Settling the tailings pond question
W hat to do with tailings ponds from oil sands mining operations has long been the industry's leading environmental challenge. These vast ponds have grown to 220 square kilometres and now hold about 1.2 trillion litres of murky, contaminated water that will take many decades to settle out.
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Mapping Leachate Pathways in Aging Mining Tailings Pond …
Mining activities often leave behind a legacy of environmental challenges, with aging tailings ponds representing a significant concern due to their potential for leachate formation and subsequent contaminant release. Thus, this study employs Electrical Resistivity Tomography (ERT) to investigate the intricate pathways of leachate within an aging mining …
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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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Tailings.info What Are Tailings?
The engineering characteristics of tailings are in most instances influenced by the degree of thickening and the method of deposition. It is therefore essential that while investigating the properties of tailings that the physical …
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Reprocessing of Gango Gold Mine Tailings via Different …
Study showed that the Gango gold mine tailings contains substantial amount of gold at an average grade of 7.38 g/t 1. With this grade of gold, the total gold accumulated in the tailings pond is around 945 kg, an amount with significant economic value. The Gango gold mine tailings, therefore, can be reprocessed to recover the precious gold metal.
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Solutions to Mine Tailings
The Challenge With Tailings Dams. Tailings from mining operations are usually stored in large tailings dams as a slurry that contains the waste materials from the beneficiation process. ... We offer a range of equipment for the classification and thickening of your tailings to help unlock the value in the tailings and ensure a safer mine for ...
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Current situation and prospects for the clean utilization of gold tailings
Treating gold tailings used for agroforestry restoration and land reclamation can be an economical, efficient, and eco-friendly method for the ecological restoration of gold mine tailings. Scholars have carried out a series of studies on ecological restoration of gold tailings pond by using agroforestry restoration and land restoration.
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Chinese molybdenum miner halts production after tailings …
The incident at Yichun Luming's tailings pond on March 28 discharged 2.53 million cubic metres of waste before the leak was plugged. Chinese molybdenum miner halts production after tailings spill ...
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Innovative Tailings Dewatering | Advancing Mine Waste …
By dewatering the tailings and eliminating the surface pond, HDS improves the stability and safety of tailings storage, a key element of the GISTM. Meanwhile, in the event an HDS facility does fail, the lower interstitial water content and surface pond volume reduces the potential for flow, and thus the potential area of inundation.
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Mine Water Treatment | Veolia Water Technologies
There are three main elements of a mine water management program: water quantity, water quality and closure plans. Water quantity The quantity of water available at a mine site varies depending on the region. For example, in the western United States, water scarcity can play a role where the mine is reusing its pit water, but in parts of Canada, we are seeing the opposite …
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Central Idaho's Yankee Fork Gold Dredge
The Yankee Fork Gold Dredge created the numerous gravel piles or "tailings" you see along the Yankee Fork River and provide the most visible evidence of placer mining on the Yankee Fork. Operating between 1940 and 1952, this Depression era dredge removed enough gold to create a gold brick two feet square.
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Province testing discoloured substance spotted at gold mine tailings pond
Environmental groups fear there was a tailings pond leak at Atlantic Gold's Moose River, N.S., gold mine, but the company says its systems are operating normally.
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Biden blocks Pebble copper-gold mine in Alaska
There is no reason to mine Pebble with a mega open pit with surface waste dumps and a huge tailings pond. It can be mined with improved economic benefits from underground leaving a 100-150m Crown ...
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CHAPTER V MINE TAILINGS – A SYSTEMS APPROACH
practices in the area of tailings management so this essential industry can continue with far less impact to the communities where mining takes place. Progress in tailings management requires taking into consideration that tailings are part of a complex system. There is more complexity to managing tailings than can be handled by simple linear ...
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JV Article: Dundee's cyanide-free tech cuts gold
The trademarked process, called Clevr, uses a 2% bleach solution in leaching kinetics, the chemical reaction that separates gold from ore, to release gold within a couple of hours versus 36...
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From Tailings to Treasure? A New Mother Lode
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 …
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Equipment for Responsible Mining
This booklet provides guidance on various types of equipment that can be used in setting-up a small to medium-scale responsible gold mining operation in Guyana.
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Clean TeQ goes into tailings management …
Tailings pond at Teck Resources' Antamina copper-zinc mine in Peru. (Image courtesy of Paulo Tomaz |Flickr Commons.) Diversified water technology company Clean TeQ Water (ASX: CNQ) is...
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From Tailings to Treasure? A New Mother Lode
New technology allows it to recover up to 40% of the gold left in particle form in tailings. DRD Gold extracted 33,600 ounces of gold, worth nearly US$40 million, in the last quarter of 2013. Mintails, a mine tailings …
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Tailings Dams: Where Mining Waste is Stored Forever
But John Shively, CEO of the Pebble Limited Partnership, noted that "in 2010, the third largest earthquake in history rocked the nation of Chile, and the tailings pond at one of the world's ...
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Safety guidelines and good practices for tailings …
A tailings storage facility is a facility used to contain tailings. This can include a tailings dam (impoundment and pond), decant structures and spillways. A tailings storage facility can also be open pits, dry stacking, lakes or underground storages. A tailings dam is a tailings embankment or a tailings disposal dam. The term
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Tailings pond breach at Imperial Metals' Mount …
Imperial Metals' (TSE:III) Mount Polley Mine is a open pit copper and gold operation in south central British Columbia. Last year the mine produced 38.5 million lbs of copper and 45,000 oz of ...
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How Valve Solutions Improve Tailings Disposal and Water …
Tailings disposal One of the more punishing applications in a mine can be found in the tailings disposal network. The movement of large amounts of dense, abrasive material …
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What caused the Mount Polley tailings pond failure?
Maybe you look at the history. 5 years ago Imperial asked for a discharge permit for treated water from the dam. The water was completely benign, and was approved by the government.
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The Mining Process | OceanaGold
5. Manage the waste. Tailings, Waste Rock. The two main waste materials that come from the mining operations are tailings and waste rock. Tailings is the name for the slurry that is left after gold and silver have been extracted from the crushed ore.Tailings slurry is made up of approximately 30% finely crushed solids and 70% water, including small amounts of cyanide …
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Treatment And Utilization Of Gold Mine 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. Overall, …
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Socio-Environmental Risks Linked with Mine Tailings …
There is a need to define mine tailings in a clear, precise, multidisciplinary, transdisciplinary, and holistic manner, considering not only geotechnical and hydraulic concepts but also integrating environmental and geochemical aspects with implications for the sustainability of mining. This article corresponds to an independent study that answers questions …
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Tailings ponds for mining and oilsands waste: FAQs | CBC …
The breach of a tailings pond at the Mount Polley copper and gold mine in B.C. has released 10 billion litres of mining wastewater into local waterways in early August.
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How to handle mine tailings safely and sustainably?
The practice of dewatering tailings, however, is still limited to few areas globally. According to 's analysis, only ~5% of tailings generated in 2018 were dewatered into thickened, paste ...
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Take two: why mine tailings are worth another look
The focus is on removing and concentrating sulphur (iron pyrite) to be sold to, and used in gold production, by Barrick-operated and majority owned Nevada Gold Mines – the …
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