Geochemistry and mineralogy of auriferous tailings deposits
In this work, gold mining tailings were studied in order to identify their value through the use of characterization and geostatistical tools.Bissacot, L.; Ciminelli, V.; Logsdon, M. Arsenic Mobility under a Neutral Mine Drainage Environment in a Gold-Mine Tailings Mineralogical and Geochemical Characterization
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Geosciences Free Full-Text Recycling and Reuse
In this scenario, restoration techniques from mining tailings have become increasingly discussed among scholars due to their potential to offer benefits towards reducing tailing levels, thereby reducing We investigated the recovery potential and separation process for gold, feldspar, and quartz from tailings samples collected from the Jinqu gold mine in Henan province, China. The sequence of the Comprehensive Utilization of Tailings in Quartz
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Valorisation of mine waste ScienceDirect
For example, the Witwatersrand gold mine tailings contain economically viable concentrations of gold, uranium and rare earth elements, the latter of which has Mineral reactivity, such as sulfide oxidation and carbonate dissolution, leads to several changes within mine tailings in terms of their physical, mineralogical, and Role of secondary minerals in the acid generating potential
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Tailings microbial community profile and
Introduction In a circular economy concept where over 300 million tons of quarrying and mining wastes are produced annually 1, those are a valuable resource, supplying not only the demand for...From an environmental perspective, one of the most serious challenges with abandoned sites is the continual production of acid mine drainage (AMD), which occurs Desulfurization of aged gold-bearing mine tailings
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Production of gold mine tailings based concrete pavers by
The GMT used in this study are the tailings from the artisanal sector of eastern DR Congo in the Province of South Kivu in the Misisi mining area (Fig. 1 a).The In Peru, socio-environmental conflicts related to the development of mining-metallurgical processes and the responsible disposal of mine tailings have become central issues for accepting mining projects, especially regarding building relationships of trust with the communities. This condition has prompted the Peruvian mining industry to Experiences of Underground Mine Backfilling Using Mine Tailings
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Comprehensive Utilization of Tailings in Quartz
The aim of this study was to develop a comprehensive technology for the utilization of tailings from quartz vein-hosted gold deposits. We investigated the recovery potential and separation process A gold process plant tailings dam was characterized for surface water and solids tailings up to 2 m deep. Information was obtained using integrated hydrochemical, geochemical, and mineralogical techniques. Moreover, it supported preliminary metallurgical testing and a more detailed view of the loss of Au, the main product of this operation.Geoenvironmental Study of Gold Mining Tailings in a
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Geochemistry and mineralogy of auriferous tailings deposits
In addition to these reviews and methodologies, the state-of-the-art shows success in recovering gold from mining tailings through different procedures 6, 34, 40 42. Nevertheless, dams and tailings deposits have environmental impact due the potentially hazardous substances they contain 43. In other words, the economic potential of the Desulfurization by flotation produces sulfide-lean tailings, which can be used as cover materials, and sulfide-rich concentrates, which may contain valuable sulfide-associated metals such as gold. Because unreclaimed, aged tailings are often at advanced stages of the weathering process the surfaces of sulfide minerals are usually Desulfurization of aged gold-bearing mine tailings
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Mineralogical and Geochemical Characterization of Gold Mining Tailings
For more than 30 years, sulfide gold ores were treated in metallurgic plants located in Nova Lima, Minas Gerais, Brazil, and accumulated in the Cocoruto tailings dam. Both flotation and leaching tailings from a deactivated circuit, as well as roasted and leaching tailings from an ongoing plant, were studied for their acid mine drainage Indexes of academic publications in areas of knowledge related to tailings in mining in the world between 1990 -2022. Data source: Scopus. Evolution over time of tailing management practices.(PDF) Recycling strategies of mine tailing, and its technical
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Bioremediation techniques for the treatment of mine tailings
Mine tailings (MTs) are the materials dumped on a mining site after mineral extraction, containing scattered traces of residual minerals, dug-up soils, and a disturbed ecosystem. Abandoned and untreated MT can pose threats to the surrounding ecosystem due to the presence of various primary and secondary toxic components, 2.1. Process of Extracting Gold from Sulphide Minerals and Generation of Mining Tailings Conventional cyanide tank leaching methods are used on gold ores with adequate grade (gold content per ton) and tonnage (amount of ore available for leaching) to justify design complexity and higher capital cost.Environmental Impact Assessment of Mine Tailings Spill
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Chemical characteristics and acid drainage assessment of mine tailings
Acid Mine Drainage (AMD) is a great concern in many abandoned mines because of its adverse effect on the environment. In mining processes, many kinds of wastes are produced. These wastes may become eventually sources of environmental degradation. The focus of this study is the geochemical characterization of the end The discharge of tailings and waste rock from a mine/mill operation produces a potential source of contamination to . Acid generation. One of the most common potential contaminants in many mining operations, including many gold ores, may be the presence of appreciable sulphides (Ritcey, 1989).Tailings management in gold plants ScienceDirect
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From Tailings to Treasure? Miners Make Money
Mintails, a mine tailings processor, has developed new technology to process 350,000 tons of slimes from its extensive tailings resources. It expects to recover 58 kg of gold per month, and has In this context, the optimization of the process parameters is important to develop a process flowsheet for successful desulfurization of mine tailings to prevent CMD generation. An efficient option is to adopt a modeling technique to predict desulfurization performance and to solve for maximum sulfur mineral recovery.Feasibility of reprocessing gold tailings: Integrated
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Cyanide and removal options from effluents in gold mining
The Cyanide Code is being implemented at 133 gold mines including companies that collectively produce approximately 60% of the world’s commercially-mined gold, 20 cyanide production and repackaging facilities and 105 transport operations in 48 countries throughout the world; and 173 of these already have been certified in For example, the Witwatersrand gold mine tailings contain economically viable concentrations of gold, uranium and rare earth elements, the latter of which has become increasingly critical globally due to their key role in modern electronics, renewable energy generation and storage, aerospace, automotive and defence (e.g., European Valorisation of mine waste ScienceDirect
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Sustainability Free Full-Text In-Pit Disposal of Mine Tailings
In the next decades many of the old tailings storage facilities (TSFs) could be re-processed if one considers the prices of metals, new uses of metals which today are not valuable, and the application of new, more efficient metallurgical technologies. In this context, in-pit disposal of mine tailings (IPDMT) is an attractive alternative to be used as historic gold tailings dams in the Witwatersrand area of South Africa is being investigated. The objective is to recover uranium and residual gold from the tailings, as well as to oxidize the sulphides to eliminate long term environmental liabilities associated with acid mine drainage. The tailings from the re-processing plant will be re-RE-PROCESSING GOLD TAILINGS IN SOUTH AFRICA
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IJERPH Free Full-Text Heavy Metal Pollution from Gold Mines
Mining activities can lead to the generation of large quantities of heavy metal laden wastes which are released in an uncontrolled manner, causing widespread contamination of the ecosystem. Though some heavy metals classified as essential are important for normal life physiological processes, higher concentrations above stipulated 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 Minerals Free Full-Text Gold Mine Tailings: A Potential Source
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Development of ECO-UHPC utilizing gold mine tailings as
Results suggest that UHPCs, made with up to 80% replacement of quartz sand by the tailings, exhibit compressive strengths comparable to or higher than that of the UHPC with 100% quartz sand. 28-day strength greater than 120 MPa is achievable up to 100% replacement. The water absorptions and the initial rate of absorptions of UHPCs
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