Treatment, Beneficiation, and Valorization of Acid Mine …
Contamination of different spheres of the environment with acid mine drainage (AMD) has been a worrisome issue of concern to national, regional, and …
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Contamination of different spheres of the environment with acid mine drainage (AMD) has been a worrisome issue of concern to national, regional, and …
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summary. 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. In mineral resource-rich Africa, this has emerged as one of the most daunting challenges of our time. South Africa has been bold in its approach to ...
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Treatment, Beneficiation, and Valorization of Acid Mine Drainage, Volume II. ... Contamination of different spheres of the environment with acid mine drainage (AMD) has been a worrisome issue of concern to national, regional, and international scientific communities alike. This is attributed to the magnitude of toxicological effects to living ...
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2. Acid mine drainage generation and negative environmental impacts. Acid mine drainage is generated when sulfide minerals in the mined rock or overburden are exposed to oxygen and water during the mining process. These sulfide minerals include but not limited to pyrite (FeS 2), its dimorph marcasite, and pyrrhotite (Fe 1-x S).
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Environmental Science. Water. 2022. Acid mine drainage (AMD) is a typical type of pollution originating from complex oxidation interactions that occur under ambient …
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The Legacy of Acid Mine Drainage in South Africa Download; XML; The Formation of Acid Mine Drainage Download; XML; Impact of Acid Mine Drainage on Water Resources in South Africa Download; XML; An Assessment of the Social Impact of Acid Mining Drainage on the West Rand, South Africa: Towards Responsive Mining and Sustainable …
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A treatment process for Acid mine drainage (AMD) using coal fly ash (CFA) was developed. AMD was treated with CFA as the alkaline agent at different CFA: AMD ratios and pH, electrical …
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DOI: 10.1016/S0008-4433(96)00038-9 Corpus ID: 98766538; Flotation in acid mine drainage control: Beneficiation of concentrate @article{Leppinen1997FlotationIA, title={Flotation in acid mine drainage control: Beneficiation of concentrate}, author={Jaakko Leppinen and P. T. Salonsaari and Veikko Palosaari}, …
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The release of untreated acid mine drainage (AMD) and municipal wastewater (MWW) is a major issue of environmental concern, both in the developed and developing world. ... Beneficiation of acid mine drainage (AMD): a viable option for the synthesis of goethite, hematite, magnetite, and gypsum – Gearing towards a circular …
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Dear Colleagues, Contamination of different spheres of the environment with acid mine drainage (AMD) has been a worrisome issue of concern to national, regional, …
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The formation of acid mine drainage (AMD), a highly acidic and metal-rich solution, is the biggest environmental concern associated with coal and mineral mining. Once produced, AMD can severely impact the surrounding ecosystem due to its acidity, metal toxicity, sedimentation and other deleterious properties. Hence, implementations …
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Mining activities are notorious for their environmental impact, with acid mine drainage (AMD) being among the most significant issues. Specifically, AMD has recently been a topical issue of prime ...
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Acid mine drainage is a global issue, causing environmental degradation in soils and contaminating water resources with sulfuric acid and heavy metals such as iron, zinc, arsenic, copper, and lead.Acid production is not easy to prevent or control whenever acid-generating rock is smashed and exposed to oxygen and the outside surroundings, …
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Acid mine drainage (AMD) generated from pyrite oxidation in sulfide mine tailings is a major geoenvironmental problem. This AMD is characterized by pH < 3.5 and high concentration of trace elements. Thus, is a prerequisite for sustainable stabilization and neutralization of acid-producing sulfide mine tailings. The use of agri …
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@article{Akinwekomi2020BeneficiationOA, title={Beneficiation of acid mine drainage (AMD): A viable option for the synthesis of goethite, hematite, magnetite, and gypsum – Gearing towards a circular economy concept}, author={Vhahangwele Akinwekomi and J. P. Maree and Vhahangwele Masindi and Caliphs Zvinowanda and Muhammad S. …
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In abandoned open-pit coal mines, surface water and groundwater form acidic waters with high concentrations of metal ions due to chemical interactions with ores such as pyrite, and the formation of acid mine drainage (AMD) is one of the major sources of pollution of world concern. For this reason, this paper reviews the formation …
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Acid Mine Drainage Treatment and Control: Remediation Methodologies, Mineral Beneficiation and Water Reclamation Strategies January 2024 DOI: 10.5772/intechopen.1003848
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Acid mine drainage (AMD) contains high concentrations of heavy metals and sulfates with strong acidity. AMD exists in several major coal-producing countries such as China, the United States, Canada, etc., and it poses significant threaten to the environment and human health owing to it exists in nature for a long time and continues …
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Osman, M. S. ; Foteinis, S. ; Mpenyana-Monyatsi, L. ; Chatzisymeon, E. Pollution of water resources by acid mine drainage (AMD) has been an issue of primary concern in …
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Coal Fly Ash Beneficiation - Treatment of Acid Mine Drainage with Coal Fly Ash 92 FA:AMD AMD 1:3 1:2.5 1:2 1:1.5 DW AF limits Species ave SD ave SD ave SD ave SD ave SD Irrigation Domestic
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Acid drainage (AD) is a biogeochemical process occurring with the oxidation of sulfide-bearing minerals, which generates an acidic solution enriched with sulfate, iron, aluminum, other salts and various heavy metals ( Jacobs et al., 2014 ). Acid drainage is both geogenic and anthropogenic in origin, yet greater concern lies in AD …
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Acid Mine Drainage (AMD) is a toxic wastewater stream formed when oxygenated water comes into contact with exposed mine rock surfaces containing sulphide minerals [1,2,3].The formation of AMD is most prominent in abandoned mines where water accumulates in mine shafts and pits allowing exposure to sulphide minerals [].The …
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Unfortunately, the industries generate large amounts of acid mine drainage (AMD) that originate from the mining activities. The AMD is formed when the 3% pyrite mineral found in the mine effluent dams and voids of gold and coal mines is oxidised upon exposure to water and oxygen resulting in the formation of sulphuric acid which dissolves and ...
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The electrocoagulation process occurs when the anode releases Al ions as an active coagulant into the solution to form floc, which binds contaminants and particles in acid mine wastewater. This could remove 99.95% of Fe in the case of wastewater from the iron ore beneficiation plant. However, until now, there are not many Al-Al electrodes …
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Treatment, Beneficiation, and Valorization of Acid Mine Drainage. ... In this study, the treatment of acid mine drainage (AMD) using vertically flowing wetland was explored. The wetland was enriched with Vetiveria zizanioides as a decontaminating media and soil as the substrate. Water was percolated through the substrate and the …
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Mining activities are notorious for their environmental impact, with acid mine drainage (AMD) being among the most significant issues. Specifically, AMD has recently been a topical issue of prime concern, primarily due to the magnitude of its environmental, ecotoxicological, and socioeconomic impacts.
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Beneficiation of pulp mill waste green liquor dregs: Applications in treatment of acid mine drainage as new disposal solution in South Africa Journal of Cleaner Production 10.1016/j.jclepro.2019.118979
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Semantic Scholar extracted view of "Assessing the sustainability of acid mine drainage (AMD) treatment in South Africa." by V. Masindi et al. ... Beneficiation of acid mine drainage (AMD): A viable option for the synthesis of goethite, hematite, magnetite, and gypsum – Gearing towards a circular economy concept ...
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The summarized treatment technologies for acid mine drainage mainly include neutralization, sulfidization, constructed wetland method, adsorption method, …
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Mine drainage forms from a chemical reaction between water and rocks containing sulfur-bearing minerals. The resulting waters become rich in sulfuric acid and dissolved iron. As the iron settles out of the water, it can form red, orange, or yellow sediments in the bottom of streams.
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Acid mine drainage induced by the mining industry causes environmental and economic issues. Acid mine drainage contains mainly metals such as Fe, Al, Cu, Ca, Mg, Mn and Zn. Preventing the formation of acid mine drainage has not been found feasible. As a consequence, remediation treatments have been developed during the …
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Highlights. •. The body of knowledge on AMD treatment, beneficiation, and valorisation was reviewed. •. Focus was placed on opportunities for introducing AMD treatment in circular economy. •. The state-of-the-art on relevant LCA studies was …
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Anawar, H.M. Impact of climate change on acid mine drainage generation and contaminant transport in water ecosystems of semi-arid and arid mining areas. Phys. Chem. Earth Parts A/B/C 2013, 58–60, 13–21. [Google Scholar] Acharya, B.S.; Kharel, G. Acid mine drainage from coal mining in the United States—An overview. J.
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