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, …
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}, …
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 …
Acid mine drainage (AMD) is difficult to treat due to its physicochemical characteristics, such as high pH and high heavy metal concentrations, so it causes great harm to the environment and human health. If acid mine drainage is discharged arbitrarily without treatment, it will lead to a series of environmental problems and cause long-term …
Studies of the resource curse as it affects African states abound, yet few deal specifically with the experiences of South Africa. The inability of countries to convert natural resource wealth into income and improved development measures remains highly pertinent, and is especially apparent in Africa's largest economy.
The treatment of acid mine drainage for this study undertook an integrated process involving four (4) major steps that was demonstrated on a 20,000 LPD pilot treatment plant (Fig. 1). The pilot treatment plant was successfully used to test coal mine AMD. The plant consists of 4 stages as detailed in Table 1.
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 …
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 …
Acid Mine Drainage Treatment and Control: Remediation Methodologies, Mineral Beneficiation and Water Reclamation Strategies. Written By. Sivuyisiwe …
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 …
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 …
The summarized treatment technologies for acid mine drainage mainly include neutralization, sulfidization, constructed wetland method, adsorption method, …
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
@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. …
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 …
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.
In addition to known negative environmental impacts, acid mine drainage (AMD) contaminates freshwater resources, limiting the availability of clean water in mining regions. AMD is characterized by high elemental and sulphate concentrations and low pH.
Dear Colleagues, Contamination of different spheres of the environment with acid mine drainage (AMD) has been a worrisome issue of concern to national, regional, …
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 …
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 ...
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 ...
Acid mine Drainage (AMD) is a low pH, sulphate and heavy metal rich leachate that is produced from oxidation of sulphide bearing minerals commonly found in the host rocks of some mineral ores.
Contamination of different spheres of the environment with acid mine drainage (AMD) has been a worrisome issue of concern to national, regional, and …
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 …
@article{Sebogodi2020BeneficiationOP, title={Beneficiation of pulp mill waste green liquor dregs: Applications in treatment of acid mine drainage as new disposal solution in South Africa}, author={Keolebogile R. Sebogodi and Jonas K. Johakimu and Bishop B. Sithole}, journal={Journal of Cleaner Production}, year={2020}, volume={246}, pages ...
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 …
Environmental Science. Water. 2022. Acid mine drainage (AMD) is a typical type of pollution originating from complex oxidation interactions that occur under ambient …
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 ...
The present study aims to develop a low-cost and sustainable composite material from solid waste to efficiently treat acid mine drainage (AMD). A modified reactor was used to produce the biochar-CaO composite from solid waste, which was characterized using XRD and SEM to determine the crystal structure, size, and surface morphology. …
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 …