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How to handle mine tailings safely and sustainably?
Mining involves the processing of mined ore to separate valuable minerals, leaving behind huge volumes of waste tailings. Driven by mining volumes, globally generated tailings are estimated to ...
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Global-scale impact analysis of mine tailings dam failures: …
Mining is of great relevance to the global economy, but its activities are challenging due to socio-environmental impacts. In January 2019, an iron ore tailings dam collapsed in Brumadinho (Minas Gerais, Brazil) releasing 12 × 10 6 m 3 of tailings, causing human losses and devastation around 3.13 × 10 6 m 2 of a watershed.
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Advancing sustainable and circular mining through solid …
The mineralogical complexity and decreasing ore grades which result in mining deeper ore bodies also contribute to increasing tailings production – this call for more concerns in the mining industry, due to land use and environmental challenges (Jan et al., 2022). One of the main challenges faced by the mining industry is tailings …
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8.2: Mining and Ore Processing
The rest of the rock is known as tailings. It comes out of the concentrator as a wet slurry and is typically stored near to the mine, in most cases within a tailings pond. The tailings pond at the Volcanogenic Massive Sulphide copper-zinc-silver-gold Myra Falls Mine on Vancouver Island is shown on Figure 8.2.3.
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Mining shouldn't be a dirty word: Why tailings and mine …
Mine or mill "tailings" refer to the waste by-product remaining after extracting ore. As the quantity of ore diminishes in established mines, waste increases. The industry is faced with the dilemma of continuing to mine lower quality ore with increased waste production or seeking new mining sites, often in areas more difficult to access ...
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Original features of Vale's tailings dam may have been
New research out of ETH Zurich suggests that certain features of the tailings dam at Vale's Corrego do Feijao iron ore mine in Brumadinho, southeastern Brazil, may have been the cause of the ...
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Treatment And Utilization Of Gold Mine Tailings
What Are Gold Tailings. To be shortly saying, tailings are ground up rock minus the gold. The placer or rocks mined from underground which contains gold is called ore. The gold mining process involves crushing the ore into sand and dust to liberate and recover the gold. What's leftover is called tailings.
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Take two: why mine tailings are worth another look
On November 7, 2023, the US Geological Survey issued a press release announcing that it would invest US$2 million of Bipartisan funding with 14 states to study the potential for critical mineral resources in mine waste. The aim is to map locations of mine waste (i.e., tailings) and measure the potential for critical minerals that might exist …
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Recovering Iron from Iron Ore Tailings and Preparing …
Iron ore tailings (IOTs) are a form of solid waste produced during the beneficiation process of iron ore concentrate. In this paper, iron recovery from IOTs was studied at different points during a process involving pre-concentration followed by direct reduction and magnetic separation. Then, slag-tailing concrete composite admixtures …
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Solutions to Significantly Reduce Tailings Waste and Risks
Mechanical cutting is an example of a technology that enables the implementation of additional technologies such as ore sorting at the face, underground. ... to add serious acumen in many technology areas that the ICMM Initiative also deemed as having the greatest impact on tailings reduction. ReThink Mining projects currently …
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Catastrophic tailings dam failures and disaster risk disclosure
The catastrophic collapse in January 2019 of the tailings dam at the Córrego do Feijão iron ore mine in the town of Brumadinho in the Brazilian state of Minas Gerais is one of the most recent. ... Causes and environmental impact of the gold-tailings dam failure at Karamken, the Russian Far East. Eng. Geol., 245 (2018), pp. 236-247, 10.1016/j ...
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Mining technologies could capture 'billions of tonnes of …
Reducing 10% of a mine's tailings could be sufficient to offset the annual carbon emissions produced by a mining operation. Mining technologies could capture 'billions of tonnes of CO2 per ...
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Uranium Mining
More efficient plants are put in operation all the time. Thus, in late 2012, a new underground mine was commissioned for the first time in 20 years in Russia, at the largest domestic uranium mining site of Priargunsky Industrial Mining and Chemical Union' (Priargunsky), where uranium is mined by a shaft process.
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A review of circular economy strategies for mine tailings
Highlights. •. Finnish tailings contain considerable amounts of metals. •. Holistic circular economy approaches are needed to manage the waste streams. •. …
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Assessment of the use potential of iron ore tailings in the …
The iron ore tailings (IOT) used in this work were collected from four Class III high environmental risk iron ore tailings-dams [26]. These (Fig. A.1) were selected based on the associated social and environmental potential risks, as well as economic relevance, as described in the dams inventory of the Minas Gerais State [27]. All four …
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A Guide to the Management of Tailings Facilities, Version …
Changes in Version 3.1. Version 3.1 is an update to the third edition of A Guide to the Management of Tailings Facilities (the Tailings Guide), released in November 2017, to reflect the second edition of MAC's Developing an Operation, Maintenance, and Surveillance Manual for Tailings and Water Management Facilities (the OMS Guide), …
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Global Industry Standard on Tailings Management
The Global Tailings Review convened by the United Nations Environment Programme (UNEP), the Principles for Responsible Investment (PRI) and the International Council on Mining and Metals (ICMM) launched the Global Industry Standard on Tailings Management. The Standard was developed by a multi-disciplinary Expert …
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Finding New Life for Tailings: Sustainable Technology for …
Current and future social imbalances such as increasing metals demand for electromobility, need for CO 2-free electrical power, reduction of mine wastes, and declining supply of elemental sulfur from oil and gas production all can be compensated for by efficient recycling of tailings.Upgrading tailings into a pyrite concentrate allows for …
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Tailings Dams: Where Mining Waste is Stored Forever
Now imagine that pit filled with up to 10 billion tons of tailings — waste that's derived from mining — that will remain there forever. It's a reality that isn't exactly far-fetched.
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Barrick launches tailings reprocessing project at closed US gold mine
Mining firm Barrick has commissioned the tailings reprocessing project at the shuttered Golden Sunlight Mine in Jefferson County, Montana, US. Over the next decade, the new project is expected to provide tax revenue worth 'tens of millions of dollars' for the state while removing potential water pollution from the mine site.
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Ore Washing Machines Simplify Mining Operations
Our ore washing machine has a higher degree of cleaning, a more reasonable structural design, a large processing capacity, and a low functional …
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Environmental and human health risk assessment of soils in areas of ore
The patterns of the potentially toxic elements (PTEs: Cr, Fe, Ni, Cu, Zn, As, Mo, Pb, Hg) distribution in soils were studied together with the health risk assessment in the area of ore mineralization, past gold activity, and tailing effects of the Sarala gold-ore group located in the Republic of Khakassia, Russia. High PTE concentrations were found in …
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From Tailings to Treasure? A New Mother Lode
Thickened tailings can be mixed with cement and used in construction or as backfill in underground mines. Now, some mining …
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Analysis of mine waste by geocheimical and geophysical …
Integrated study of the Dyukov Log dump of sulfide-containing mine tailings of the Salair ore-processing plant (SOP) was performed using geophysical and …
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New approaches for extracting and recovering metals from mine tailings
Mineral tailings from two copper mines were bioleached under different conditions. • Greatest copper extraction was achieved at extremely low pH, at 45 °C and under oxidative/reductive conditions.. Copper present in tailings PLS was selectively precipitated as CuS by biogenic H 2 S.. Microbial communities were dominated by Sb. …
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The Reprocessing and Revalorization of Critical Minerals in Mine Tailings
Mine tailings, the byproduct of mining and mineral processing, are increasingly mass produced as a result of increased demand for metals and minerals as well as the advancement in technology that allows for the exploitation of lower-grade ores. Lower grades can increase the volume of tailings that may contain new gangue …
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Tailings potential: recovering metals from mine waste streams
Learn how mine tailings could provide a new source of metals and minerals for the energy transition, while also cleaning up the environment. Explore the challenges …
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Dewatering & processing tailings with centrifuges
The process water bound by the tailings remains unused. With modern dewatering solutions, mining residues can be treated economically and the process water that they contain can be recovered. This saves both space and cost and is environmentally friendly. In mining, the term tailings refers to fine-grained residues in the form of sludges.
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MANAGEMENT OF TAILINGS: PAST, PRESENT AND …
A report on the challenges and opportunities of tailings management in the mining industry, with a focus on technology and innovation. It examines the conventional …
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MANAGEMENT OF TAILINGS: PAST, PRESENT AND …
most readily achieved in new mining projects and hence change in tailings management for the mining industry as a whole will be generational. For context, this chapter first describes conventional tailings management, arguing that applying NPV accounting to tailings management supports the transportation of tailings as a slurry to a facility, with
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Prospects for Re-Processing Of Carbonate–Fluorite Ore Mill Tailings …
The authors describe studies into dressability of mill tailings from tailings pond of processing plant of Yaroslavsky Mining Company. It is found that the mill tailings contain 14.92% of CaF2, 13.16% of CaCO3 and 0.49% of Zn. The use of new compositions of modifiers in flotation of fluorite allows production of standard grade concentrates with …
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Take two: why mine tailings are worth another look
On November 7, 2023, the US Geological Survey issued a press release announcing that it would invest US$2 million of Bipartisan funding with 14 states to study …
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2024 Mining Terms Explained
Acidic precipitation - Snow and rain with a low pH caused by industrial gases released into the atmosphere.; Acidic rocks - Igneous rock with a high proportion of silica.; Acid mine drainage - Acidic run-off water from mine waste dumps and mill tailings ponds.; Adit - A horizontal opening into the side of a mountain or hill for access to a …
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Process effluents and mine tailings: sources, effects and
This article reviews the sources, effects and management of mine tailings, the process effluents generated in mineral processing plants. It also discusses the role …
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Is ore-sand the solution to the mining industry's …
Hundreds of workers sat at the canteen of Vale's Córrego do Feijão iron ore mine, nine kilometres northeast of the town of Brumadinho, in the state of Minas Gerais, Brazil. A loud crack shot …
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Feasibility of Iron Ore Tailings in Geopolymer Concrete for
HK, T, Hossiney N (2022) Alkali-activated bricks made with mining waste iron ore tailings. Case Stud Constr Mater 16:e00973. Google Scholar Thejas HK, Hossiney N (2022) A short review on environmental impacts and application of iron ore tailings in development of sustainable eco-friendly bricks. Mater Today: Proc 61:327–331