tailings in mining


Chapter 4: Mining waste - SGU

A tailings storage facility at a gold mine. Spigots are seen going out from a pipe which is transporting the tailings. Photo: Pontus Westrin. Mine water. Water is used in many mining processes. Large volumes of water are used in some processes, i.e. milling. In a mine process, water is a valuable resource, and is often recycled and re-used ...

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Tailings Management - The Mining Association of Canada

Tailings are a by-product of mining, consisting of the processed rock or soil left over from the separation of the commodities of value from the rock or soil within which they occur. If not managed responsibly, tailings can pose potential risks to human health and safety, the environment, infrastructure, and to mining companies themselves. ...

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Tailings Dam Failure - WaterLegacy

Tailings dam failure is one of the most serious – and avoidable – threats from the proposed PolyMet sulfide mine. A PolyMet tailings dam collapse would release polluted wastewater, tailings slurry, and sediment – harming water quality and …

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From Tailings to Treasure? Miners Make ... - Advancing Mining

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 enough slimes to last until 2025. Goldfields has also developed new technology for a tailings retreatment plant, and processes 12,000 tons of current ...

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Tailings Guide - The Mining Association of Canada

Tailings Guide implementation checklist, Version 3.1 For new tailings facilities and for facilities undergoing mine life extensions, the Tailings Guide recommends using a rigorous approach to selection of the most appropriate tailings management technology and facility location.

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Tailings management - Outotec

Outotec Tailings Management brings a comprehensive approach by combining 3 practices: Dewatering the tailings, handling them with dry stacking, and reprocessing new and existing ones. We also look to elevate the approach to reduce social hazards and associated risks, which will improve the overall image of the mining industry.

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Dry Stack Tailings In Cold Regions: Opportunities And ...

Mine developers and operators are evaluating filtered tailings, also known as dry stack tailings, as an alternative to whole slurry, thickened, and paste tailings. Focus on enhancing physical stability and reducing short- and long-term liability associated with tailings storage facilities has increased, in part due to the failure of the ...

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Mine Tailings Safety - YouTube

The Mine Tailings Safety video highlights the importance of safely managing waste from mining activities, stored in so-called tailings management facilities,...

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Managing tailings from mining operations

Tailings differ from overburden, which is the waste rock or other material that overlies an ore or mineral body and is displaced unprocessed during mining. Tailings are the mineral waste remaining after the processing of ore to extract mineral concentrates …

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THE FUTURE OF MINING TAILINGS MANAGEMENT - YouTube

Water Management is becoming a priority in Mining applications Recent disasters from all over the world clearly demonstrate the dangers of traditional mining...

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Mine Tailings - groundtruthtrekking.org

Mine tailings are the ore waste of mines, and are typically a mud-like material. Worldwide, the storage and handling of tailings is a major environmental issue. Many tailings are toxic and must be kept perpetualy isolated from the environment. Scale of tailings production is immense, since metal extraction is usually only ounces or pounds, for ...

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Mine Tailings Disposal Methods

Mining Coal Tailings Disposal As has been pointed out earlier in this section, immense quantities of wastes are produced by coal mining activities. Many of the regulations governing these wastes have only recently been enacted, and the Surface Mining Control and Reclamation Act of 1977 (PL 9587) will be a major factor influencing coal mining ...

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Treatment of tailings in mining operations | Condorchem ...

Wastewater produced by the mining industry is also known as tailings. Tailings contain waste from the extraction processes, equipment washing water and the refining process. It is a sludge-like waste that contains a mixture of fine gangue particles, chemicals and water; and in many cases is stored in large facilities called tailings dams or ponds.

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Dewatering & processing tailings with centrifuges

In mining, the term tailings refers to fine-grained residues in the form of sludges. They are created during the processing of ores and minerals. The resulting waste water or overburden sludge is partly contaminated with chemicals. Tailings are a risk to the environment when stored in sludge ponds. If the dam breaks, this can have a significant ...

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Mine tailings: reprocess, recover & recycle – The ...

Say a copper mine produced 1Mt of metal in 1999 at 90% recovery. The remaining 10% of copper, around 111kt, went to tailings. If the average copper price in 1999 was US$1,500/tonne then that 10% represented US$166.5 million of metal. Fast forward 20 years and at today's price, US$5,842/tonne, if that material could be reprocessed and an extra ...

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Mine Waste Transfer and Disposal Methods - Mine Tailings ...

Mine Tailings Tailings are finely ground rocks and other mineral waste as a result of mineral processing. Due to the way minerals are processed, tailings can contain concentrations of processing chemicals. This can make mine tailings an environmental concern, so …

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Tailings management - Alfa Laval

Tailings Surface Mining Tailings Leaching / Digestion l ota i n Pregnant Liquor P ec p ta o Solid-Liquid Separation Calcining Smelting Dore Bar / Ingots nod eSlim s MINING / BENEFICIATION EXTRACTION & CONCENTRATION Th icke ng Fil tra ion Leaching Impurity 1Remov al Drying Packaging Concentrate Solvent Extraction 3 5A 4 6 8 9 12 1 11 2 F 10

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Geochemical Stability of Oil Sands Tailings in Mine ...

Oil sands surface mining in Alberta has generated over a billion cubic metres of waste, known as tailings, consisting of sands, silts, clays, and process-affected water that contains toxic organic compounds and chemical constituents. All of these tailings will eventually be reclaimed and integrated into one of two types of mine closure landforms: end pit lakes (EPLs) or terrestrial landforms ...

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Environmental Risks From Mine Tailings

Tailings are a type of rock waste from the mining industry. When a mineral product is mined, the valuable portion is usually embedded in a rock matrix called ore.

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Mining Tailings Management Market Report – Research ...

The Mining Tailings Management market revenue was xx.xx Million USD in 2019, and will reach xx.xx Million USD in 2025, with a CAGR of x.x% during 2020-2025. Under COVID-19 outbreak globally, this report provides 360 degrees of analysis from supply chain, import and export control to regional government policy and future influence on the industry.

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Treatment of coal tailings - ScienceDirect

Return water from the tailings facility is required as part of the plant water balance and the plant is in a location of extreme cold temperature, where liquid effluents from the plant would freeze. 3. There is insufficient room to locate a tailings pond or dam that can hold the necessary capacity of tailings over the life of the mine. 4.

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Circular Economy in Tailings Management | SpringerLink

A safe, fair, and sustainable mining industry in which mining waste is used as a raw material is consistent with the principles of a circular economy. Mining waste is predominantly waste rock and tailings. Waste rock tends to be made up of large fragments and its permeable matrix allows safe storage at low cost.

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Tailings solutions: How to filter down the options

All tailings needs are unique to individual mine sites. Every mineral deposit has different mineralogy characteristics and is situated in different climates and topographies, surrounded by different socio-economic conditions. These unique parameters influence mine design, process design, the type of tailings produced and how the tailings are ...

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Tailings facility failures in the global mining industry ...

Tailings facilities are physically nested within a mining complex and designed to handle the waste remnants of the mining process (Burritt & Christ, 2018). They have not—until recently—been at the forefront of global policy initiatives about …

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Alfa Laval - Tailings

Mining dams pose a substantial risk, and residue management clearly needs to change. Alfa Laval is leading that transformation. The robust design and large capacity of our solid-bowl decanter centrifuges have proven the perfect solution for safe and secure dewatering of mine tailings.

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Environmental Risks of Mining

ISL mining has environmental and safety advantages over conventional mining in that the ore body is dissolved and then pumped out, leaving minimal surface disturbance and no tailings or waste rock (World Nuclear Association, 2012).

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Visualizing the size of mine tailings - MINING.COM

Visualizing the size of mine tailings. On January 25th, 2019, a 10-meter tall wave traveling 120 km/h, washed 10 million m 3 of mining waste from …

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Cyanide Use in Gold Mining - Earthworks

Kyrgyzstan, Kumtor Gold Mine, 1998: A truck carrying 2 tons of sodium cyanide crashed into the Barskoon river, resulting in more than 2,000 people seeking medical care. Romania, Aural Gold, 2000 : A tailings dam ruptured, spilling 3.5 million cubic feet of cyanide-contaminated waste into the Tisza and Danube Rivers, killing fish and poisoning ...

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A look at ways of controlling tailings to avoid future ...

A case in point: the aftermath of the Mount Polley mine tailings disaster of August, 2014 in central British Columbia, in which some 10 million cubic metres of water, and 4.5 million cubic metres of slurry were released into downstream watercourses.

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All of the World's Mine Tailings, in One Visualization

Visualizing the Size of Mine Tailings On January 25th, 2019, a 10-meter tall wave traveling 120 km/h, washed 10 million m 3 of mining waste from the Brumadinho tailings dam over the Brazilian countryside killing somewhere between 270 and 320 people.. This was a manmade disaster, made from mining the materials we use daily. Every copper wire in your house, steel frame in an EV, …

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(PDF) Filtered Dry Stacked Tailings-The Fundamentals

Mine tailings are a major waste stream generated in mining operations. Tailings are the waste material left over after the valuable component has been removed through processing. They include ...

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MINING RECLAMATION IN NORTH AMERICA

About a century ago, the Climax mine first began mining and milling molybdenite ore. The mine, located at an altitude of roughly 10,000 feet in the Colorado Rockies, has produced substantial amounts of ore and continues operating today. 4 Robinson Tailings Pond and surrounding area in 1998 before placement of biosolids to aid in vegetation growth.

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Mobility of heavy metals from tailings to stream waters in ...

Acid mine drainage phenomena were observed in the area. The main sources of contamination are the tailings stored in mine tunnels and abandoned along fluvial banks. A methodological approach was adopted in order to identify relations between tailings and water contamination.

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