering pollutants from contaminated water. We investigated metal accumulation in the peats of the Klip River, a natural wetland that has received contaminated water from gold mining operations in Johannesburg for over 130 years. Previous work conducted in the downstream portion identified the wetland as an 网页20 小时前This process can generate extremely acidic and toxic runoff, commonly referred to as acid-mine drainage. Recent research showed that single-cell microorganisms can dissolve pyrite without oxygen and that they can do so without generating acid. Citation: Bio-mining fool's gold (2023, March 15) retrieved 15 March 2023 from https: //sciencex 网页Similar problems were experienced in the gold mining industry as a result of exposure to silica-bearing dust, particularly in the early years of mining.2 But perhaps the most severe and insidious adverse legacy of the mining industry is acid mine drainage (AMD), especially that arising from coal and gold mining. 3 This problem has resulted 网页2006年1月1日Acid Mine Drainage Mining Environmental Chemical and biological treatment 1. Introduction The mining of certain minerals, including gold, copper, and nickel, is associated with acid drainage problems that can cause long-term impairment to waterways and biodiversity. 网页2017年9月5日After all, gold mining has historically resulted in long-term, chronic environmental problems. Roșia Montană is big, but the threats posed by acid mine 网页2022年11月1日The discharge volume of acid mine drainage in the area is approximately 202 million L/day, which can be available to supply water for the community after treatment. Acid mine drainage arising from gold mining activity in Johannesburg, South Africa and environs. Environ. Pollut. (2003) 网页2017年9月13日In nearly all metal mines, and some coal mines, acid drainage occurs because of the oxidation of iron ore found alongside precious mineral deposits. 网页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. Soils were also analysed from a site within the mining district. 网页2021年9月13日Understanding the origin of acid mine drainage (AMD) in a closed mine and groundwater flow system around the mine aids in developing strategies for environmental protection and management. AMD has been continuously collected and neutralized at Osarizawa Mine, Akita Prefecture, Japan, since the mine was closed in 网页2014年1月1日Abstract and Figures. Acid mine drainage (AMD) is a well-known environmental problem arising from both working and abandoned mines. This process 网页2014年12月1日Abstract and Figures. Abstract Acid mine drainage (AMD) is a well-known environmental problem arising from both working and abandoned mines. This process happens when minerals; especially sulphide 网页Wetlands are well known to be efficient at sequestering pollutants from contaminated water. We investigated metal accumulation in the peats of the Klip River, a natural wetland that has received contaminated water from gold mining operations in Johannesburg for over 130 years. Previous work conducted in the downstream portion identified the wetland as an 网页20 小时前This process can generate extremely acidic and toxic runoff, commonly referred to as acid-mine drainage. Recent research showed that single-cell microorganisms can dissolve pyrite without oxygen and that they can do so without generating acid. Citation: Bio-mining fool's gold (2023, March 15) retrieved 15 March 2023 from https: //sciencex 网页Similar problems were experienced in the gold mining industry as a result of exposure to silica-bearing dust, particularly in the early years of mining.2 But perhaps the most severe and insidious adverse legacy of the mining industry is acid mine drainage (AMD), especially that arising from coal and gold mining. 3 This problem has resulted 网页2013年9月5日And the acid mine drainage of course has extremely high levels of metals,” Mudd said. Anton said UNEP is well equipped to handle the situation due to experience in dealing with similar problems. 网页Acid mine drainage means water that is discharged from an area affected by mining exploration, mining, or reclamation, with a pH of less than 5.5 and in which total acidity exceeds total alkalinity as defined by the latest edition of standard methods for the examination of water and wastewater. Sample 1 Based on 1 documents 网页Acid Mine Drainage. Dirty gold mining often leads to a persistent problem known as acid mine drainage. The problem results when underground rock disturbed by 
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