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The tailings pond was built in 1976. Over the following years, the pond's earth dam was raised several times by a few metres, as is customary in ore mining, to create additional space for the storage of processing residues. The dam's steps were placed with an offset on top of each other, much like the steps of a staircase (upstream …
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Management of Tailings and Water Storage Procedure. Download all. Add all to basket. Our Tailings Policy was released in July 2021, reinforcing our commitment to proactive, safe and sustainable tailings management, helping to protect the health and safety of our people, communities and the environment in every region we work in.
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The GTR notes that mine operators must have "zero tolerance for human fatalities and strive for zero harm to people and the environment from the earliest phases of project conception.". It ...
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Tailings are the materials left over following the processing of mined ore that separates the valuable metals or minerals from the host rock. Tailings are not the same as waste rock, the latter being soil or rock or other material that covers or surrounds an orebody and that is displaced during mining but is not processed.
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A method of reducing concentrated tailings viscosity and yield stress for ease of pumping and them improved the safety of tailings storage in dam and a method of …
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Introduction. Billions of tons of mine tailings are generated annually from extracting and processing of metal and mineral ores, 1, 2, 3 stockpiled in about 4,800 mine tailings storage facilities (TSFs), 4 occupying >240,000 ha of land worldwide. 4 Iron (Fe) ore tailings are one of the most challenging global tailings liability, 5 with over 1.4 billion …
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The guidelines, organized around six topic areas, 15 principles and 77 auditable requirements, add new requirements for …
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The mining industry produces large amounts of tailings which are disposed of in deposits, which neglects their potential value and represents important economic, social and environmental risks. Consequently, implementing circular economy principles using these unconventional geomaterials may decrease the wide-ranging impacts of raw …
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Reuters. Rescue workers at Brazil's Brumadinho dam collapse in protective gear. The sludge released in the disaster contained iron ore mine waste. Reuters/Washington Alves. Nearly 1,800 ...
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On 25 January, a tailings dam at the Córrego do Feijão mine in Brumadinho, in the Minas Gerais region of Brazil collapsed, spilling 12 million cubic metres of mud and sludge. At the time of writing, 215 people were confirmed dead, with a further 91 are missing. "The Brumadinho dam failure in Brazil is a human and environmental …
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On 25 January 2019, a tailings dam at the Córrego do Feijão iron ore mine in Brumadinho, Brazil, failed suddenly without warning. Two hundred and seventy people were killed as 9.7Mm3 of stored tailings were released, with mudflow running through the Paraopeba River, demolishing infrastructure, and seriously affecting the regional …
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Samarco is world's second-largest iron ore mine with estimated reserves at 2.97 billion tons, and initial production of 19 million tons per year. The mine-tailing dam disaster on November 5, 2015, caused a huge mudslide that killed 19 people, polluted nearby Doce River, and devastated livelihoods.
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In January 2019, the Brumadinho tailings dam, at an iron ore mine in Brazil, suffered a catastrophic failure, releasing 12 million cubic metres of toxic tailings. The mudflow obliterated the mine's offices and cafeteria and all the farms and houses in its path. It killed over 250 people and, according to Brazil's National Water Agency ...
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A standard method of reprocessing involves dragging tailings from an existing dam back to the concentrator and using required mineral processing solutions to liberate the valuable metals. The ...
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Catastrophic failure of a tailings dam at an iron ore mine complex in Brumadinho, Brazil, on 25th January 2019 released 11.7 million m3 of tailings downstream. Although reportedly monitored using ...
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To set the scene, we first describe the characteristics of tailings and of construction of tailings dams, and the common causes of their failure. We conclude with …
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The incident on 5 November 2015 has been described as the worst environmental disaster in Brazilian history, with 19 lives lost as the wave of tailings destroyed the nearby village of Bento Rodrigues on its destructive path towards the southern Atlantic Ocean. For Samarco, the operator of the Germano iron ore mine and …
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by Sarah Sax on 21 February 2024. In 2019, the collapse of an iron-ore tailings dam in Brumadinho, southeastern Brazil, killed 272 people, flattened entire villages, and caused widespread ...
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Tailings are the waste products from mining. Mechanical and chemical processes are used to grind up rock into a fine sand to extract the valuable mineral or metal from the rock ore. All the unrecoverable and uneconomic remnants from this process are waste. They include finely ground rock particles, chemicals, minerals and water.
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Mine tailings impoundments produced during beneficiation and extraction of iron ores create environmental threat and are disposed at high monetary and ecological …
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Due to growing mining volumes, global tailings generation was estimated to total ~3.2 bn tons for copper and ~1.8 bn tons for iron in 2018. It is well known by the mining industry that the cost of tailings management and reclamation are significant for business profitability and long-term survival.
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In the past, many failures of these iron ore mine tailings storage facilities/dams have been reported worldwide in different forms. In this paper, an attempt …
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Abstract. The engineering properties of tailings are important for the safety evaluation and engineering design of tailing dams. In the present study, laboratory experiments were performed to investigate the geotechnical properties of four different tailings, including two iron tailings (coarse and fine) and two copper tailings (coarse and fine).
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Stacked tailings have become increasingly popular in recent years as a more environmentally friendly option for tailings disposal. However, the design and assessment of stacked tailings present unique challenges due to their unprecedented heights and the wide range of factors that affect their behavior, including particle types and sizes, …
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By using the proposed drainage system, the height of the tailings dam of this mine can be increased from 45 m (elevation 2015 m) up to 60 m (elevation 2030 m), which will increase by 8 million ...
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The tailings pond was built in 1976. Over the following years, the pond's earth dam was raised several times by a few meters, as is customary in ore mining, to create additional space for the ...
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Kolontár, Hungary: In 2010, a tailings dam storing waste from bauxite mining collapsed due to heavy rain. The red toxic sludge from the dam spread over eight square km (more than three square ...
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Mining involves processing of mined ore to capture valuable minerals, which in turn produces large volumes of tailings. The annual global tailings production is currently estimated to be at the range of 10-12 billion tons/annum and increasing. Therefore, it's important to reshape tailings management and accelerate the positive change.
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In the past, many failures of these iron ore mine tailings storage facilities/dams have been reported worldwide in different forms. In this paper, an attempt has been made to review the failure modes, mechanisms and possible solutions to enhance the stability and safety of iron ore tailings dams. A comprehensive investigation has …
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After 3 years of the Mariana tragedy, on 25th January 2019, another mining dam consisting of iron ore tailings failed catastrophically in the Brumadinho city, Minas Gerais State, Brazil. The rupture produced more than 11 × 10 6 m 3 of mining waste – equivalent to a 10-m high wave of mud that spread 10 km the downhill – that reached the ...
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Tailings dams are embankments constructed near mines to store waste in a liquid or solid form. But 126 companies, many of them smaller, have yet to commit to the standard, leaving their ...
DetailsIron 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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This study aimed to characterize index properties, evaluate the effect of compaction on the hydraulic behaviour, and evaluate field variability of iron ore tailings …
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ABSTRACT Mine tailings dams are surface impoundment structures consisting of raised embankments that are built to contain mine tailings and mill effluents. In the past, many failures of these iron ore mine tailings storage facilities/dams have been reported worldwide in different forms. In this paper, an attempt has been made to review …
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The engineering properties of tailings are important for the safety evaluation and engineering design of tailing dams. In the present study, laboratory experiments were …
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